Input Match and Output Balance Improvement of Marchand Balun With Connecting Line

Author

Piekarz, Ilona ; Sorocki, Jakub ; Gruszczynski, Slawomir ; Wincza, Krzysztof

Author_Institution

AGH Univ. of Sci. & Technol., Cracow, Poland

Volume

24

Issue

10

fYear

2014

fDate

Oct. 2014

Firstpage

683

Lastpage

685

Abstract

A novel method allowing for improvement of input match and output balance of Marchand balun with connecting line has been presented. The proposed compensation technique together with the ideal Marchand balun design formulas allow for achieving an arbitrary impedance transformation ratio even for the circuit having a long connecting line. The theoretical analysis has been verified by EM simulations and measurements of a Marchand balun composed of 3 dB coupled-line sections and 30° transmission line operating at the center frequency f 0 = 1.15 GHz and terminated at input and outputs with 50 Ω and 100 Ω, respectively.

Keywords

baluns; compensation; transmission lines; EM simulations; arbitrary impedance transformation ratio; compensation technique; connecting line; coupled-line sections; frequency 1.15 GHz; ideal Marchand balun design formulas; input match; output balance improvement; transmission line; Bandwidth; Impedance; Impedance matching; Joining processes; Power transmission lines; Transmission line matrix methods; Transmission line measurements; Balun; Marchand balun; compensation technique;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2014.2342886

Filename

6870669