WIDE-BAND CORRUGATED SURFACE ANTENNA
Abstract
Research concerned a study of flush-mounted broadband antennas of LP (log-periodic) design. Some of the types of designs for flush-mounted antennas which have been attempted are shown. A typical example is given of a class of structures which is fabricated by starting with a planar LP structure which has a satisfactory but bidirectional pattern, i.e., it radiates symmetrically in both hemispheres above and below the antenna. In order to have the energy radiating in the top half alone, the lower portion is usually blocked off with a series of cavities or even a single cavity. Most of these have been found to exhibit poor performance as broad-band antennas. Another configuration is shown that seemingly looks like a dual of the LP dipole antenna. This will not work because the transmission line at the input would be essentially short-circuited by the shunt loops as they got smaller and smaller to satisfy the scaling conditions. There may be ways of getting around this, but a direct approach would be preferable and it is the purpose of this paper to outline one such approach.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1963
- Accession Number
- AD0421451
Entities
People
- Marvin Lee Wahl
Organizations
- University of Illinois Urbana–Champaign