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Is the highest isolation SPDT RF Switch in 3-6 GHz range the ADRF5021? (65 dB at 5 GHz)

Needed specs
Frequency range: 3 - 6 GHz
Insertion loss < 3 dB
Isolation RFc to RF1 & RF2 > 60 dB at 3 - 6 GHz
Switching speed can be very slow, i.e. in the order of seconds.. My application isn't very standard!
Any advice welcome. I wondered if there's a left-field solution given I don't need fast switching..