Advantages and disadvantages of microwaves electromagnetic spectrum

Microwave Frequency In Hz - Home Kitchenaid Microwave

Some advantages of microwaves are that they can easily Pass through the ionosphere, and are therefore suitable for satellite to Earth transmission. Microwaves can be modified to carry many signals at one time, including data, television pictures and voice messages. The Bandwidth of Microwaves is larger than the common low frequency radio waves Advantages, Disadvantages and Applications of Microwaves Sreejith Hrishikesan April 15, 2019. Microwave is the region in electromagnetic spectrum in the range between 1 to 300 GHz. The wavelength of microwave range between 30 - 3 cm. Microwave engineering is an important consideration in the development of high resolution radar. Microwaves can even bounce off the moon. Another disadvantage of microwave signals is that electromagnetic interference, or EMI, can hinder or damage its execution. EMI can come from electric motors, wind turbines, electric power transmission lines, etc. Also, transmission from microwave signals can be affected by rain, fog, and snow Following are the disadvantages of Microwave frequency: ➨As it travels in line of sight, it is affected by obstacles such as mountains, tall buildings etc. This has to be taken care in RF budget planning. ➨The microwave frequencies are attenuated due to various parameters such as rain, snow, fog etc

Wireless Charging of mobile phones using microwaves ppt

Microwaves - Electromagnetic Spectru

Disadvantages of Microwave Communication As we know microwave is used for microwave communication. Following are the disadvantages of Microwaves: ➨For the frequencies which are below 30MHz standard circuit analysis can be applied The essay will also cover the disadvantages of using electromagnetic radiation. The electromagnetic spectrum consists of the wide range of electromagnetic radiation. The spectrum can be divided by wavelength into the various frequencies - radio, microwaves, infrared, visible light, ultraviolet, x-rays and gamma rays There are a few disadvantages of Microwaves such as the following − Cost of equipment or installation cost is high. They are hefty and occupy more space. Electromagnetic interference may occur

Advantages, Disadvantages and Applications of Microwaves

  1. e when the Big Bang theory.
  2. The main disadvantage of microwave transmission is that microwave towers can exchange data only if they have a clear line of sight between them with no obstacles such as buildings, hills or trees in the way. Other disadvantages include signal absorption by the atmosphere, weather interference and expense
  3. The Advantages and Disadvantages of Microwave Radio Communication Essentially, microwaves are Electromagnetic waves with frequencies that range from approximately 500 MHz to 300 GHz or more. They are in use in a lot of technology from mobile phones to satellites and home appliances. A lot of systems rely on microwaves to transmit data and.

The very popular microwave oven uses microwaves to heat the food. Microwaves are the combination of radio waves and infrared radiation on the electromagnetic spectrum Electromagnetic radiation - Electromagnetic radiation - Microwaves: The microwave region extends from 1,000 to 300,000 MHz (or 30 cm to 1 mm wavelength). Although microwaves were first produced and studied in 1886 by Hertz, their practical application had to await the invention of suitable generators, such as the klystron and magnetron ADVANTAGES AND DISADVANTAGES: a man made extension of the naturally generated electromagnetic spectrum that provides heat and light for our sustenance. From this view point, the SPS is merely a down frequency converter from the visible spectrum to microwaves

What Are the Advantages and Disadvantages of Microwave

  1. Radio waves. Radio waves have the longest wavelengths and lowest frequencies in the electromagnetic spectrum. The wavelengths of the radio waves ranging from 1mm to 100km and frequencies ranging from 3KHz to 300GHz. Like all the other electromagnetic radiations radio waves travel at the speed of light in a vacuum
  2. Microwave technology is very useful in communication because it easily penetrates the earth's atmosphere which comes in handy primarily for space-vehicle communication.. Microwave technology is used in the world's data, TV, telegraphs, satellites, spacecraft communication, it is also used in the microwave ovens and in radar technology and shorter microwaves are used in remote sensing
  3. Within the electromagnetic spectrum, infrared sits between microwaves and visible light, and occupies wavelengths between 700 nm and 1 mm, as well as frequencies ranging from 430 THz to 300 GHz. Furthermore, similar to other forms of electromagnetic radiation, it propagates energy and exhibits both wave-like and particle-like properties
  4. Disadvantages Of Microwaves. 1127 Words5 Pages. Radiation including radio waves, microwaves, microwaves, infrared, visible, ultra violet, x-ray, and gamma ray are basically called the electromagnetic radiation. Between these electromagnetic radiations, I chose the microwaves in specific to research about
  5. The Wi-Fi 6E standard is a newer generation Wi-Fi technology launched in 2019 that is set to replace the earlier Wi-Fi 6 and Wi-Fi 5 standards. It adds support for using the 6 GHz frequency of the electromagnetic spectrum. The Wi-Fi Alliance, a nonprofit organization that oversees the implementation and further development of Wi-Fi technology, described this new standard as the most monumental.

As a SPACE, it offers some reliable and trustworthy empirical points. That is, when pointing at a point, scientists are able to find some resolution that is good enough to measure (unless it has insignificant gravity), and predict. Third dimensi.. Microwave Cooking Advantages and Disadvantages. Microwaves are sort of a combination of radio waves and electricity moving together in space. Microwave energy is so powerful that it's been used for centuries to help with cooling, heating, and the transfer of information Microwaves are waves that radiate electromagnetic energy with a shorter wavelength. Microwaves are not reflected by the ionosphere. Microwaves travel in a straight line and are reflected by conductive surfaces. Microwaves are easily attenuated over shortdistances. Microwave currents can flow through a thin layer of cable. Advantages of microwaves Microwave currents can flow through a thin layer of a cable.Microwave currents can flow through a thin layer of a cable. Advantages of MicrowavesAdvantages of Microwaves There are many advantages of Microwaves such as the following −There are many advantages of Microwaves such as the following − Electromagnetic Wave: Among the different radiations of EMR, microwave radiation exists between infrared region and radio wave region. The wavelength of microwaves ranges between 1mm-30cm and the.

Advantages of Microwave,disadvantages of Microwave Frequenc

Microwaves cause water and fat molecules to vibrate, which makes the substances hot. So we can use microwaves to cook many types of food.. Mobile phones use microwaves, as they can be generated by a small antenna, which means that the phone doesn't need to be very big. Wifi also uses microwaves.. The drawback is that, being small, mobiles phones can't put out much power, and they also need a. Microwave Radio Communications Advantages & Disadvantages. Advantage: Able to Transmit Large Quantities of Data. Advantage: Relatively Low Costs. Disadvantage: Solid Objects. Disadvantage: Subject to Electromagnetic and Other Interference. Which of the following is the main advantage of microwave Microwaves Microwaves are nonionizing radiations that induces molecular motion by ion migration and dipole rotation but does not alter the composition of the molecules. Microwave energy is a part of electromagnetic spectrum, and is defined by wavelength range between 1mm to 1m and frequency range between 300 MHz and 300 GHz

Microwaves are a form of electromagnetic radiation with for example, is a weak microwave noise filling Bands of frequencies in the microwave spectrum are The electromagnetic (EM) spectrum Infrared waves are in the lower-middle range of frequencies in the EM spectrum, between microwaves and for example, in To remember the order of the electromagnetic spectrum take a look at infrared spectrum. Microwave Radiation is a type of electromagnetic Radiation which have very small wavelengths compared with radio waves .In Electromagnetic spectrum Microwaves lies in between Infrared radiation and Radio waves.Its frequency range is 300 MHz to 300 GHz.More information can be transmitted through microwaves due to its larger bandwidth Electromagnetic. Spectrum Radio Waves and Microwaves Electromagnetic Spectrum Radio Waves • Radio waves are a type of electromagnetic radiation, as are microwaves, infrared radiation, X-rays and gamma-rays. The best-known use of radio waves is for communication; television, cellphones and radios all receive radio waves and convert them to mechanical vibrations in the speaker to create sound. Microwave 1. by Group 4 : •Levana Surya •Mabrur Zanata •Marica Nancy •Meizaristy Ananta Wuryani 2. Electromagnetic Wave Defintion A wave which can travel without medium Characteristics Source •A transversal wave •Have same characteristics with general wave such as reflecting, refraction,interfer ence, and diffraction, and also polarization •Electric oscilation •Solar ray.

Microwave oven, the name says it all. The very popular microwave oven uses microwaves to heat the food. Microwaves are the combination of radio waves and infrared radiation on the electromagnetic spectrum. These microwaves help in heating the food properly inaccurate temperature yesterday i found some advantages/disadvantages in literature of circular waveguides, but i dont know if i can translate these into cavity resonators: advantages: TE01 mode in circular waveguide has the lowest attenuation per unit length of waveguide hence suitable for distance waveguide transmission. --> since microwave ovens dont want to. Microwaves have second lowest energy of the electromagnetic spectrum We can also call microwaves (Submillimeter) because the wavelength is so small that it is between 0.1 nm and 1.0 meter long Microwaves help us see the way the universe looked at the beginning of its existence Microwave In microwave transmission signals travel in a straight line and therefore the transmitter and receiver must be in a direct line of sight of each other. 30 Advantages and disadvantages of microwave Advantages They operate at a high speed. It's less prone to transmission errors unlike twisted wire pair. Are capable of operating in. • • Because of high frequency and short wavelength phase changes continuously w.r.t time. WHAT IS MICROWAVE?(CONTINUE) • Microwaves up to 300 GHz occupy a region in the electromagnetic spectrum between radio waves and infrared waves, • Microwaves behaves more like rays of light than ordinary radio waves

Microwave Radio Communications Advantages & Disadvantages

The unique heating mechanisms of microwaves permit dramatic energy savings in many instances, as well as providing other benefits which will be discussed further in this article. Technology Microwaves are electromagnetic waves with frequencies that lie between 300 MHz and 300 GHz, with wavelengths that vary from 1 mm to 1 m How fast do each of the types of waves in the electromagnetic spectrum travel through a vacuum like outer space? They all travel at the speed of light—300,000 km/sec. List the four characteristics usually used to describe electromagnetic radiation. frequency, wavelength, energy, and speed The disadvantages of these radio waves are they are not easily absorbed by the atmosphere. 2)Unguided media in the microwave: These are unidirectional which means traverse is only in one direction. The electromagnetic waves are having frequencies between 1 and 300 GHz are defined as microwaves

Microwave Frequency Bands And Applications - Westinghouse

Disadvantages of Satellite Microwave Communication. It is a very high cost of placing the satellite into its orbit. Since the waves are transmitted by satellites all around the world. Therefore, the security of the message is fragile. Satellite use microwaves which are vulnerable to electromagnetic interferences Advantages and disadvantages. Terrestrial Microwave. The frequency of Electromagnetic waves between 300 MHz and 300 GHz are called microwaves. These waves are unidirectional. Whenever through an antenna microwave are transmitting, they can be narrowly focused. Advantages. Microwave transmission is cheaper than using cables blumblaum/CC-BY 2.0. One of the disadvantages of radio waves is that they cannot transmit a lot of data simultaneously because they're low frequency. In addition, continued exposure to large amounts of radio waves can cause health disorders like leukemia and cancer. Despite these setbacks, technicians have effectively achieved enormous.

Enjoyed in moderation, UV-A and UV-B rays tan the skin, but high doses can cause redness, rashes, allergies or sunburn, for instance on the eyelids. UV-B radiation can cause acute photokeratitis (a.k.a. UV keratitis), a type of damage to the cornea. Medium-term damage: UV radiation may lead to conjunctivitis. Long-term damage The cell phones are dangerous as they emit the microwaves, they produce the heat, when people hold the source of emission close to their brain, they may have the brain tumors in the exact size, shape, and position as the antenna on their cell phone. Microwave technology, uses and dangers of microwaves. The advantages and disadvantages of mobile. Advantages: Simple, easy to create, very accurate when used correctly Disadvantages: Hard to get accurate, 50% of the light can be reflected back to the source A Michelson Interferometer is tool used for optical interferometry. Using a beamsplitter, a light source is reflected into two arms, where both light beams are then reflected back towards the beam splitter Cons: Disadvantages of Beamforming. Despite the aforementioned advantages, beamforming has one notable disadvantage: it requires the utilization of computing resources. The processing requirements of implementing and maintaining this technology have cost, hardware, and energy implications. Below are the specific disadvantages and limitations A microwave only has one heat component to cook foods - a magnetron. This generates microwaves from electricity inside the microwave oven. Microwaves are one type of wave on the electromagnetic spectrum. These waves are absorbed by water, fats, and sugars (not by glass or ceramic) and go through the food and excite water and fat molecules

Advantages and disadvantages Spectrum The spectrum available for Wi-Fi is limited to an area near 5 GHz, while Li-Fi information is transmitted on beams of light, whose range is an enormous chunk of the electromagnetic spectrum, clustered aroundGHz For starters, the fifth-generation standard has a wider spectrum allocation and uses higher frequencies of electromagnetic radiation within the upper limits of radio waves and the range of microwaves. In wireless digital communication, data transmission speed is dependent on frequency levels and wavelengths, along with other factors Keeping this in consideration, what are the advantages and disadvantages of microwave cooking? It is more dangerous for cooking baby food. Though microwave retains the nutrients, the texture of food, color, and taste will change, compared to cooking in a stove. It leads to dehydration, as the water content decreases and food are more prone to drying, and the cooked food is sometimes unevenly. Advantages And Disadvantages Of Z Waves. 2155 Words9 Pages. Terahertz (THz) waves, or T-rays, refer to electromagnetic radiation in the frequency range of 0.1-10 THz. THz waves occupy the region between microwaves and the infrared, as shown in Figure 1.1. Until about two decades ago, when THz time-domain spectroscopy technique was invented.

Abstract. Radio waves, Microwaves and Infrared are all different types of wave occurring in different. parts of the electromagnetic spectrum and are majorly used so this paper will describe the. IR sensors use infrared radiation of wavelength between 0.75 to 1000µm which falls between visible and microwave regions of electromagnetic spectrum. IR region is not visible to human eyes. Infrared spectrum is categorized into three regions based on its wavelength i.e. Near Infrared, Mid Infrared, Far Infrared Advantages of unguided media. The signal is broadcasted through free space (air). Unguided signals can travel in several ways: sky propagation, ground propagation, and line-of-sight propagation. The electromagnetic spectrum, ranging from 3 kHz to 900 THz, used for wireless communication. Read: Introduction To Computer Network Advantages and Disadvantages of Ultraviolet Radiation (210) 599-0048. Ultra Violet Radiation. The ultraviolet radiation method is one of the most used methods of water softening concerning the removal of bacteria. The ultraviolet rays are so powerful such that when they are directed to the target water they instantly destroy all the pathogens.

This spectrum is comprised of various frequencies of electromagnetic radiation, waves of energy that travel through space. The electromagnetic spectrum includes radio waves, WiFi, microwaves, radiant heat, visible light, ultraviolet, and even harmful x‑rays and gamma rays. Many subsets of this electromagnetic radiation can be focused and. Infrared radiation which is sometimes shortened to IR, is part of the larger broader electromagnetic spectrum that includes, radio waves, visible light, microwaves among others (Barnard, 2001). IR radiation exhibits wavelengths of 0.7-300 micrometers and also displays a frequency range of between 1-430 Terahertz X-rays are a form of electromagnetic radiation, just like light waves and radiowaves. Because X-rays have higher energy than light waves, they can pass through the body. X-rays were first discovered over 100 years ago and were quickly applied to medical diagnostic use. Today x-rays remain a valuable tool in diagnosis an What are the advantages and disadvantages of Bluetooth? Wireless networks operate using radio frequency (RF) technology, a frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space.

Advantages and disadvantages of microwave - ECSTUFF4

Microwaves microwaves - electromagnetic waves with a frequency between 1GHz wavelength 30cm and 3GHz. Each of these communications technologies offers its own advantages depending on the circumstances By Gary Elinoff, contributing writer The most common form of wireless technology in use today for telecommunications is Wi-Fi, which is based. Microwaves microwaves - electromagnetic waves with a frequency between 1GHz wavelength 30cm and 3GHz. Leave your thoughts in the comments section below. He has also co- founded of pureLiFi. This could limit the locations and situations in which Li-Fi could be used. Advantages and disadvantages Spectrum The spectrum available for Wi-Fi is.

Non-ionizing radiation is a general term for the part of the electromagnetic spectrum with weak energy that can move atoms in a molecule around or cause them to vibrate, but cannot break atomic bonds on irradiated material. Mobile phones use electromagnetic radiation in the microwave Wireless Sensor Advantages And Disadvantages 724 Words. Advantages And Disadvantages Of Wifi. 1. INTRODUCTION. Wi-Fi stands for wireless fidelity. Wi-Fi is the wireless network that used to connect the internet without wires. It's based upon the radio technology. Many computers can be connected to each other through Wi-Fi and we can share files data and many of the other things through Wi-Fi

Advantages And Disadvantages Of The Electromagnetic

Cell Phones: Advantages and Disadvantages. Advantages and disadvantages of Cell Phones It is for a fact that having a mobile phone now a days is a sort of a necessity and it is an inevitable truth that mobile industry is taking everyone by a storm. From the very basic thing of making a call to texting, and now internet access for just a touch of your finger tips Microwave photonic (MWP) radar has the advantages of generating and processing wide bandwidth microwave signals, reconfigurability, high immunity to electromagnetic interference compared to. Bio-fuels - renewable, advantages and disadvantages: Yes Co2 produced while burning= balanced by co2 absorbed whilst producing it Electromagnetic spectrum. Microwave= heat damage to internal organs Infra= skin bur [Clarification Statement: Examples of advantages could include that digital information is stable because it can be stored reliably in computer memory, transferred easily, and copied and shared rapidly. Disadvantages could include issues of easy deletion, security, and theft.] (HS-PS4-2) Quick Links. Unit Sequence. The electromagnetic spectrum is the range of all possible frequencies of Advantages and disadvantages of Microwaves compared to VHF Advantages Disadvantages 1. Large bandwidth: The bandwidth available is proportional to operating frequency. ∆ = . wire

Microwaves cause water and fat molecules to vibrate, which makes the substances hot. So we can use microwaves to cook many types of food.. Mobile phones use microwaves, as they can be generated by a small antenna, which means that the phone doesn't need to be very big. Wifi also uses microwaves.. The drawback is that, being small, mobiles phones can't put out much power, and they also need a. Introduction Microwave radio signals are electromagnetic waves with high frequencies (between 500 MHz to 300 GHz) and short wavelengths. According to Electronic Communications System: Fundamentals Through Advanced, 5/e, approximately 35 percent of all terrestrial communication is maintained by microwave radio relay systems The Cons of Microwave Radio Communication. Below are the following disadvantages of microwave radio communication: Degrades with Electromagnetic Interference. When an electromagnetic interference or EMI occurs during the transmission process, it'll weaken the microwave signal's performance The electromagnetic spectrum encompasses the range of frequencies electromagnetic radiation can have. The spectrum is categorized by wavelength from longest to shortest: radio wave, microwave, infrared light, ultraviolet light, x-rays and gamma-rays. Similar yet very different, infrared and microwaves..

Microwaves refer to the electromagnetic rays with frequencies between 300MHz and 300GHz in the electromagnetic spectrum. Microwaves are small when compared with the waves used in radio broadcasting. Their range is in between radio waves and infrared waves. Microwaves travel in straight lines and they will be affected lightly by the troposphere Frequency Spectrum of Microwave and Millimeter Waves Advantageous and Limiting Attributes of Microwave and Millimeter Testing NOTE: The old nde-ed.org site is temporarily still up at https://legacy-nde.engineering.iastate.edu utilizes the absorption of microwaves by foodmoisture to detect moisture. The advantages are safe, non-destructive, fast and accurate. The disadvantage is that it is easy to cause standing wave interference. 3. Electromagnetic . Spectrum . The method of detecting grain moisture has its own shortcomings, and th

3.12, 3.13 Electromagnetic Spectrum - Uses & Disadvantage

  1. Microwaves are electromagnetic radiation with wavelength ranging from 1 mm to 1 m in free space with a frequency from 300 GHz to 300 MHz, respectively. International agreements regulate the use of the different parts of the spectrum; the frequencies 915 MHz and 2.45 GHz are the most common among those dedicated to power applications fo
  2. Most microwaves have an oven capacity range of .5 - 2.2 cubic feet. This present a challenge when cooking complete meals. In addition, it can be difficult to utilize the space at the top of the microwave. Solution. Solution one: use a metal rack. Many microwaves come with a removable metal rack that can be used to cook additional food
  3. ADVANTAGES. Microwaves allows to decrease the size of antenna. The antenna size can be smaller as the size of antenna is inversely proportional to the transmitted frequency. The microwave spectrum has larger bandwidth and hence large amount of information can be transmitted using it. Day by day radio frequency spectrum is getting crowded
  4. Radio waves, microwaves, infrared and visible light. The behaviour of an electromagnetic wave in a substance depends on its frequency. The differing behaviours of different groups in the.

Electromagnetic waves - What are the risks and benefits of

Microwave RFID frequencies In general their advantages are: Identify objects fastest because of fastest read speed Excellent for reading many tags at the same time because of fastest read speeds possible Microwaves penetrate many non-conducting objects well and tags can be buried Their disadvantages are: Cost more than L some of the uses of electromagnetic radiations. radio waves: broadcasting and communications. 2. microwaves: cooking and satellite transmissions. 3. infrared: heaters and night vision equipment. 4. visible light: optical fibres and photography. 5. ultraviolet: fluorescent lamps. 6. x-rays: observing the internal structure of objects and.

How we Benefit from the Electromagnetic Spectru

Therefore, there are some differences between the two types of the oven-cooked dishes. There are some advantages and some disadvantages for each type, namely, the food from the microwave oven will be cooked faster and cooked from the inside because the electromagnetic waves can penetrate deeper into the meat of the food Principles of Microwave Remote Sensing. Microwave remote sensing:-. using microwave radiation using wavelengths from about one centimeter to a few tens of centimeters enables observation in all weather conditions without any restriction by cloud or rain. This is an advantage that is not possible with the visible and/or infrared remote sensing

Video: Advantages and Disadvantages of Microwave TutsMaste

RF energy is a collective term for electromagnetic energy emitted by all sorts of waves on the electromagnetic spectrum, which mainly include Radio waves and Microwaves. their advantages. IR is electromagnetic energy at a wavelength that is longer than that of red light. It is used for security control, TV remote control, and short-range communications. In the electromagnetic spectrum, IR radiation lies between microwaves and visible light. So, they can be used as a source of communication Within the electromagnetic spectrum, infrared waves occur at frequencies above those of microwaves and just below those of red visible light, hence the name infrared. Waves of infrared radiation. advantages and disadvantages of each Identify the different modulation Signals are the electric or electromagnetic encoding of data and are used to transmit data. • Outline the characteristics of satellite microwave systems including the advantages and disadvantages as well as the differences between low earth orbit, middle earth. The below figure shows the part of the electromagnetic spectrum, ranging from 3 kHz to 900 THz, used for wireless communication. Advantages of Microwave Transmission. Disadvantages of Microwave Transmission. It is very costly; Terrestrial Microwave. For increasing the distance served by terrestrial microwave, repeaters can be installed.

Advantages and Disadvantages of Microwave Communicatio

What Are Some Advantages of Radio Waves? Radio waves are able to wirelessly carry important information almost instantaneously and, aside from just transmitting audio and television signals, they make cell phones, global positioning systems and space communication possible. Radio wave technology has allowed for significantly faster and easier. Start studying Electromagnetic Spectrum. Learn vocabulary, terms, and more with flashcards, games, and other study tools Microwaves are electromagnetic radiations with frequencies between 300MHz (0.3 GHz) and 300 GHz, and the corresponding wavelengths ranging from 0.9m to .0009m, respectively. In most of the ovens, the microwave used is of 2.24GHz frequency (i.e., wavelength = 12.2cm). These dimensions allow microwaves to penetrate deep inside the food and cook. Advantages of microwave ovens include fast cooking time, a wide variety of foods that can be cooked, easy to clean and the safe defrosting of food. The main disadvantages include making food dry or soggy due to overcooking, lack of versatility and safety issues around the use of some cookware

Disadvantages Of Using Electromagnetic Radiation ipl

Explain how a photomultiplier tube works. What are any advantages or disadvantages of a photomultiplier tube? A photomultiplier tube is commonly used to measure the intensity of ultraviolet and visible radiation. The measurement is based initially on the photoelectric effect and then on the amplification of the signal through a series of dynodes (Figure \(\PageIndex{15}\)) Title: Advantages and Disadvantages of Infrared Waves Description: Just a brief view on some advantages and disadvantages of infrared waves. Buy These Notes Preview. Document Preview. Extracts from the notes are below, to see the PDF you'll receive please use the links above. INFRARED WAVE Advantages And Disadvantages Of Z Waves 2155 Words | 9 Pages. Terahertz (THz) waves, or T-rays, refer to electromagnetic radiation in the frequency range of 0.1-10 THz. THz waves occupy the region between microwaves and the infrared, as shown in Figure 1.1 FIG. t. Segment of electromagnetic spectrum. uses only a minute part of the available en­ ergy (wavelengths from about 4,000 to 7,600 Angstroms or .4-.76microns). Other parts of the spectrum transmit energy at different wavelengths: Infrared radiations-lessthan 3 to about 1,000 microns Microwaves (including radar)-Iessthan a centimeter to. Microwave ovens are so quick and efficient because they channel heat energy directly to the molecules (tiny particles) inside food. Microwaves heat food like the sun heats your face—by radiation. A microwave is much like the electromagnetic waves that zap through the air from TV and radio transmitters

Plasma displays have the following advantages: 1. They can provide a higher contrast ratio. 2. It is possible to make a very big, very thin screen. 3. The image is bright and has a broad field of vision. 4. Motion blurs are less evident. 5. Quick reaction time. Disadvantages of Plasma displays: 1. They use more electricity. 2. A shorter life. Analysing Electromagnetic Waves The electromagnetic spectrum consists of a group of waves of similar nature. The members of the electromagnetic spectrum arranged in increasing frequencies (decreasing wavelengths) are radio waves, microwaves, infrared rays, visible light, ultraviolet rays, X-rays and gamma rays Along with microwave, radiofrequency (RF), and induction, IR radiation transfers thermal energy in the form of electromagnetic (EM) waves and encompasses that portion of the EM spectrum that borders on visible light and microwaves . Certain characteristics of IR heating such as efficiency, wavelength, and reflectivity set it apart from and make. Advantages of Micro-strip patch antennas. Some of their main benefits are: Light weight and low volume. Low creation cost, subsequently can be produced in substantial amounts. linear and circular polarization, supports both,. Can be effectively coordinated with microwave integrated circuits (MICs). Capable of double and triple frequency operations