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Quadrature coupler with enhanced coupling bandwidth and DC isolation for C-band applications
Nagisha V., Nivesha V.,
Published in Institute of Electrical and Electronics Engineers Inc.
2020
Pages: 626 - 629
Abstract
This paper presents an alternate design for a conventional 3dB Branch line coupler (Quadrature Coupler) for C Band applications. The proposed coupler is designed for 5.2GHz. The proposed coupler has parallel-coupled lines at the port of conventional 3dB coupler with slotted ground plane. The novel design of the coupler allows 82.6\% of bandwidth improvement with DC(Direct Current) isolation. The designs have been simulated and fabricated on FR4 dielectric substrate and measured using Vector Network Analyzer. Simulated and fabricated results of the S-parameters are presented. © 2020 IEEE.
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Published in Institute of Electrical and Electronics Engineers Inc.
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