Narrow-band, fixed-tuned, and tunable bandpass filters with zig-zag hairpin-comb resonators
Narrow-band, fixed-tuned, and tunable bandpass filters with zig-zag hairpin-comb resonators
复制标题
DOI：
10.1109/tmtt.2003.809631
复制
发表时间：
2003-04
影响因子：
4.3
通讯作者：
G. Matthaei
中科院分区：
文献类型：
--
作者：
G. Matthaei
“发夹梳”滤波器已被证明具有特殊的性能，有利于设计紧凑，窄带和带通微带滤波器。本文介绍了一种新的“锯齿形”发夹梳状滤波器，它具有设计紧凑型窄带滤波器的重要优点。计算响应和高温超导试验设计的测量结果的例子。这种类型的带通滤波器的设计中提供的相当大的灵活性被证明是有帮助的可调谐带通滤波器的设计具有几乎恒定的带宽和通带形状，因为它们被调谐。调谐近一个倍频程范围内的测量结果。
"Hairpin-comb" filters have been previously shown to have special properties that are advantageous for the design of compact, narrow-band, and bandpass microstrip filters. Herein, a new "zig-zag" form of hairpin-comb filter is introduced, which is shown to have additional important advantages for designing compact narrow-band filters. Examples with computed responses and the measured results from high-temperature superconductor trial designs are presented. The considerable flexibility available in the design of bandpass filters of this sort is shown to be helpful in the design of tunable bandpass filters having nearly constant bandwidth and passband shape as they are tuned. Measured results for tuning over nearly an octave range are presented.