Switchable microwave filter – inside a HP 83732B

Thanks to a kind friend, a few pictures of the 83732B (and 83711) internals. The 83732B is a pretty nice 20 GHz +10 dBm synthesizer, and still not cheap – about 5~10 kUSD for a good used unit.


83732b filter 1

Below, you can clearly see the set of bandpass filters, and the signal routed to one at a time, selected by appropriate bias conditions.

83732b filter 2

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