A Millimeter-Wave CPW CMOS On-Chip Bandpass Filter Using Conductor-Backed Resonators

Author

Yeh, L.-K. ; Chen, C.-Y. ; Chuang, H.-R.

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

31

Issue

5

fYear

2010

fDate

5/1/2010 12:00:00 AM

Firstpage

399

Lastpage

401

Abstract

A novel millimeter-wave 35-GHz bandpass filter using coplanar waveguide structure is fabricated in a 0.18-??m standard complimentary metal oxide semiconductor process. The conductor-backed half-wavelength resonators are utilized to realize stopband characteristics at desired frequencies. A series LC resonant circuit can generate one transmission zero located at 58 GHz. It is also observed that the parasitic effect can create another transmission zero at 80 GHz. Furthermore, the transmission zero at 66 GHz is designed with the use of a shorter conductor-backed resonator. The selectivity of the proposed filter is much improved. Without including the dummy metal, the chip size of the proposed filter is 0.225 ?? 0.55 mm². The good agreement between simulation and measurement is obtained.

Keywords

CMOS integrated circuits; band-pass filters; coplanar waveguides; millimetre wave filters; resonators; system-on-chip; conductor-backed half-wavelength resonators; conductor-backed resonators; coplanar waveguide structure; frequency 35 GHz; frequency 58 GHz; frequency 66 GHz; frequency 80 GHz; millimeter-wave CPW CMOS On-Chip bandpass filter; millimeter-wave bandpass filter; parasitic effect; series LC resonant circuit; size 0.18 mum; standard complimentary metal oxide semiconductor process; stopband characteristics; transmission zero; Bandpass filter (BPF); complimentary metal oxide semiconductor (CMOS); coplanar waveguide (CPW); millimeter wave;

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2010.2043333

Filename

5439768