Design of Narrow-Band, Direct-Coupled Waveguide Filters Using Triple-Post Inductive Obstacles

摘要

The theory and design of triple-post inductive obstacles are presented for the purpose of achieving direct-coupled, narrow-pass-band waveguide filters. A design procedure is discussed which permits the accurate design of filters with bandwidths of less than one percent. This type of filter construction is both mechanically simple and rugged without any sacrifice of electrical performance. (Author)