An Even Harmonic Mixer Using Self-Biased Anti-Parallel Diode Pair

Mitsuhiro SHIMOZAWA  Takatoshi KATSURA  Kenichi MAEDA  Eiji TANIGUCHI  Takayuki IKUSHIMA  Noriharu SUEMATSU  Kenji ITOH  Yoji ISOTA  Tadashi TAKAGI  

IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.8   pp.1464-1471
Publication Date: 2003/08/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
microwave,  mixer,  harmonic mixer,  anti-parallel diode pair,  self-bias,  

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This paper presents an even harmonic mixer using self-biased anti-parallel diode pair (APDP). A proposed self-biased APDP is composed of a pair of diodes and self-bias series resistors. At high LO injection level, rectified current is generated by the diodes and reverse voltage is applied to the diodes by the self-bias resistor. Therefore, rapid degradation of conversion loss at high LO input level can be avoided. The effect of self-bias resistor is explained by using simplified behavior model and harmonic balance method, and is evaluated by the measurements of an L-band even harmonic type direct conversion mixer.