Wireless communication systems transmit information between two antennas: a send antenna and a receive antenna. The power received by the second antenna is a product of the power sent by the first antenna; the geometry, composition, and positioning of the two antennas; the medium through which the signal travels; and the environment in which the system operates. This course will explore the basics of antenna-to-antenna communication systems, with an emphasis on understanding Frii’s Transmission equation, which is a basic formula for computing the output-to-input power ratio of a simple two-antenna system. This course was developed by Kathryn Leigh Smith, Assistant Professor in the Department of Electrical and Computer Engineering at the University of North Carolina-Charlotte, in partnership with Ansys.
An antenna’s “figures of merit,” or “antenna parameters,” are all the objective, measurable characteristics of an antenna. These are the figures by which an engineer can judge the suitability of a particular antenna for any given application. For this course, we will be focusing on two major antenna parameters: antenna efficiency and antenna bandwidth.
Antennas are engineered devices used to send and receive electromagnetic signals. Each antenna has a unique set of characteristics — frequency response, polarization, radiation pattern, etc. It is important to know the general characteristics of common antenna topologies in order to be able to choose the proper topology for any particular application. In this course, we will briefly introduce four common antenna topologies: horn antennas, Yagi-Uda antennas, slot antennas, and rectangular patch antennas