Automatic Self-Powered Antenna Switch
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United States of America Patent
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N/A
Issued Date -
Jul 31, 2014
app pub date -
Jan 30, 2013
filing date -
Jan 30, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An antenna switch is provided, comprising: an antenna cable connector that connects to a radio RF output port that both receives an RF signal at a receive frequency, and transmits an RF signal at a transmit frequency that differs from the receive frequency; an RF switch having a common contact that is switchable between a receive antenna contact and a transmit antenna contact; a level comparator comprising an input connected to the antenna cable that: when a voltage at the input is below a predefined threshold value, causes the RF switch to contact the receive antenna; and when the voltage at the input is above a predefined threshold value, causes the RF switch to contact the transmit antenna.
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