From CST - Computer Simulation Technology

Impedance matching is an essential part of antenna design. The input impedance of an antenna needs to be reasonably close to the amplifier impedance (e.g. 50 Ohm), otherwise the signal is reflected back to the amplifier and not radiated by the antenna.

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Topics of Interest

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4.1 Introduction Selecting the antenna coupling circuit to optimize the NF can be one of the most important choices in receiver design. Over the frequency range with which we are concerned, the...