A diode for RF power meter (1.8-470MHz, 100W)

[gf]

Below the current through the diodes and the capacitor (red) at 450MHz.

150mA_pp - that's quite a bit of current. Or about 3.5W reactive power if I'm not wrong.
And I guess also ~100...200mW (?) real power, heated by the diodes.
That's not so little for the fact that it's "just a high-Z detector"

[iMo]

From the simulation: With my max output powers
35W at 432MHz     Idiodes = 32.6mA rms
50W at 145MHz     Idiodes = 12.1mA rms
100W at 50MHz     Idiodes =   5.5mA rms
155W at 3.75MHz  Idiodes =   0.5mA rms