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Computationally efficient design optimization of dualband microstrip couplers is demonstrated using an adaptive response scaling (ARS) technique. ARS allows for constructing a fast surrogate of the high-fidelity EM-simulation model of the coupler structure under design using its equivalent circuit as an underlying low-fidelity model. ARS relies on nonlinear frequency/amplitude response scaling that...
In this paper, we propose a frequency division technique for transferring wireless powers simultaneously to two receivers. The network is composed of one transmitter and two receivers, with three matching networks to match the two loading coils to the source at two different frequencies. The application scenario and the corresponding circuit model are presented. An illustrative example is finally...
This paper presents a dimensional synthesis method for the design of symmetric wideband waveguide cross-coupled filters without resorting to global full-wave optimization. In this method, we propose two circuit models suitable for the synthesis of wideband cross-coupled filters. Besides, we propose a novel physical realization of the cross-coupled K-inverter in the waveguide filter. As a design example,...
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