Dual Mode SIW Bandpass Filter

Noor Azah, Ab Halim (2011) Dual Mode SIW Bandpass Filter. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Filter is highly desirable in communication system. It functions to pass through the desired frequencies within the range and block unwanted frequencies. In addition, filters are also needed to remove out harmonics that are present in the communication system. The objective of this project is to design, construct and fabricate dual mode SIW bandpass filter suitable for land based satellite communication application centered at 9GHz. The filter must operate within the unlicensed 9GHz band. This application is in the X band range (8-12GHz) currently being used for military and satellite communication applications. A dual mode SIW bandpass filter prototype filter was produced; with the bandwidth is 400 MHz The filter covers the 9GHz band and the bandwidth from 8.5GHz to 9.5 GHz. The antenna was fabricated on FR4 board, that had a relative dielectric constant, εr = 4.7, a loss tangent tan δ = 0.019 and thickness, height of 1.6 mm.

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