Theoretical and experimental investigation of parasitic effects in double-Y baluns

Author

Jokanovic, Branka ; Kolundzija, Branko ; Marincic, Aleksandar

Author_Institution

IMTEL, Novi Beograd, Yugoslavia

Volume

1

fYear

1999

fDate

1999

Firstpage

206

Abstract

Effects limiting the bandwidth of CPW_FGP-CPS double-Y baluns are investigated both theoretically, using 3D electromagnetic simulators and experimentally. Analysis shows two kinds of parasitic effects: (a) parasitic effects that depend on input transmission lines and they are caused by: (a) even mode and parasitic balanced mode (PBM) and (b) parasitic effects that depend on open and short circuited stubs forming the double-Y balun and they are observed in both regular mode and PBM. This theory has been experimentally proven and it enables to predict the frequency of parasitic resonances that appear in the characteristics of CW_FGP-CPS baluns and shift them out of the operating frequency bandwidth by changing the physical dimensions of the balun

Keywords

baluns; coplanar transmission lines; coplanar waveguides; method of moments; strip lines; waveguide theory; 3D electromagnetic simulators; CPW_FGP-CPS double-Y baluns; double-Y baluns; even mode; frequency; input transmission lines; open circuited stubs; operating frequency bandwidth; parasitic balanced mode; parasitic effects; parasitic resonances; physical dimensions; regular mode; short circuited stubs; Bandwidth; Circuit simulation; Dipole antennas; Distributed parameter circuits; Frequency; Impedance matching; Moment methods; RLC circuits; Resonance; Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on

Conference_Location

Nis

Print_ISBN

0-7803-5768-X

Type

conf

DOI

10.1109/TELSKS.1999.804728

Filename

804728