Title

Novel coaxial high pass filter design for RF applications

Document Type

Article

Publication Date

7-2010

Publication Source

International Review of Electrical Engineering

Volume

5

Issue

4

Inclusive pages

1833-1837

Publisher

Praise Worthy Prize

Place of Publication

United States

ISBN/ISSN

1827-6660

Peer Reviewed

yes

Abstract

The complete design of a novel coaxial high pass filter is given analytically and numerically for high power RF applications. The coaxial structure consists of two hollow concentric cylinders with a septum located between them at a single azimuthal angle. This septum provides a good high pass filter characteristics and mechanically holds two hollow cylinders together. The attenuation slope in the stop band with this structure is much sharper than the existing filter configurations. This gives faster transition time from stop band to pass band. One end of the coaxial structure is closed and the other end is used as an output port. Excitation port is placed on the side walls of the outside cylinder. The design procedure proposed in this paper has been implemented to obtain a filter configuration at the lower end of the UHF range. The new filter is simulated using 3D electromagnetic simulator, HFSS. It is then constructed and measured. Simulation results are compared with the measured results. Good agreement between simulated and measured results has been observed.

Keywords

Cavity; Coaxial filter; High pass; Resonance; RF; UHF

Disciplines

Engineering

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