Accession Number : ADA332254

Title :   Monolithic Millimeter-Wave Radiating Systems and Feed Networks

Descriptive Note : Final rept. 1 Jul 91-30 Apr 97

Corporate Author : RICE UNIV HOUSTON TX DEPT OF ELECTRICAL AND COMPUTER ENGINEERING

Personal Author(s) : Jackson, David R. ; Long, Stuart A. ; Williams, Jeffrey T.

PDF Url : ADA332254

Report Date : OCT 1997

Pagination or Media Count : 24

Abstract : The unifying theme of the research undertaken during the course of this contract is the design of monolithic antennas suitable for millimeter wave operation, and also certain aspects of feed network design at millimeter wave frequencies. The main focus of the antenna design projects was the investigation of planar leaky wave antennas consisting of either dielectric layers or periodic screens. These antennas offer the advantages of simplicity and efficiency at millimeter wave frequencies. Several different types of leaky wave antennas were developed and characterized, and shown to be very useful at millimeter wave frequencies. Other useful types of antennas that are suitable for either microwave or millimeter wave operation arose from this research, including new types of antennas that have less surface wave excitation (reduced surface wave antennas), and hence less mutual coupling and spurious radiation. The part of the research that pertained to feed network design focused on exploring the suitability of using conventional printed circuit transmission lines (stripline and microstrip) for millimeter wave operation, where the electrical substrate thickness may be large. In particular, the existence of leaky modes on these printed circuit lines, and their excitation by practical feeds, was examined.

Descriptors :   *MILLIMETER WAVES, *MONOLITHIC STRUCTURES(ELECTRONICS), *ANTENNA FEEDS, *COUPLED ANTENNAS, COUPLING(INTERACTION), SURFACE WAVES, DIELECTRICS, PLANAR STRUCTURES, STRIP TRANSMISSION LINES, PRINTED CIRCUITS, DIPOLE ANTENNAS, MICROWAVE ANTENNAS.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE