Title

A Microwave Gaussian-Beam Launcher With An Active Aperture-Blockage To Control The Spot-Size Of The Beam

Authors

Authors

C. L. Gu; P. S. Neelakanta; V. Ungvichian;P. F. Wahid

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

IEEE Trans. Microw. Theory Tech.

Keywords

Engineering, Electrical & Electronic

Abstract

A method of controlling the spot-size of a focused microwave Gaussian-beam using an active aperture-blockage is described. The Gaussian-beam launcher consists of an open-ended scalar-horn with a dielectric hyperhemisphere at its aperture. Also included is an AgI-pellet at the aperture-center with a provision to heat it with an external dc source. The scalar-horn plus the dielectric lens launch a Gaussian-beam; and, the AgI pellet when heated, becomes a superionic conductor offering an aperture-blockage. This results in a variation or the spot-size of the emergent-beam. Theoretical results and experimental data are furnished and compared.

Journal Title

Ieee Transactions on Microwave Theory and Techniques

Volume

42

Issue/Number

3

Publication Date

1-1-1994

Document Type

Note

Language

English

First Page

520

Last Page

522

WOS Identifier

WOS:A1994NG44500023

ISSN

0018-9480

Share

COinS