For two way communication, the same antenna can be and often is used for both transmission and reception. This is possible because any antenna transfer energy from the surrounding environment to its input receiver terminals with the same efficiency that it transfers energy from the output transmitter terminal into the surrounding environment,
assuming that the same frequency is used in both directions. Put another way. Antenna way, antenna way, antenna characteristics are essentially the same whether an antenna is sending or receiving electromagnetic energy.
No comments:
Post a Comment