电子元件与材料2026，Vol.45Issue(3)：296-302,7.DOI:10.14106/j.cnki.1001-2028.2026.1230
新型可重构通带的微带带通滤波器的设计
Design of a novel reconfigurable passband microstrip bandpass filter
摘要
Abstract
To improve the spectrum utilization of communication systems,a novel microstrip bandpass filter with reconfigurable operational passbands was designed.The filter was composed of two frequency-switchable resonators and two stepped impedance resonators.A switching strategy based on PIN diodes was adopted,where the two operational passbands were independently turned on or off by switching the PIN diodes between the ON and OFF states.To verify the design feasibility,a filter prototype was designed and fabricated on an F4BM substrate with a dielectric constant of 3.5.Measured results demonstrate that one bandpass filter with a center frequency of 0.75 GHz is obtained when both PIN diodes are forward-biased,and the other with a center frequency of 1.45 GHz is obtained when both diodes are unbiased.Complete passband shutdown is achieved when one PIN diode is forward-biased and the other is unbiased.The measured results agree well with the simulated ones,which validates the effectiveness of the proposed design.关键词
带通滤波器/微带滤波器/可重构通带/阶跃阻抗谐振器/PIN二极管Key words
bandpass filter/microstrip filter/reconfigurable passband/stepped-impedance resonator/PIN diode分类
信息技术与安全科学引用本文复制引用
吴婧,曹良足..新型可重构通带的微带带通滤波器的设计[J].电子元件与材料,2026,45(3):296-302,7.基金项目
国家自然科学基金(61661023) （61661023）
