Design Of X Band Mixer For Microwave Communication

Siti Sahhiada Ashikin, Mohd Yasim (2012) Design Of X Band Mixer For Microwave Communication. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project is about designing a X band mixer for RF communication. X band is the frequency spectrum which has range from 8 GHz until 12 GHz. The mixer is required to operates at 10 GHz . The basic function of mixer that need to understands is perform the sum and a difference frequency at a single output port when two distinct input frequencies are inserted into the other two ports. For transistor selection, FET is be decided because of its features compare with BJT. There are many types of mixer which are as their own characteristic performance. For this project, active mixer is choose as the first step in designing this mixer. The other theories and method that explore in this project is about the calculation how to get the value of resistance and the smith chart utility to get the value of the capacitor and inductor besides determined the types of DC biasing that will be used during designing this mixer. Based on the finding simulation result, it shows that active mixer and the transistor used be able to be used in this designing even though from the studying on journal, almost of them used Gilbert Cell mixer that can perform at high frequency.

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