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Design of a complex ratio measuring unit using enhanced branch-line coupler for wireless communication applications

Mohd. Shukor, Nor Azimah and Seman, Norhudah (2015) Design of a complex ratio measuring unit using enhanced branch-line coupler for wireless communication applications. Jurl Teknologi, 77 (10). pp. 61-67. ISSN 1279-696

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Abstract

This article presents the complex ratio measurement unit (CRMU) design formed by enhanced 3-dB branch-line couplers (BLCs), which are placed symmetrically. The first CRMU is formed by four wideband 3-dB BLCs implementing Defect Ground Structure (DGS) and stub impedance techniques that operate over the frequency of 2.5 to 4 GHz. Meanwhile, the other CRMU is formed by four reduced size of enhanced two-section microstrip-slot BLCs with tight coupling of 3-dB over frequency of 2 to 5 GHz. The performances of the CRMU designs are observed and analyzed. The BLCs and CRMUs are designed using CST Microwave Studio. While, the S-parameter performances of the CRMUs are analyzed using Keysight’s Advanced System (ADS) software.

Item Type:Article
Subjects:A General Works
ID Code:58236
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:15 Sep 2017 12:27

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