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Enhanced waveguide bandpass filters using S-shaped resonators

✍ Scribed by N. Suntheralingam; D. Budimir

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
367 KB
Volume
19
Category
Article
ISSN
1096-4290

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✦ Synopsis

This article presents a new solution for stopband performance improvement of rectangular waveguide bandpass filters using S-shaped resonator loaded waveguide configurations at microwave and millimeter-wave frequencies. The proposed filter structure is compact in size when comparing with the standard E-plane counterpart. Compactness is achieved by taking advantage of the properties of slow wave effect in half wavelength resonators. Periodicity is readily imposed upon cascading the S-shaped resonators within the rectangular waveguide. The structure is simple and compatible with E-plane technology. This type of bandpass filters can be easily realized with a single metallo-dielectric insert within a standard rectangular waveguide. Simulation and experimental results are presented to validate the argument along with some design guidelines. V

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