A new circuit realization of X-band transmit-receive switch is proposed that is based on a PHEMT-controlled stub directional coupler. The operation of the switch is analyzed. The impedances of the stubs are optimized to yield a considerably larger bandwidth of the switch. It is shown that the circuit can serve as a building block for multithrow switches.
Russian Microelectronics – Springer Journals
Published: Nov 21, 2006
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