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http://dx.doi.org/10.6109/jkiice.2022.26.8.1188

Wideband 6-port Phase Correlator Using Caxial Cable Impedance Transformer and Wireline Coupler  

Park, Ung-hee (Department of Electronic Engineering, Kangwon University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.26, no.8, 2022 , pp. 1188-1195 More about this Journal
Abstract
The 6-port phase correlator consists of one in-phase power divider and three 3-dB 90-degree phase difference power dividers, and is mainly used in a demodulation circuit that determines the phase of an input signal. This paper proposes the wideband 6-port phase correlator that consists of an in-phase power divider using a wideband 2:1 impedance transformer with three 37.5-Ω coaxial cables, and a 3-dB 90-degree phase difference power divide using Wireline. The proposed wideband phase correlator fabricated at a center frequency of 1000MHz has the value of the input reflection coefficient(S11 and S22) -14dB or less in the frequency range of 640~1270MHz. Also, the signal transmission characteristic(Si1), from the in-phase power divider input port to four output ports, has the amplitude of -6.5±0.6dB and the phase error of within ±3.4°, and the signal transmission characteristic(Si2), from the 90 degree phase difference power divider input port to four output ports, has the amplitude of -6.1±0.6dB and the phase error of within ±6.2°.
Keywords
6-port phase correlator; Phase correlator; Coaxial impedance transformer; Branchline coupler; Wireline power divider;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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