Design of polarization-preserving circular waveguide filters with attenuation poles
نویسندگان
چکیده
منابع مشابه
Design of Polarization-preserving Circular Waveguide Filters with Attenuation Poles
Bandpass filters in circular wa eguide technology are designed to ha e enhanced stopband responses. Highly dispersi e coupling sections are introduced to replace regular circular irises. The resulting direct-coupled resonator bandpass filters ha e the ad antage of preser ing the polarization of the incident excitation while pro iding sharp cutoff skirts. Attenuation poles at finite frequencies ...
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Circular waveguide filters with improved performance are presented. They are based on TM11-mode resonators which permit the filter to be smaller than standard TE11-mode filters, preserve all polarizations due to rotational symmetry, and are flexible with respect to the design of bandpass or highpass filters. In order to demonstrate their advantages, they are compared to a standard TE11-mode des...
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This paper presents the design of a class of highly selective microstrip bandpass filters that consist of microstrip open-loop resonators that exhibit a single pair of attenuation poles at finite frequencies. A practical design technique for this class of filters is introduced, including tables and formulas for accurate and fast filter synthesis. Two design examples of a six-pole filter with a ...
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ژورنال
عنوان ژورنال: Microwave and Optical Technology Letters
سال: 2001
ISSN: 0895-2477,1098-2760
DOI: 10.1002/mop.10027