Study of wideband microstrip 90&amp;#x00B0; 3-dB two-branch coupler with minimum amplitude and phase imbalance

Wang, Duxiang; Huynh, Allan; Hakansson, P.; Li, Ming; Gong, Shaofang

doi:10.1109/icmmt.2008.4540317

Cited by 8 publications

References 7 publications

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UHF RFID reader front‐end having wideband and stable Tx/Rx isolation characteristic

Jang

Lim

2010

Micro & Optical Tech Letters

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cophase EGC diversity over the other antenna configurations. In addition, comparison between two optimal solutions, the solution from Rician fading provides a slightly better performance than the solution from AWGN. It implies the real propagation behaves closely to Rician rather than AWGN. From all results, the improvement is accomplished if the right antenna configuration is properly designed. Therefore, the proposed method is of important in practice. CONCLUSIONThis article presents both simulation and measurement results of non-cophase EGC diversity technique with four antennas on limited dimension of WLAN terminal-like notebook. Both AWGN and Rician fading channels are considered. This article uses GA method to find the optimal antenna configuration to achieve the best signal quality. By comparing the performances of many antenna configurations, the configuration from optimization method provides the best performance. ACKNOWLEDGMENTSThe authors acknowledge the financial support from Suranaree University of Technology, Thailand. REFERENCES 1. M. Yacoub, Foundations of mobile radio engineering, CRC Press,

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UHF RFID reader front‐end having wideband and stable Tx/Rx isolation characteristic

Jang

Lim

2010

Micro & Optical Tech Letters

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Design and implementation of a UWB six‐port correlator for 6–9 GHz frequency band

Mohsin

Karlsson

Owais

et al. 2012

Micro & Optical Tech Letters

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A compact size six‐port correlator using bandwidth enhancing stubs for the 6–9 GHz ultra wideband radio is presented. The proposed six‐port has a center frequency of 7.5 GHz with 50% relative bandwidth. The correlator is based entirely on microstrip technology for low cost and simple circuit implementation. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:190–193, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27235

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The effect of slotline on the bandwidth performance enhancement of branch line coupler

Abdullah

Seman

2014

2014 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE)

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Study of wideband microstrip 90° 3-dB two-branch coupler with minimum amplitude and phase imbalance

Cited by 8 publications

References 7 publications

UHF RFID reader front‐end having wideband and stable Tx/Rx isolation characteristic

UHF RFID reader front‐end having wideband and stable Tx/Rx isolation characteristic

Design and implementation of a UWB six‐port correlator for 6–9 GHz frequency band

The effect of slotline on the bandwidth performance enhancement of branch line coupler

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