EE 474: Antennas and Propagation

Fall 2015

EE 474: Antennas and Propagation

Fall 2015

Instructor Information

Zhengqing (ZQ) YunHawaii Center for Advanced Communications (HCAC)

Office: POST 201B

Phone: 6-0759

Email: zyun@hawaii.eduhttp://www-ee.eng.hawaii.edu/~zqyun/courses/ee47415.html

Time and Location

Monday, Wednesday, and Friday 12:30 - 1:20pm Holmes 248

Prerequisites

EE 371 or instructor approval

Office Hours

1:30 - 2:30pm, M, W, F, or by appointment

Grading

Homework, quizzes: 30% One midterm: 30%Final exam: 40%

Textbooks

Iskander: Electromagnetic Fields and Waves

Balanis: Antenna Theory

Bertoni: Radio Propagation for Modern Wireless Systems

Others: John Krauss, Warren Stutzman, etc.

Contents EM Field and Waves:

Maxwell's Equations Polarization Vector Potentials Radiation Near/Far-field concept

Antenna Parameters: Radiation Pattern Power Density, Intensity Beamwidth, Directivity, Gain,

Efficiency, Bandwidth Input Impedance

Linear Antennas: Infinitesimal and Short Dipoles Linear Wire Antennas Half-Wavelength Dipoles Ground Effects

Loop Antennas: Circular Loop Antennas Other shapes

Array Antennas: Sum of Coherent Waves Two-Element Arrays N-Element Arrays Design Procedure

Contents Integral Equations and

Numerical Method: Integral Equations Method of Moments Self- and Mutual-Impedance

Broadband and Frequency Independent Antennas: Biconical Antennas Spiral Antennas Log Periodic Antennas Fractal Antennas

Aperture and Horn Antennas: Huygens Principle Rectangular Aperture Circular Aperture Fourier Transform and

Applications Edge Effect Due to Diffraction

Reflector Antennas: Plane Reflector Corner Reflector Parabolic Reflector

Microstrip Antennas: Patches Circular Polarization

Contents Radio Propagation for

Wireless Communications: Wireless Communications

Links and Cellular Systems Large-scale path loss Small-scale fading and

multipath Free Space Propagation Empirical Propagation

Modeling

Ray-Tracing and Applications for Site-Specific Propagation Prediction: Background Ray Tracing Algorithms New efficient ray tracing methods Propagation modeling in urban

environments Ray tracing in atmosphere

Exploitation of geospatial resources for propagation prediction: NASA's WorldWind; Microsoft's

Virtual Earth; Google Earth Ray tracing in Google Earth

Course objectivesUnderstanding fundamental concepts:

Radiation of EM field Propagation of EM waves Near/far field

Understanding basic antenna parametersUnderstanding how various antennas workUnderstanding basic antenna design

principlesFurther understanding of EM Waves