Design of On-Chip Edge-Coupled Resonator and Its Application for Bandpass Filter in CMOS Technology

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Conference Proceeding
ISCIT 2018 - 18th International Symposium on Communication and Information Technology, 2018, pp. 137 - 140
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© 2018 IEEE. In this work, the design of a compact on-chip edge-coupled resonator is presented. To understand the insight of the presented resonator, a simplified LC-equivalent circuit model is provided, and electromagnetic simulation is utilized for performance optimization. To demonstrate the potential of the presented resonator, a bandpass filter design example is also given. By taking advantage of using metal-insulator-metal capacitors, a compact filter can be designed. For proving of concept, both the presented resonator and filter are implemented and fabricated using standard CMOS technology. A good agreement between simulation and measurement has been achieved. The measured results show that the filter has a resonance at 35.4 GHz with an insertion loss of 1.7 dB and greater than-10 dB of return loss. The miniaturized chip area of both the resonator and the BPF, excluding the pads, is only 0.039 mm 2 (0.15 × 0.26 mm 2 ).
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