Balance-Compensated Asymmetric Marchand Baluns on Silicon for MMICs

Author

Geliang Yang ; Zhigong Wang ; Zhiqun Li ; Qin Li ; Faen Liu

Author_Institution

Eng. Res. Center of RF-ICs & RF-Syst., Nanjing, China

Volume

24

Issue

6

fYear

2014

fDate

Jun-14

Firstpage

391

Lastpage

393

Abstract

The balance compensating techniques for asymmetric Marchand balun are presented in this letter. The amplitude and phase difference are characterized explicitly by S₂₁ and S₃₁, from which the factors responsible for the balance compensating are determined. Finally, two asymmetric Marchand baluns, which have normal and enhanced balance compensation, respectively, are designed and fabricated in a 0.18 μm CMOS technology for demonstration. The simulation and measurement results show that the proposed balance compensating techniques are valid in a very wide frequency range up to millimeter-wave (MMW) band.

Keywords

CMOS integrated circuits; MMIC; baluns; CMOS technology; MMICs; MMW band; asymmetric Marchand baluns; balance compensating techniques; enhanced balance compensation; millimeter-wave band; normal balance compensation; phase difference; size 0.18 mum; CMOS integrated circuits; CMOS technology; Impedance matching; Insertion loss; Layout; Loss measurement; MMICs; Asymmetric; CMOS; balance compensation; balun; millimeter-wave;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2014.2313719

Filename

6784513