Image Reject Filter Design By Using Defected Ground Structure For Satellite Application

Ng , Yelling Jessi (2011) Image Reject Filter Design By Using Defected Ground Structure For Satellite Application. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of this project is to design an Image Reject Filter by using Defected Ground Sturture (DGS). The platform that used for this project is the Direct Broadcast Satellite (DBS) system which employs the Ku-band as its operating band at 11.70GHz until 12.20GHz. Direct Broadcast Satellite system uses superheterodyne receiver architecture which suffers from the problem of image frequencies. Defected Ground Stucture (DGS) is the new approach to the bulky and expensive bandstop filter that conventionally used. The integrated bandstop filter which is introduced as image rejection filter at 9.30GHz in the receiver system of Direct Broadcast Satellite is design by using Advanced Design System (ADS). At the end of the project, the improvements and alternative ways to design the bandstop filter has been discussed.

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