MICROWAVE COMMUNICATION-overview STRUCTURE 1.1 INTRODUCTION 1.2 Objective 1.3 Classification of Electromagnetics wave 1.4 MICROWAVE 1.5 6 GHz Digital M/W SYSTEM 1.6 Summary 1.7 REFERENCES AND SUGGESTED FURTHER READINGS 1 INTRODUCTION We use the radio portion of the electromagnetic spectrum for many things‚ including television and radio broadcasting‚ telephones and other wireless communications‚ navigation and radar for a variety of measurements including
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CONTENTS Introduction Objective Electromagnetic Spectrum Microwave region Why wireless charging using microwaves Principle and operation Transmitter Design Receiver Design Process of Rectification Advantages and Disadvantages Future Scope Conclusion Bibliography INTRODUCTION With mobile phones becoming a basic part of life‚the recharging of mobile phone batteries hasalways been a problem. The mobile phones vary in their talk time andbattery
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was made by Northrop Grumman Corporation. The radio waves used in radar help to decide the range‚ angle‚ or speed of objects. Radio waves have the longest wavelength‚ smallest frequency‚ and the least energy of all electromagnetic waves. These waves are a type of electromagnetic radiation‚ which additionally include microwaves‚ infrared radiation‚ x-rays‚ and gamma rays. Other important uses of radio waves are for television‚ cellphones‚ and
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Microwaves History of Discovery: In 1864 James Clerk Maxwell predicted the existence of electromagnetic waves/microwaves. Then in 1888 Heinrich Hertz was the first to demonstrate the existence of microwaves by building an apparatus that detected and produced microwaves in the UHF region. Also in 1894 J. C. Bose publicly demonstrated radio control of a bell using millimeter wavelengths‚ and conducted research into the propagation of microwaves. Origin(s): One origin of microwaves include a maser
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Now. 1) In this lab‚ you will use the Blackbody Spectrum Simulation to investigate how the spectrum of electromagnetic radiation emitted by objects is affected by the object’s temperature. In this simulation‚ you can input the temperature and observe the spectrum of the radiation emitted. a) The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star‚ we can tell something
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refracted through a prism‚ different colors of the visible light spectrum were visible. Herschel hypothesized that each one of the colors contained a different temperature. When he measured each separate color‚ he discovered that each one had a different temperature. Herschell also discovered that the temperatures increased from the violet to the red part of the color spectrum. He also discovered that when he went above the red spectrum‚ a color not visible to the human eye‚ that the temperature increased
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not visible to humans yet are visible to some insects. UV rays get their name from electromagnetic waves which frequencies are higher than those that humans can identify as the colour violet. Although ultraviolet radiation is invisible to the human eye‚ a lot of people are aware of the effects of UV rays in tanning beds and the sun through sunburn and skin cancer. -Wikipedia The electromagnetic spectrum‚ this picture demonstrates the approximate wave length‚ colours of the rays‚ the
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Sunlight and Concave Mirror for Cooking Researchers: Pamatmat‚ Mikaela Franchesca Siacon‚ Maria Sherlene Dianne Cruz‚ Jeremy Anne Lardizabal‚ Zaree Dominique Macagba‚ Danielle Martinez‚ Kyrene Teacher: Sir Vincent Sabong Abstract The researchers thought of trying to come up with a makeshift solar cooker in order to test if this way of cooking may be effective and useful in substituting for a frying pan and a stove. The solar cooker may be a possible alternative when cooking outdoors under
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information is transferred by use of electromagnetic radiation (EMR). EMR is a form of energy that reveals its presence when it strikes the matter. Remote Sensing has a sensor which can detect the electromagnetic radiation coming from an object. Remote Sensing data also enables direct observation of the land surface or any other objects at repetitive intervals and therefore allow monitoring the changes occurring in it through aerial or satellite sensor. Electromagnetic Radiation: Emission of EMR (Electro-Magnetic
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The electromagnetic spectrum consists of seven different waves. The waves are in the order of how big the wavelength is and its frequency‚ from the biggest to the smallest: Radio waves‚ Micro waves‚ Infrared‚ Visible light‚ Ultra Violet‚ X-rays and Gamma rays. Each of them has their own special use in everyday life. For example‚ to turn on a TV you need to use Radio waves‚ to heat your food you use Microwaves and X-rays are used to look into people’s bodies. Some waves‚ like Radio waves can be as
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