Dual-Mode Reconfigurable Filter With Asymmetrical Transmission Zeros and Center Frequency Control
作者： C. Lugo , J. Papapolymerou
关键词: Passband 、 Automatic frequency control 、 Pole–zero plot 、 Control theory 、 Physics 、 X band 、 Angular displacement 、 Topology 、 Center frequency 、 Band-pass filter 、 Resonator
摘要: A reconfigurable bandpass filter with asymmetrical responses is demonstrated using a dual-mode microstrip resonator. The proposed topology introduces several fixed and switchable perturbations to control the center frequency location of transmission zeros filter. tuning mechanism consists capacitively loading edges modified square patch resonator, in order manipulate current distribution degenerate modes. This operation results ratio 10% at X band, angular zero displacement Deltaomegaz = 3.5rad/s or greater both lower higher side passband
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