NDLI: Design of Microwave Direct-Coupled Cavity Waveguide Filter for VSAT Communication at C-Band Using MathCAD Software

Content Provider	IEEE Xplore Digital Library
Author	Esa, M. Sinnathamby, R. Mohd Fairus Mohd Yusoff Noor Asniza Murad
Copyright Year	2006
Description	Author affiliation: Dept. of Radio Commun. Eng., Fac. of Electr. Eng., Johor Darul Takzim (Esa, M.; Sinnathamby, R.; Mohd Fairus Mohd Yusoff; Noor Asniza Murad)
Abstract	Waveguides are robust structure and handle high power well, compared to transmission line filter such as coplanar lines, microstrips and striplines. As such, it is used in a very small aperture terminal (VSAT) communication system operating at C-band. In this paper, the mathematical computations for the design dimensions of a direct-coupled cavity waveguide bandpass filter are implemented using MathCAD mathematical software, based on the insertion loss method. Firstly, the design specifications are set. These include operating frequency, operating bandwidth, minimum attenuation, ultimate attenuation, and type of filter response. An optimum number of filter orders will be determined. The cavity waveguide filter consists of vertical inductive diaphragm of circular holes, which represent the cavity. Computation of the filter performances in terms of the insertion and return losses were successfully achieved. Comparisons with electromagnetic simulations were also made. Good correlation can be observed between the computed performances using MathCAD and simulated performances using simulation software
Starting Page	116
Ending Page	120
File Size	4431947
Page Count	5
File Format	PDF
ISBN	0780397444
DOI	10.1109/RFM.2006.331050
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-12
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	waveguide cavity filter C-band Computational modeling MathCAD Electromagnetic waveguides Microwave communication correlations Power transmission lines Insertion loss VSAT Attenuation Band pass filters Robustness Coplanar waveguides Microwave filters
Content Type	Text
Resource Type	Article

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