EEE426 ANTENNAS AND PROPAGATION

Course Code:3560426
METU Credit (Theoretical-Laboratory hours/week):4 (3.00 - 2.00)
ECTS Credit:7.0
Department:Electrical and Electronics Engineering
Language of Instruction:English
Level of Study:Undergraduate
Course Coordinator:Prof.Dr. CUMALİ SABAH
Offered Semester:Fall Semesters.

Course Objectives

  • To familiarize the student with the basic antenna concepts and the antenna subsystem (radiating element, feed networks) as a part of communication, broadcasting, radar, navigation and similar systems.
  • To familiarize the student with the common antenna types and structures, their parameters and properties along with an understanding of RF measurement techniques.

Course Content

Antenna parameters. Linear antennas. Influence of earth on antenna radiation pattern and impedance. Radiation from slot and aperture antennas. Antenna arrays and the general array formula. Baluns. Receiving antenna theory. Elements of groundwave, tropospheric and ionospheric propagation.


Course Learning Outcomes

Having successfully completed this course, the student will be able to:

1) Identify, analyze and interpret the fundamental parameters of antennas (radiation pattern, beamwidth, radiation power density, radiation intensity, directivity, beam solid angle, beam efficiency, gain, antenna efficiency, polarization, effective area, Friis transmission equation, radar range equation and radar cross section (RCS), input impedance, radiation resistance, bandwidth, antenna noise temperature).

2) Formulate the radiation fields of an antenna, at both near- and far-zone; and identify the duality and reciprocity principles.

3) Formulate and analyze the radiation from wire antennas (dipoles, monopoles, loop antennas). Utilize the image theory to analyze an antenna near an infinite conducting ground.

4) Formulate and analyze the antenna arrays.

5) Formulate and analyze the aperture antennas. Identify the field equivalence principle.

6) Identify and analyze the basic modes of EM wave propagation (Direct wave, grounded reflected wave, Fresnel formulas, surface wave, tropospheric refraction, effective earth radius, ionospheric waves).