Date of Award

2016

Publisher

North Dakota State University

Document Type

Thesis

Degree Awarded

Master of Science (MS)

Program

Electrical and Computer Engineering

Department

Electrical and Computer Engineering

College

Engineering

Faculty Advisor

Braaten, Benjamin Davis

Description

This thesis explores the design, simulation, and analysis of two conformal spiral antenna structures that are used for an ultra-wide-band (UWB) bistatic radar. The radar antenna system operates over a frequency range from 0.9 GHz to 6.5 GHz. The UWB spiral antenna was initially derived for a planar substrate, then conformed to the spherical embodiment. A microstrip tapered balun feed structure was designed to provide a balanced signal from the radar to the antennas. This work focuses on how well the newly designed antenna system compares to the radar kit's pro- vided planar bow-tie antennas. In particular, the comparisons between simulations and prototype measurements are presented. It is shown that a spiral antenna and structure can be conformed to a 127.0 mm diameter sphere and have little e ect on the radar's performance when compared to a larger planar bow-tie antenna design.

Rights

NDSU Policy 190.6.2

Rights Link

https://www.ndsu.edu/fileadmin/policy/190.pdf

Handle Identifier

https://hdl.handle.net/10365/27983

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