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A COMPACT TRI-BAND BANDPASS FILTER WITH ADJUSTABLE THIRD PASSBAND USING SQUARE OPEN LOOP RESONATOR EMBEDDED BY OPEN STUBS

机译:空心三通的方形开环谐振器可调节第三通带的紧凑型三通带通滤波器

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摘要

To obtain an adjustable passband filter, some open stubs are embedded into an open loop resonator. The third resonant frequency can be adjusted by changing size of the stub added at the middle. A tri-band microstrip bandpass filter is designed to verify the proposed topology, and a prototype was fabricated. Measurement results demonstrate that operating frequency of the sample achieves around 0.86, 1.83, and 2.98 GHz.
机译:为了获得可调节的通带滤波器,一些开路短截线嵌入到开环谐振器中。第三谐振频率可以通过改变中间增加的短截线的大小来调节。设计了三频带微带带通滤波器以验证所提出的拓扑,并制造了原型。测量结果表明,样品的工作频率约为0.86、1.83和2.98 GHz。

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