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Antenna Working Principle

  • 2013-09-29
  • 32.5KB
  • Points it Requires : 1

              Antenna working principle Antenna working principle, classification, bandwidth, direction basic knowledge Q&A | || ||2006-07-23 16:53:43 Safety and Electromagnetic Compatibility Network Source: Author: || ||[pic][pic] ||(1) What is the working principle and function of the antenna? || Answer: As an indispensable part of wireless communication, the basic function of the antenna is to radiate and receive radio waves. When transmitting, it converts high-frequency current into electromagnetic waves; when receiving, it converts electromagnetic waves into high-frequency current. ||Antenna: Mutual conversion between electromagnetic waves and high-frequency current Q9s Safety and Electromagnetic Compatibility Network || (2) How many types of antennas are there? Q9s Safety and Electromagnetic Compatibility Network || ||Answer: There are many types of antennas, which can be mainly classified in the following ways: According to their use, they can be divided into base station antennas and mobile portable antennas. According to the working frequency band, they can be divided into ultra-long wave, long wave, medium wave, short wave, ultra-short wave and microwave; according to their direction, they can be divided into omnidirectional and directional antennas; Q9s Safety and Electromagnetic Compatibility Network || (3) How to choose an antenna...             

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