The inductor and 68pF looks like they are used for matching the input to 75 ohms, and the 470pF is used as a DC block. Are you having sensitivity problems with the switch?

At the high end of the UHF the 470pF or 1000pF will be past resonance, so it will look like an inductor. It should still be a low impedance so any loss should be low.


Edited by Folsom (08/10/2009 23:36)