Can the ADRF5031 RF switch be used above its specified 20 GHz maximum frequency, and are there more suitable alternatives for an SPDT switch with a bandwidth of 20 MHz to 25 GHz and a maximum CW power of +28 dBm?

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Accepted Answer

We often include plots of device operation that go beyond the specified frequency range for informational purposes. When we release a device like this, we make a call on what to set as the max specified frequency. In this case, it happens to be the frequency at which the insertion loss starts to exceed -1dB. Operation beyond 20 GHz is not guaranteed. So while it's unlikely to happen, if you bought an ADRF5031 device from us that turned out to have an insertion loss of -1dB at 20 GHz and -1.75 dB at 25 GHz, we would call that device spec-compliant. ADRF5023 costs more because it is specified to operate to 40 GHz. Also, its typical insertion loss at 25 GHz is a few tenths of a dB better than ADRF5031.

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ADRF5031 : FAQ