A minaturized broad-band MMIC frequency doubler
A minaturized broad-band MMIC frequency doubler
复制标题
一种小型化宽带MMIC倍频器
DOI:
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发表时间:
1990
期刊:
影响因子:
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通讯作者:
M. Akaike
中科院分区:
文献类型:
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作者:
T. Hiraoka;T. Tokumitsu;M. Akaike
A miniaturized broadband balanced MMIC (monolithic microwave integrated circuit) frequency double, composed of a common-gate FET and a common-source FET directly connected to each drain electrode, has been proposed and demonstrated. The doubler is designed and fabricated as a miniaturized function module using a conventional two-gate FET configuration, active trapping, and active impedance matching. The doubler design has been performed through phase error estimation, gate width optimization, and gate-source voltage optimization. The phase error estimation in a nonlinear condition has eliminated phase error compensation circuits. The fabricated chip size is only 0.5 mm*0.5 mm, which is about 1/10 the area of previously reported doublers. A conversion loss of 8-10 dB, a fundamental frequency suppression better than 17 dB, and an input return loss better than 8 dB are obtained in the output frequency range from 6 to 16 GHz. The broadband doubler as a miniaturized MMIC function module can be applicable to small-size oscillator MMICs and multifunction MMICs. >