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I've seen a lot of guys lately trying to save a few bucks on their RF front-ends by skipping the isolator stage in their 5G test rigs. Big mistake. We recently had an intern hook up a mismatched antenna to a high-power SSPA, and without a [Microwave Circulator] in place, the reflected power cooked the output stage in seconds.
If you're building out multi-channel transceiver gear, look for something with [Excellent Isolation] (at least 20dB) and low insertion loss. I've had good luck with some of the broadband Ka-band components from Pindom lately. Their waveguide structures are high-precision, and the typical 0.3 dB loss is negligible for the level of protection you get. It’s basically cheap insurance for your most expensive hardware. Don’t learn the hard way like we did!
If you're building out multi-channel transceiver gear, look for something with [Excellent Isolation] (at least 20dB) and low insertion loss. I've had good luck with some of the broadband Ka-band components from Pindom lately. Their waveguide structures are high-precision, and the typical 0.3 dB loss is negligible for the level of protection you get. It’s basically cheap insurance for your most expensive hardware. Don’t learn the hard way like we did!
