Theses and Dissertations

Date of Award

5-2016

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Physics

First Advisor

Dr. Fredrick Jenet

Second Advisor

Dr. Volker Quetschke

Third Advisor

Dr. Teviet Creighton

Abstract

A passive phased array is an array of antennas in which the phases of the signals on each element are controlled to be added to form a spatial beam. The advantage is that one can steer the beam without physically moving the constituent elements as well as create multiple beams on the sky simultaneously. This has application in the field of satellite and spacecraft communications where there is expected to be a large increase in satellite volume due to the increasing access to space. Traditional phased arrays can become costly to synchronize at satellite down-link frequencies, therefore we have built a phased array composed of cheap low noise block-downconverters (LNBs) that uses an external frequency-phase calibration transmitter to synchronize the array. We have shown that the four element array can achieve a factor of sixteen increase in gain over sufficient timescales and can be steered electronically producing the predicted beam.

Comments

Copyright 2016 James I. Murray. All Rights Reserved.

https://www.proquest.com/dissertations-theses/development-phased-array-using-lnbs-with-non/docview/1810998764/se-2?accountid=7119

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