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X-Band Phase Shifters for Phased Array

by Xu, Jian

Abstract (Summary)
In this thesis, X-band phase shifters have been investigated and developed to meet the needs of future multi-antenna communication systems. Different types of digital phase shifters have been described with design equations. An X-band analog phase shifter using vector sum method is designed and simulated in ADS environment. A new biphase modulator using Lange coupler structure is developed and employed in the analog phase shifter. The simulation results show around 12dB insertion loss and around 10dB reflection coefficient. The phase error for each state is better than some of the commercially available products. As an application of the phase shifter, a phased array receiver is proposed on a print circuit board. The receiver is to instantaneously configure the phased array to the direction to which the signal comes from. The integration of antenna array, RF circuit, analog-to-digital converter, and microprocessor gives the receiver practical application in wireless communication area.
Bibliographical Information:

Advisor:

School:University of Cincinnati

School Location:USA - Ohio

Source Type:Master's Thesis

Keywords:x band phase shifter phased array

ISBN:

Date of Publication:01/01/2008

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