This paper presents a novel resonant structure for the design of compact pseudo-elliptic filters in waveguide technology. The resonator consists of a rectangular ridge which is arbitrarily located and oriented within a rectangular waveguide. Under certain conditions, by exciting the ridge with the fundamental TE10 mode of the waveguide, the resonator exhibits a transmission zero besides the transmission pole, thus behaving as a singlet. This element can be used as a basic building block for the design of higher order filters. In this work an in-line 5th order filter with three transmission zeros has been fabricated and tested, demonstrating the feasibility of the proposed design.
Waveguide Pseudoelliptic Filters Using Slant and Transverse Rectangular Ridge Resonators
BASTIOLI, SIMONE;MARCACCIOLI, LUCA;SORRENTINO, Roberto
2008
Abstract
This paper presents a novel resonant structure for the design of compact pseudo-elliptic filters in waveguide technology. The resonator consists of a rectangular ridge which is arbitrarily located and oriented within a rectangular waveguide. Under certain conditions, by exciting the ridge with the fundamental TE10 mode of the waveguide, the resonator exhibits a transmission zero besides the transmission pole, thus behaving as a singlet. This element can be used as a basic building block for the design of higher order filters. In this work an in-line 5th order filter with three transmission zeros has been fabricated and tested, demonstrating the feasibility of the proposed design.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
