A compact butler matrix for WLAN application

descriptionPublicationkeyboard_double_arrow_right Article 14 Jul 2010 English Publisher:WileyJournal:Microwave and Optical Technology Letters, volume 52, pages 2,294-2,298 (issn: 0895-2477, eissn: 1098-2760,

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Authors: Mohsen Maddah‐Ali; Keyvan Forooraghi;

doi: 10.1002/mop.25474

A compact butler matrix for WLAN application

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Abstract

AbstractIn this article, a compact butler matrix for wireless communications is designed and implemented at 2.4 GHz using defected ground structures (DGS).The butler matrix consists of a 3‐dB coupler, crossover (0‐dB coupler), and phase shifter. The 3‐dB coupler and crossover are compacted using T‐model of transmission line and DGS. The size of proposed butler matrix is about 35% of a conventional matrix. To verify simulation results, designed matrix has been implanted and measured. Fortunately, there is very good agreement between simulation results and measured results. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2294–2298, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25474

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Tarbiat Modares University
Iran (Islamic Republic of)

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