# ECE 484

## Antenna Theory and Design

### Course Level

### Units

### Prerequisite(s)

### Course Texts

Balanis, Constantine. *Antenna Theory: Analysis and Design*. 3rd ed. Wiley-Interscience, 2005.

Students will have access to secured D2L site for more course information.

### Schedule

### Course Description

Introduction to the fundamentals of radiation, antenna theory and antenna array design. Design considerations for wire, apeture, reflector and printed circuit antennas.

### Learning Outcomes

By the end of this course, the student will:

- Have practice with foundational aspects of antenna engineering through homework and problem analysis; foundations are not extensive, yet the student will develop quality and critical thinking checks necessary for extended study and mastery of selected subjects in antenna engineering.
- Have 10 or more hours of hands-on experience in antenna engineering (engineering, design, analysis) EDA tools
- Be exposed to the historical aspects that relate to the current developments and future technology advances in antenna engineering
- Become mindful of some nonantenna engineering aspects (manufacturability, reliability, consumer demand, constraints in materials) that influence future technology advances and contributions in research and industry

### Course Topics

**Introduction and review of Maxwell's Equations**

- How an antenna works
- Different types of antennas
- The wave equation and its solution

**Fundamental parameters of antennas**

- Radiation patter, directivity, gain, beamwidth, bandwidth
- Polarization, input impedance, radiation efficiency, Friis transmission formula

**Radiation integrals and auxiliary potential functions**

- Vector potential function and equivalent sources
- Solution to the vector potential wave equation
- The "recipe" for computing antenna fields from current distributions
- Far-field radiation integrals, duality, reciprocity and reaction theorem

**Linear wire antennas**

- Infinitesimal dipole, small dipole, region separation
- Finite-length dipole, half-wave dipoles
- Linear elements near or on infinite perfect conductors
- HFSS tutorial

**Array fundamentals and array synthesis**

- Array factor, uniform array, directivity, sidelobes, tapered array
- Array scanning, end-fire array, planar array
- Schelkunoff unit circle representation
- Dolph-Chebyshev synthesis
- Space factor, and discretization of, continuous line sources
- Taylor line source

**Microstrip antennas**

- Patch antennas

**Aperture antennas**

- Equivalence principle and radiation equations
- Rectangular apertures
- Circular apertures, Babinet's principle

**Reflector antennas**

- Parabolic reflectors and reflector optics
- Antenna measurements

### Relationship to Student Outcomes

ECE 484 contributes directly to the following specific electrical and computer engineering student outcomes of the ECE department:

- Ability to apply knowledge of mathematics, science and engineering (high)
- Ability to design a system, component or process to meet desired needs within realistic constraints, such as economic, environmental, social, political, ethical, health and safety, manufacturability and sustainability (medium)
- Ability to identify, formulate and solve engineering problems (high)
- Ability to use the techniques, skills and modern engineering tools necessary for engineering practice (high)