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Design and analysis of an electrically steerable microstrip antenna for ground to air use
2002 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

A single-feed circularly polarized microstrip antenna array, operating at 2.45 GHz, have been analyzed and designed. The antenna is mainly intended to be used for reception of a video signal transmitted from an unmanned aircraft, but can be used for other applications as well. Due to the fact that it is supposed to be used in a switched system, the beam width is quite narrow. Measurements of the antenna shows that it have a half power beam width of 40 degrees. For a VSWR lower than 1.5 and an axial ratio lower than 3 dB the band width is 80 MHz centered at 2.44 GHz. The side lobe levels are lower than -23 dB. The antenna is designed to be simple in layout due to the fact that it should be as robust as possible against manufacturing faults.

Place, publisher, year, edition, pages
Keyword [en]
Technology, antennas, circularly polarized microstrip antennas, switched, antennas
Keyword [sv]
URN: urn:nbn:se:ltu:diva-45893ISRN: LTU-EX--02/244--SELocal ID: 38b231be-227b-4532-b1e9-37e82b8e141fOAI: diva2:1019193
Subject / course
Student thesis, at least 30 credits
Educational program
Engineering Physics, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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