Presentation on Applications of microwave

Applications of Microwave

1. Welcome to our presentation

2. A Presentation on Application Of Microwave

3. Submitted to: Arnob Saha Lecturer, Department of EEE Daffodil International University Submitted By: A.k.m Muhit Hasan 162-33-3346 Md. Atikur Rahman 162-33-3470 Hasan Al Momen Onagh 162-33-3427 Md. Morshedul Hasan 162-33-3480 Md. Moshfiqur Rahman 162-33-3491 Jannatul Ferdoush 162-33-3492 Md. Atikul Islam 162-33-3507 Md. Tanjin Ahmad 162-33-3508

4. Microwave Microwaves are radio waves radio waves with wave lengths ranging from as long as one meter to as short as one millimeter, or equivalently, with frequencies between 300 MHz (0.3 GHz) and 300 GHz.

5. Applications of microwave The application areas are many can be categories in different ways.  Telecom Point-to-point communication, Satellite Cellular access technologies Space Sensing/Spectroscopy, Communication, Radio astronomy Medi -Tech Diagnostics, imaging, and treatment applications. Defense Security Car avoidance radar, Traffic surveillance, Air traffic security “cameras” Navigation, Positioning & Measurement GPS Communication Radar

6.  use microwaves for satellite communications Microwaves and radio waves are used to communicate with satellites. Microwaves pass straight through the atmosphere and are suitable for communicating with distant geostationary satellites, while radio waves are suitable for communicating with satellites in low orbit . Radio waves have longer wavelengths and are reflected by the  ionosphere ( part of the Earth’s atmosphere). Microwaves have shorter wavelengths and pass through the Earth’s atmosphere.

7. use of microwave in tele-communication A microwave link is a communications system that uses a beam of radio waves in the microwave frequency range to transmit video, audio, or data between two locations, which can be from just a few feet or meters to several miles or kilometers apart. Modern Microwave Links can carry up to 400Mbps in a 56MHz channel using 256QAM modulation and IP header compression techniques.  Operating Distances for microwave links are determined by antenna size (gain), frequency band, and link capacity.  

8. use of microwave in cellular access technology Cellular networks are provided by mobile phone service carriers. Each one has their own. The network is made up of individual cells emitting radio frequencies through a certain area. If you are within that area, and use that individual carrier, you will be able to pick up that cell signal. The carriers license their service of cell towers with different strengths, whether they’re 3G or something else. If you have a mobile device that allows for that strength of cell service, and you’re in an area that provides it, you’ll be able to pick up its transmitted radio waves.

9. Microwave wireless communication Microwave wireless communication  is an effective type of communication, mainly this transmission uses radio waves, and the wavelengths of radio waves are measured in centimeters. In this communication, the data or information can be transfers using two methods. One is satellite method and another one is terrestrial method.

10. Radio Radio waves are electromagnetic waves within the frequencies 30KHz - 300GHz, and include microwaves.  Microwaves are at the higher frequency end of the radio wave band and low frequency radio waves are at the lower frequency end. Microwaves are  electromagnetic waves  with frequencies between 300MHz (0.3GHz) and 300GHz in the electromagnetic spectrum.

11. Radar Radar  is a detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect  aircraft, ships,  spacecraft,  guided missiles,  motor vehicles, weather formations, and terrain. A radar system consists of a  transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna and a receiver and processor to determine properties of the object(s). Radio waves from the transmitter reflect off the object and return to the receiver, giving information about the object's location and speed.

12. Use of microwave in Medical technology Important use of microwave energy in medicine is for the thermal ablation of tissue. In this application microwave energy is used to create localized dielectric heating (diathermy) resulting in controlled destruction of tissue.

13. GPS The Global Positioning System works by having each of the 21 active satellites constantly radiate microwaves . These microwaves are received by the GPS  receiver, which can use the method of ranging to locate its position. At some known time a satellite emits a signal in the form of microwaves.

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