Scheduled System Maintenance:
On May 6th, single article purchases and IEEE account management will be unavailable from 8:00 AM - 5:00 PM ET (12:00 - 21:00 UTC). We apologize for the inconvenience.
By Topic

Arbitrary polarization from annular slot plannar antennas

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Goebels, F. ; Hughes Aircraft Company, Culver City, CA, USA ; Kelly, K.C.

This paper describes the analysis and design of a class of antennas which can radiate and receive constant-shape pencil beams with either circular sense, any linear or elliptical polarization by a simple adjustment in the feed circuit. Such radiators are called arbitrarily polarized antennas. The apertures described are located on upper plates of radial waveguides and are composed of annular slots, with each annulus consisting of a discrete number of crossed slots. The annular slots are positioned so that each arm of the crossed slots can couple by a constant factor with the radial or circumferential currents flowing over the aperture plate to produce a common instantaneous direction for the electric field in each slot pair Both standing-wave and traveling-wave array types are employed. The standing-wave array requires only one radial waveguide mode for its operation. The traveling-wave array requires two modes and results in greater bandwidth and greater freedom in arraying many annuli. The methods used to excite the various radial waveguide modes are discussed; theoretical and experimental radiation patterns at X band are compared.

Published in:

Antennas and Propagation, IRE Transactions on  (Volume:9 ,  Issue: 4 )