Accepting an input frequency from 0.85 GHz to 8.0 GHz, the Crystek Pocket Passive Doubler (CPPD) series of frequency multipliers from Crystek Microwave feature an input drive level of 10 dBm to 20 dBm with a typical conversion loss of 15 dB for the CPPD-0.85-2.0 and 13 dB for the CPPD-2-4. Maximum output power rating for the CPPD line is 27 dBm, with an operating temp. of -40°C to 85°C and a storage temp. of -55°C to 100°C. From $31.29.