Compact Ka band filter in 0.13 µm CMOS using broadside coupled coplanar stripline

Author

Taslimi, Amir ; Mouthaan, K.

Author_Institution

Nat. Univ. of Singapore, Singapore, Singapore

fYear

2013

fDate

6-8 Oct. 2013

Firstpage

29

Lastpage

32

Abstract

A K_a band bandpass filter in 0.13 μm CMOS is presented. Good out-of-band rejection and a good shape factor are facilitated by the use of broadside coupled coplanar stripline (BCCPS). The filter consists of a BCCPS section, coplanar striplines (CPS), and MIM capacitors. We derive the characteristic impedance and effective dielectric constant of the BCCPS in CMOS and apply it to the design of the bandpass filter. The realized filter has a measured 3 dB bandwidth from 25.5 GHz to 31.6 GHz (21%). The measured insertion loss is 6.9 dB and the size is 0.6 × 0.3 mm² excluding pads. The filter rejection below 18 GHz and above 41 GHz is better than 35 dB.

Keywords

CMOS integrated circuits; band-pass filters; coplanar waveguides; permittivity; strip lines; BCCPS; CMOS; MIM capacitor; bandwidth 25.5 GHz to 31.6 GHz; broadside coupled coplanar stripline; characteristic impedance; compact Ka bandpass filter; dielectric constant; insertion loss; out-of-band rejection; shape factor; size 0.13 micron; Band-pass filters; CMOS integrated circuits; Dielectric constant; Filtering theory; Insertion loss; Microwave filters; Resonator filters; CMOS bandpass filter; broadside coplanar; selectivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuits Conference (EuMIC), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6687777