Novel UWB CB-CPW butler matrix for wireless applications

Author

Nedil, Mourad ; El Cafsi, Mohamed Aymen ; Denidni, Tayeb A. ; Gharsallah, Ali

Author_Institution

Univ. du Quebec en Abitibi-Temiscamingue (UQAT), Val-d´Or, QC, Canada

fYear

2014

fDate

6-11 July 2014

Firstpage

1800

Lastpage

1801

Abstract

A novel 4×4 ultra-wideband (UWB) Butler matrix based on using multilayer directional couplers and phase shifters is presented. The use of conductor-backed coplanar waveguide CB-CPW slot technique eliminates the crossovers needed in the conventional planar matrix leading to a significant size reduction and loss minimization. The proposed Butler matrix exhibits couplings and phase errors within -7 ± 1 dB and 11° over the entire bandwidth with a center frequency at 6.85 GHz. This matrix is suitable for ultra wideband communication systems.

Keywords

conductors (electric); coplanar waveguides; directional couplers; matrix algebra; microwave phase shifters; slot antennas; ultra wideband communication; UWB CB-CPW butler matrix; conductor-backed coplanar waveguide CB-CPW slot technique; crossover elimination; frequency 6.85 GHz; loss minimization; multilayer directional couplers; phase errors; phase shifters; size reduction; ultra wideband communication systems; wireless applications; Butler matrices; Directional couplers; Ultra wideband technology; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6905226

Filename

6905226