College - Author 1
College of Engineering
Department - Author 1
Electrical Engineering Department
Degree Name - Author 1
BS in Electrical Engineering
College - Author 2
College of Engineering
Department - Author 2
Electrical Engineering Department
Degree - Author 2
BS in Electrical Engineering
Date
6-2024
Primary Advisor
Payam Nayeri, College of Engineering, Electrical Engineering Department
Abstract/Summary
Phase shifters are found in microwave/RF applications such as defense or wireless communications for their ability to control the relative phase of a system which allows for alignment of signals to obtain constructive interference. Typical phase shifters are chip level (digital and analog) which require a DC bias therefore restricting PCB use unless allowance for air gaps. The paper analyzes a passive and low-profile 2-bit phase shifter using the Schiffman architecture, which outputs a near-constant 90 degree shift over a wide band of frequencies. The design process initially confirmed a proper 90 degree phase shift over the desired WiFi band, followed by altering lengths of certain sections of the Schiffman architecture to achieve a 2-bit shifter. Proper operation of the device will allow for a substitution for the chip-level applications in defense (early warning radar, missile defense, and space surveillance) and communications (satellite communications and collision warnings).
URL: https://digitalcommons.calpoly.edu/eesp/638