Abstract
In this paper, we present high performance quadruple sub-harmonic mixers for millimeter-wave applications. The sub-harmonic mixer was designed by using 0.1 μm GaAs PHEMT's and the coplanar wave-guide library. We show the low conversion loss of 5.8dB at a local oscillator (LO) power of 13dBm from the fabricated sub-harmonic mixers. The V-band sub-harmonic mixer also ensure a high degree of isolation showing −75.0dB in the LO-to-IF and −48.1dB in the LO-to-RF at a frequency of 14.5GHz, respectively. The fabricated V-band sub-harmonic mixer has a lower conversion loss characteristics compared with ever reported mixers for millimeter frequencies.
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