Date of Award
Program or Major
Electrical and Computer Engineering
Master of Science
Richard A Messner
Michael J Carter
Wayne J Smith
A miniaturized phased array antenna with a uniquely designed switch line phase shifter to obtain a steerable beam pattern is presented. A 1x4 phased array patch antenna is designed at 5 GHz using Rogers dielectric material with a relative permittivity of 6.15 and a thickness of 1.524 mm. Each element of the probe fed PAA are connected to a phase shifter on a different dielectric substrate. The phase shifter has four equal length microstrip lines placed in a circular fashion around a via that connects to the antenna at the center. The addition of each microstrip line is designed to provide a phase shift of 90⁰. This design provides the ability to place the phase shifter and feed to the antenna in space constrained locations.
The maximum steering angle obtained was ±45⁰. This design is appropriate for Wi-Fi applications that requires directional beam pattern, Multiple Input Multiple Output (MIMO) communications, scanning radars, and other applications requiring steerable beam pattern. This design is patent pending.
Timsina, Rudra Lal, "A Miniaturized Phased Array Antenna Based on Novel Switch Line Phase Shifter
Module" (2019). Master's Theses and Capstones. 1286.