Date of Award:

5-2026

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Electrical and Computer Engineering

Committee Chair(s)

Bedri A. Cetiner

Committee

Bedri A. Cetiner

Committee

Reyhan Baktur

Committee

T. C. Shen

Abstract

This research explores two types of reconfigurable, steerable antennas. These antennas change their beam direction based on electric input signals. The antennas have a layer that overlays the main antenna circuit board. The layer has small copper rectangles (pixels) that may be connected using either varactor diodes (which behave as voltage-controlled capacitors) or PIN diodes (electronic switches). The first antenna can steer in the xz-plane in any direction within about 23° from boresight (straight up from the antenna) and in the yz-plane to about 29° from boresight. The antenna uses varactor diodes on a planar layer. The second antenna can tilt its beam much farther, about 50° from boresight. The second antenna uses PIN diodes on a spherical layer to connect the copper pixels. The antennas were simulated in HFSS, a full-wave EM simulation software, and the latter antenna was constructed and measured.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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