Design of ultra wideband 3DB quadrature microstrip/slot coupler | Zendy

Abbosh A. M. | Zendy; Bialkowski M. E. | Zendy

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Design of ultra wideband 3DB quadrature microstrip/slot coupler

Author(s) -

Abbosh A. M.,

Bialkowski M. E.

Publication year - 2007

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.22674

Subject(s) - microstrip , ground plane , magic tee , return loss , rat race coupler , hybrid coupler , microwave , strips , wideband , engineering , broadside , power dividers and directional couplers , electrical engineering , electronic engineering , physics , optics , telecommunications , materials science , antenna (radio) , composite material

This article presents the configuration and design method of a compact ultra wideband 3dB quadrature coupler employing a microstrip/slot technology. The proposed device uses two substrates with a common ground plane. It is formed by two identical multisection elliptical conducting strips, which are broadside coupled through a multisection elliptical slot in the ground plane. Results of simulation and measurements show that the coupler exhibits a coupling equal to 3 ± 1 dB for the band 2.3–12.3 GHz. The isolation and return loss are better than 23 dB across that band. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2101–2103, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22674

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