Experimental and theoretical analysis of anisotropic trapezoidal antennas
Article first published online: 7 DEC 2012
Copyright 1981 by the American Geophysical Union.
Volume 16, Issue 6, pages 1131–1135, November-December 1981
How to Cite
1981), Experimental and theoretical analysis of anisotropic trapezoidal antennas, Radio Sci., 16(6), 1131–1135, doi:10.1029/RS016i006p01131., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 26 FEB 1981
- Manuscript Received: 26 OCT 1980
A novel broadband antenna is described, in the form of a comblike trapezoidal anisotropic structure above a ground plane. The base of the comb is mounted close to the ground plane, parallel to it, and is fed at one end by a coaxial line. Such an antenna has uniquely defined polarization of the radiated field and very good aerodynamic properties. An experimental model of the antenna was made using printed-circuit technique. By trimming the upper edge of the comb, an antenna was obtained experimentally having VSWR less than 2.0 (with respect to 50 Ω) in a frequency range of about two octaves. It was found that the antenna radiation pattern varies with frequency, but that a direction exists in which the antenna radiates well at all frequencies in the range. A mathematical model was also developed, permitting rather accurate numerical analysis of the antenna.