Design of 60-GHz millimeter-wave CMOS RFIC-on-Chip bandpass filter

This paper presents design and implementation of a 60-GHz millimeter-wave RFIC-on-chip bandpass filter with a 0.18-mum standard CMOS process. A planar ring resonator structure with dual transmission zeros was adopted to design this CMOS filter. The die size of the chip is 1.148 times 1.49 mm2. The measured insertion loss of a designed bandpass is less than 5 dB from 59 to 68 GHz. The investigations of sensitivity to the insertion loss and the passband bandwidth for different perturbation stub sizes are also studied. The filter has a 5-dB bandwidth of about 9 GHz at the center frequency of 64 GHz. The measured insertion loss of the passband is about 4.9 dB and the return loss is better than 10 dB within passband.

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