EEC228 - Advanced Microwave And Antenna Design Techniques

4 units - Spring Quarter Alternate Years

Lecture: 3 hours

Laboratory: 3 hours

Grading: Letter; based on final, midterm, quizzes (65%), lab reports (25%) and homeworks (10%)

Prerequisites: courses 132B or 131B

Catalog Description:

Theory, design, fabrication, analysis of advanced microwave devices, antennas. Includes wideband transformers, tapered networks, stripline and microstripline broadband couplers and hybrids. Lumped and distributed filter synthesis. Broadband matching theory applied to microwave devices. FET amplifiers. Antenna design, analysis of horns, microstrip, log periodic, arrays, spirals, and reflectors.

Expanded Course Description

This course emphasizes advanced design techniques for both passive and active microwave devices such as wideband and low noise microwave amplifiers employing GaAs FETs and HEMTs.

The course will discuss synthesis techniques for multi-element and cascade distributed structures. This will involve synthesis of distributed filters, transformers and couplers employing computer oriented design and fabrication in microstrip media. Tolerance analysis will be performed including the perturbations resulting from measurement errors. The analysis and design of 90' and 180' hybrids will be performed.

Additional topics will include advanced matching network synthesis for broad-band and low noise figure RF/Microwave design employing computer oriented optimization techniques. All designs will be fabricated and tested on state of the art RF measurement equipment. Sensitivity studies will be performed.

A study will be performed of the analysis and design of a variety of classes of antennas. This will include a study of the Kirchoff diffraction integral formulation to provide a basis for design of E-plane, H-plane and Pyramidal horn and reflector antennas. Computer oriented design techniques will be performed as an integral part of the design of horn antennas. Measurements of antenna patterns and gain will be performed in the anechoic chamber and on the outside antenna range.

Techniques to realize broadband antenna performance will be undertaken. This will include the study of theory of log periodic-dipole arrays and equiangular spirals employing modal analysis techniques. Antenna design realizations will be performed in both lumped element form and on teflon fiberglass.

ABET Category Content:

Engineering Science: 2 credits
Engineering Design: 2 credits

Instructor: Branner

THIS COURSE DOES NOT DUPLICATE ANY EXISTING COURSE 2/97