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The linear tapered slotline antenna as a holographic antenna feed

Posted on:2004-02-20Degree:M.ScType:Thesis
University:University of Manitoba (Canada)Candidate:Thingvold, SherylFull Text:PDF
GTID:2468390011975122Subject:Engineering
Abstract/Summary:
The holographic antenna has been validated as a high gain planar antenna in the Ka-band frequency range. It may potentially replace existing technologies such as reflectors and phased array antennas where a high gain low profile antenna is required. However, current feed devices for this antenna, including horns and open waveguides, are bulky, which detracts from the attractive silhouette of the hologram.;The linear tapered slotline antenna is proposed as an alternative to these feed devices. This antenna may be etched onto the same substrate as the holographic antenna providing a single unit compact antenna. To facilitate the design process, the holographic antenna's efficiency was formulated to determine the holographic antenna dimensions and feed patterns that generate optimal performance. By quantifying the various losses incurred in the system, a direct correlation between antenna parameters and antenna performance was provided. As such, a systematic approach was taken to optimize the performance of the holographic antenna by using the linear tapered slotline antenna to generate the desired feed patterns.
Keywords/Search Tags:Antenna, High gain, Feed patterns
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