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The Double Balance Mixer Design with the Characteristics of Low Intermodulation Distortion, and Wide Dynamic Range with Low LO-power using InGaP/GaAs HBT Process  

S. H. Lee (RFIC Center Kwangwoon University)
S. S. Choi (RFIC Center Kwangwoon University)
J. Y. Lee (RFIC Center Kwangwoon University)
J. C. Lee (RFIC Center Kwangwoon University)
B. Lee (RFIC Center Kwangwoon University)
J. H. Kim (RFIC Center Kwangwoon University)
N. Y. Kim (RFIC Center Kwangwoon University)
Y. H. Lee (Knowledge＊ON Inc)
S. H. Jeon (Knowledge＊ON Inc)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.14, no.9, 2003 , pp. 944-949 More about this Journal
Abstract
In this paper, the double balance mixer(DBM) for Ku-band LNB using InGaP/GaAs HBT process is suggested for the characteristics of low DC power consumption, low noise figure, low intermodulation distortion and wide dynamic range. The 5 dB conversion gain, 14 dB NF, bandwidth 17.9 GHz and 50.34 dBc IMD are obtained under RF input power of -23 dBm, with bias condition as 3 V and 16 mA. The linearity of InGaP/GaAs HBT, the broad band input matching scheme and the optimization of bias point result in the low IMD, the broad bandwidth and the low power consumption characteristics.
Keywords
Mixer; Double Balance Mixer, DBM; Low IMD; Ku-band; InGaP; GaAs; HBT; Low LO-Power;
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