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Miniature 60-GHz-band bandpass filter with 2.55-dB insertion-loss using standard 0.13 µm CMOS technology

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4 Author(s)
Mei-Ching Lu ; Department of Electrical Engineering, National Chi Nan University, Puli, Taiwan, R.O.C. ; Jin-Fa Chang ; Li-Chun Lu ; Yo-Sheng Lin

In this paper, we demonstrate a miniature low-insertion-loss 60-GHz-band bandpass filter by standard 0.13 mum CMOS technology. Low-insertion-loss is achieved by adopting thick microstrip-line (MSL) with optimized ground-plane pattern as the needed inductors to minimize the metal and substrate loss. This filter achieved insertion-loss (1/S21) lower than 3 dB over the frequency range of 56.9-68.6 GHz, input return loss (S11) better than -10 dB over the frequency range of 53.4-71.9 GHz, and output return loss (S22) better than -10 dB over the frequency range of 53.2-70.9 GHz, and small group-delay-variation of plusmn3.25 ps over the frequency range of 52-72 GHz.The minimum insertion-loss was 2.55 dB at 62.5 GHz. To the authors' knowledge, this is the best result ever reported for a 60-GHz-band CMOS bandpass filter in the literature. The chip area was only 0.175times0.194 mm2, i.e. 0.034 mm2, excluding the test pads.

Published in:

VLSI Design, Automation and Test, 2009. VLSI-DAT '09. International Symposium on

Date of Conference:

28-30 April 2009