TRANSMISSION/RECEPTION SWITCHING CIRCUIT AND WIRELESS COMMUNICATION TERMINAL
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United States of America Patent
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Issued Date -
Feb 1, 2024
app pub date -
Oct 28, 2021
filing date -
Dec 23, 2020
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Abstract
Performance is improved in a wireless communication terminal in which an antenna is connected to a transmission circuit and a reception circuit. A transmission/reception switching circuit includes a first N-type transistor and a second N-type transistor. The first N-type transistor has a drain connected to the antenna and a gate to which a constant voltage is applied. Furthermore, the second N-type transistor has a drain connected to a source of the first N-type transistor and a gate to which a transmission signal is input. Furthermore, the second N-type transistor supplies a reception signal from one of a source and the drain.
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