Design of a Wideband Phased Patch Antenna Array

Master thesis (2021)

Authors

J.P. Bout Electrical Engineering, Mathematics and Computer Science

Contributors

Alexander Yarovoy Microwave Sensing, Signals & Systems - EEMCS (mentor)
Rob Van Der Meer Robin Radar Systems (mentor)
A. Endo Tera-Hertz Sensing - EEMCS (graduation committee member)
J. Puskely Microwave Sensing, Signals & Systems - EEMCS (graduation committee member)
Faculty
Electrical Engineering, Mathematics and Computer Science, Electrical Engineering, Mathematics and Computer Science
Copyright: © 2021 Jelle Bout
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Published Date

22-04-2021

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

The increasing number of drones forms a more significant problem every year. Negative impact becomes more apparent during daily life as, for example, airport operations are shut down due to unauthorized users of drones. This report focuses on designing a new wideband antenna array as part of an integrated radar system to detect small objects, such as drones or birds. The design is done by studying generic array design assuming uncoupled antenna elements with omnidirectional radiation patterns. A comparative study of possible antenna element types has been conducted, concluded with selecting the best candidate. An antenna array has been designed with the embedded antenna elements and is verified using a prototype. Finally, an additional enhancement using meta-materials is done in an attempt to improve the antenna’s performance further. A wideband patch antenna array is proposed, which achieves a verified impedance bandwidth of 0.90 GHz with a scanning capability of ±30 degrees in azimuth and ±15 degrees in elevation. The measurements verify what the simulations have shown at broadside. Also, simulations have shown that the impedance could be increased to 2.96 GHz if a smaller feeding pin is used. It is also demonstrated that an AMC ground plane doesn't improve the antenna's performance and is, therefore, not implemented.

Files

Thesis_report_final.pdf
(pdf | 17.6 Mb)
- Embargo expired in 22-04-2023