Multiple Phase Shifter Design By Using Pin Diode For MIMO Application

Nurul Haryani , Yaacob (2009) Multiple Phase Shifter Design By Using Pin Diode For MIMO Application. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project presents a Multiple Phase Shifter Design by using PIN Diode for MIMO Application. Multiple Phase Shifter design is a method, where to differentiate multiple signal and the interferences. Besides, it is also to increase the performance channel and to improve the data rate. The multiple phase shifter circuit is designed with consist multiple input multiple output. PIN diode is used as a switch. The Multiple Phase Shifter 4x4 is designed to produce various output signals with different phase at 2.4GHz frequency. The designed methods are used to complete the project included calculation and simulation. Calculation method is done to obtain the width, W and the length, L of phase shift for each phase angles. Simulation method is done to design the phase shifter circuit by using Microwave Office 2006 software. The simulation design constructed based on desired phase shift, which are begin with simulation for single input single output, single input multiple output and multiple input multiple output. These design focused on certain different phase; 0°, 45°, -45°, 90°, -90°, 135°, 180°/-180° and 360°. The magnitude for return loss for each port in input port around -20dB and the isolation for every port is more than -3dB. The beam rosette pattern is changing based on the phase different in output. The analysis that had been done is the more length, L of the phase shift caused the different phase greater than or smaller than. The size of the layout of phase shift was 20.08mm in length and 2.82mm in width.

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