Mini-Circuits’ ZV47-K44+ is an envelope detector that covers a wide RF input bandwidth from 500 MHz to 43.5 GHz. The output is a baseband voltage proportional to the instantaneous amplitude of the RF input signal, with power range from -30 to +15 dBm. It comes in a compact, gold over nickel plated brass alloy case (0.84 x 0.96 x 0.37″) with 2.92mm RF connectors.