Antenna system of a radio microphone
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United States of America Patent
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Feb 28, 2017
Grant Date -
Jun 4, 2015
app pub date -
Nov 28, 2014
filing date -
Nov 28, 2013
priority date (Note) -
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Abstract
The invention concerns an antenna system of a radio microphone that includes an antenna path starting at an in port and ending at an out port along with an amplifier and a radio frequency (RF) cable. In order to compensate for various cable attenuations, an attenuator is provided in series with a variable slope compensator between the amplifier and the RF cable. In order to avoid a negative effect on a large signal behavior of variable slope compensators, field effect transistors (FETs) or pin diodes are used for switching of the resistances so that a large signal behavior is achieved.
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