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Use a SPDT RF switch as a SPST

Question asked by brightpeng on Oct 28, 2016
Latest reply on Oct 31, 2016 by brightpeng

I am trying to use a SPDT RF switch ( HMC547ALP3). As shown below in the datasheet and truth table,  it seems that A and B can be used to control RF1 and RF2, respectively. I only need to use one channel to switch between signal and GND.  So can I just control A or B and tied the other to low?

This will change this SPDT to a SPST. But I cannot find a SPST switch with a high bandwidth (20GHz). This switch is probably the best option for me. 

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