| Summary: | 碩士 === 華梵大學 === 電子工程學系碩士班 === 105 === In this paper, we propose a coupled-line architecture with a short-circuit coupled-side architecture and an anti-side short-circuit and capacitor to replace the 3λ/4 and λ/4 microstrip lines in a Hybrid Ring Coupler. Which is similar to the frequency response of the filter, and then by capacitive compensation design to optimize the frequency response, we will use the literature mentioned in the past, the theoretical concept applied to the circuit structure of this paper, and finally we will use The FR4 plate is easy to be obtained as a substrate, and the four-layer stack is planned to realize the circuit of this thesis. After the layout circuit is simulated and the frequency response of the ideal circuit is matched. And finally to the implementation of the circuit and the measurement, and its implementation of the circuit frequency response and the layout of the circuit to match the frequency response to match.
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