Modelling of mutual coupling in microstrip antenna arrays fed by microstrip line

Author

Kosowski, Mariusz ; Zieniutycz, Wlodzimierz

Author_Institution

Dept. of Microwave & Antenna Eng., Gdansk Univ. of Technol., Poland

Volume

2

fYear

2004

fDate

17-19 May 2004

Firstpage

513

Abstract

The results of modelling of coupling between the rectangular microstrip patches in linear array are presented. The equivalent circuit in form of a combination of the transmission lines stubs is proposed. It is shown that such circuit well represents mutual coupling in narrow frequency band (4%). Two linear arrays were designed to verify the theory: first which includes proposed equivalent circuit and second one without the coupling (reference array). The results of measurements of VSWR and the radiation pattern are presented and compared with theory.

Keywords

antenna feeds; antenna radiation patterns; electromagnetic coupling; linear antenna arrays; microstrip antenna arrays; microstrip lines; transmission lines; VSWR measurement; antenna radiation pattern; mutual coupling; patch linear antenna array; rectangular microstrip antenna array; transmission lines stub; voltage standing wave ratio; Coupling circuits; Distributed parameter circuits; Equivalent circuits; Frequency; Linear antenna arrays; Microstrip antenna arrays; Microstrip antennas; Mutual coupling; Transmission line measurements; Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwaves, Radar and Wireless Communications, 2004. MIKON-2004. 15th International Conference on

Print_ISBN

83-906662-7-8

Type

conf

DOI

10.1109/MIKON.2004.1357079

Filename

1357079