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Ultra wideband matching network design for a V-shaped square planar monopole antenna

Published online by Cambridge University Press:  13 August 2014

Ramazan Köprü ,
Sedat Kilinç ,
Çağatay Aydin ,
Doğu Çağdaş Atilla ,
Cahit Karakuş  and
Binboğa Siddik Yarman
Ramazan Köprü*
Affiliation:
Department of Electrical-Electronics Engineering, Isik University, Sile, Istanbul 34980, Turkey. Phone: +90 216 712 14 60
Sedat Kilinç
Affiliation:
Department of Electrical-Electronics Engineering, Istanbul University, Avcilar, Istanbul 34320, Turkey
Çağatay Aydin
Affiliation:
Department of Electrical-Electronics Engineering, Isik University, Sile, Istanbul 34980, Turkey. Phone: +90 216 712 14 60
Doğu Çağdaş Atilla
Affiliation:
Department of Electrical-Electronics Engineering, Isik University, Sile, Istanbul 34980, Turkey. Phone: +90 216 712 14 60
Cahit Karakuş
Affiliation:
AVEA A.Ş., Umraniye, Istanbul, Turkey
Binboğa Siddik Yarman
Affiliation:
Department of Electrical-Electronics Engineering, Istanbul University, Avcilar, Istanbul 34320, Turkey
*
Corresponding author: R. Köprü Email: ramazan.kopru@isikun.edu.tr
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Abstract

In this paper, design, manufacture, and measurement of a wideband matching network for a broadband V-shaped square planar monopole antenna (V-SPMA) is presented. Matching network design is unavoidable in most cases even vital to facilitate a maximally flat power transfer gain for an antenna. In the work, a bandpass matching network (BPMN) design is done for a particular square monopole antenna with V-shaped coupling element that has essentially bandwidth increasing effect. Designed BPMN and the antenna forms a VSPMA–BPMN matched antenna structure. “real frequency technique” is employed in the BPMN design. BPMN prototype circuit has been constructed on an FR4 laminate with commercial microwave chip inductors and capacitors. Vector network analyzer gain and reflectance measurements of the matched antenna structure have shown highly compatible results to those of the theoretical design simulations along the passband (~0.8–4.7 GHz). Furthermore, newly proposed distributed capacitor–resistor lossy model for microstrip lines used in the BPMN circuit have exhibited that it can successfully mimic the measured gain and reflectance performance of the matched structure in passband and even in stopband upto 8 GHz. Designed structure can be utilized as a one single wideband broadcasting medium suitable for many communication standards such as GSM, 3G, and Wi-Fi.

Keywords

Antenna designModeling and measurementsCircuit design and applications
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 6 , Special Issue 6: Mediterranean Microwave Symposium 2013 , December 2014 , pp. 555 - 564
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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