Dual-Band Rectangular Patch Hybrid Coupler

Dual-Band Rectangular Patch Hybrid Coupler

This paper presents, for the first time, the design of a rectangular patch hybrid coupler that can operate at two arbitrary frequency bands with the same quadrature phase relation between the two outputs. The design procedure of the hybrid coupler is presented. For demonstration, a dual-band rectang...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2008-07, Vol.56 (7), p.1721-1728
Hauptverfasser: Shao Yong Zheng, Shao Yong Zheng, Sai Ho Yeung, Sai Ho Yeung, Wing Shing Chan, Wing Shing Chan, Kim Fung Man, Kim Fung Man, Shu Hung Leung, Shu Hung Leung, Quan Xue, Quan Xue
Format: Artikel
Sprache:eng
Schlagworte:
3-dB hybrid coupler
Applied sciences
Bands
Bandwidth
Circuit properties
Coupling circuits
Dual band
Dual-band hybrid coupler
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Frequency bands
Frequency measurement
Impedance
Joining
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwaves
Narrowband
Phased arrays
Quadratures
rectangular patch hybrid coupler
stub loaded
Transmission lines
Wireless LAN
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Beschreibung
Zusammenfassung:This paper presents, for the first time, the design of a rectangular patch hybrid coupler that can operate at two arbitrary frequency bands with the same quadrature phase relation between the two outputs. The design procedure of the hybrid coupler is presented. For demonstration, a dual-band rectangular patch hybrid coupler is designed to operate in the 2.4- and 5-GHz bands corresponding to the IEEE 802.11 a/b/g bands. The measured result shows 9.3% and 18.2% bandwidth for the lower and upper frequency bands.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2008.925234