Filtering structure CMOS distributed amplifier with extended flat bandwidth and improved input matching using coupling inductors in the gate line

Author

Rastegar, Habib ; Saryazdi, Saeed ; Hakimi, Ahmad ; Talebi, Siamak

Author_Institution

Dept. of Electr. Eng., Shahid Bahonar Univ. of Kerman, Kerman, Iran

fYear

2012

fDate

15-17 May 2012

Firstpage

41

Lastpage

45

Abstract

In this paper, we present a design method of bandwidth enhancement for Distributed Amplifiers (DAs), by using filter structures. Instead of using classical constant-k section in conventional DA we use both Chebyshev and Butterworth filters in both transmission lines in order to form respectively the gate and drain transmission lines of the new DA. In order to improve the bandwidth, the filter structure and series-peaking inductor are used. The complete designed circuit was implemented in TSMC 0.13μm CMOS technology. The simulated results provide 15dB as gain, the bandwidth is 14GHz. The input/output return loss is -10dB, the IIP3 is 5.66 dBm at 6.7 GHz.

Keywords

Butterworth filters; CMOS analogue integrated circuits; Chebyshev filters; MMIC amplifiers; distributed amplifiers; field effect MMIC; filtering theory; inductors; microwave filters; transmission lines; Butterworth filters; Chebyshev filters; TSMC CMOS technology; bandwidth 14 GHz; bandwidth enhancement design method; coupling inductors; drain transmission lines; extended flat bandwidth; filtering structure CMOS distributed amplifier; frequency 6.7 GHz; gain 15 dB; gate line; gate transmission lines; improved input matching; loss -10 dB; series-peaking inductor; size 0.13 mum; Bandwidth; Chebyshev approximation; Equations; Integrated circuits; Matched filters; Mathematical model; Microwave filters; Butterworth filter; CMOS Distributed Amplifier; Chebyshev filter; Mderive; Series-peaking inductor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2012 20th Iranian Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4673-1149-6

Type

conf

DOI

10.1109/IranianCEE.2012.6292319

Filename

6292319