Compact Box-Section Bandpass Filter with Improved Frequency Selectivity
作者： S. L. Yuan , X. B. Wei , B. Fu , G. T. Yue , J. X. Liao
DOI: 10.1080/02726343.2013.799963
关键词:
摘要: Abstract A compact box-section wideband bandpass filter with improved frequency selectivity is presented, and good performance has been achieved. The proposed consists of four folded stepped-impedance resonators that shared a common grounded via-hole. Mixed electric magnetic coupling introduced in the to generate an extra transmission zero near passband for sharp selectivity. By adjusting strength mixed coupling, location can be controlled. new 31.4% fractional bandwidth designed fabricated verify validity method. Measured results are agreement electromagnetic simulation.
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