600 GHz InP HBT frequency multiplier

A 600 GHz monolithic frequency multiplier circuit fabricated using 0.25 μm InP HBT (heterojunction bipolar technology) technology is reported. The multiplier uses two 6 μm finger devices in common-base push–push configuration to obtain extremely simple matching networks. Measurements using on-wafer RF probes indicate maximum output power of −8.3 dBm at 590 GHz with a wide operation bandwidth of better than 50 GHz.

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