Computer Aided Design And Facrication Of Microwave Balanced Mixed

Mohammad Akashah , Noordin (2007) Computer Aided Design And Facrication Of Microwave Balanced Mixed. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of this project is to design, fabricate and test the microwave balanced mixer circuit. The mixer was designed using Microwave Office 2004 software. Then the designed mixer was fabricated on FR4 board with the specification of dielectric constant, &r = 4.7 at frequency, f = 2.4GHz. Generally, mixer circuit needs the nonlinear element to generate the harmonic of spectrum signaL In this project the Schottky 1PS76SB17 from Philips Semiconductor was used to generate the output of spectrum consists of the original with the sum and different signaL Besides that, the hybrid or baluns circuit are needed to make the passive element operate efficiently. ln this case, the directional coupler is used as the hybrid coupler. To ensure that the entire signal can be produced productively, the Wilkinson power divider is used. The performance of this mixer was simulated by simulating its isolation, return loss and insertion loss. The experimental validation to verify the performance of the designed mixer was done using the Network Analyzer and Spectrum Analyzer.

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