Importance

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Abstract

E-plane waveguide duplexers comprising two filters (e.g., one or more E-plane ceramic waveguide filters), and methods for manufacturing the same, are described herein. The duplexer may include a plurality of septa (including a first septum and a second septum) formed by a union of a first dielectric block and a second dielectric block (e.g., ceramic). The first septum and/or the second septum may limit a residual field strength from the loop (e.g., inductive loop) to couple small amounts of energy from the first filter to the second filter (e.g., creating the duplexer). The width of the first septum and/or the second septum may determine the input loading from a first channel of the duplexer to a second channel of the duplexer. Moreover, by reducing the part count of the duplexer and/or decreasing its complexity, the structure of the duplexer may be manufactured more efficiently and its cost may be decreased.

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First Claim