Reducing the height of a circular array of monopoles using top hats and dielectric coatings
Article first published online: 11 MAY 2004
Copyright 2004 by the American Geophysical Union.
Volume 39, Issue 3, June 2004
How to Cite
2004), Reducing the height of a circular array of monopoles using top hats and dielectric coatings, Radio Sci., 39, RS3004, doi:10.1029/2002RS002774., and (
- Issue published online: 11 MAY 2004
- Article first published online: 11 MAY 2004
- Manuscript Accepted: 11 MAR 2004
- Manuscript Revised: 20 JAN 2004
- Manuscript Received: 9 SEP 2002
- monopole antennas;
- antenna height reduction;
- antenna arrays
 Using a Radial Guide Field Matching Method, an investigation is performed into reducing the height of an electronically steered circular array of monopole antennas composed of a central active element surrounded by passive elements being either short- or open-circuited. It is shown that a considerable height reduction can be achieved using top hats attached to monopoles ends and by applying dielectric coating underneath the top hats. The trade-off in achieving height reduction is narrower impedance bandwidth.