초록

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Abstract ▼ AI-Helper

This paper presents the design of a broadband hybrid mixer using dual-gate FET topology with a low-pass filter which improves return loss of output to isolate RF and LO signal. The low-pass filter shows the isolation with RF and LO signal of better than 40 dBc from 1.5 GHz to 5.5 GHz. The dual-gate ...

This paper presents the design of a broadband hybrid mixer using dual-gate FET topology with a low-pass filter which improves return loss of output to isolate RF and LO signal. The low-pass filter shows the isolation with RF and LO signal of better than 40 dBc from 1.5 GHz to 5.5 GHz. The dual-gate mixer which has been designed by using cascade topology operates when the lower FET is biased in linear region and the upper FET is in saturation region. The input matching circuit has been designed to have conversion gain from 1.5 GHz to 5.5 GHz. The designed mixer with low-pass filter shows the conversion gain of better than 7 dB from 1.5 GHz to 5.5 GHz at the low LO power level of 0 dBm with the fixed IF frequency of 21.4 MHz.

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