QUARTER-WAVE FRESNEL ZONE PLANAR LENS AND ANTENNA

Authors
HRISTOV HD HERBEN MHAJ
Citation
Hd. Hristov et Mhaj. Herben, QUARTER-WAVE FRESNEL ZONE PLANAR LENS AND ANTENNA, IEEE microwave and guided wave letters, 5(8), 1995, pp. 249-251
Citations number
NO
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE microwave and guided wave letters → ACNP
ISSN journal
10518207
Volume
5
Issue
8
Year of publication
1995
Pages
249 - 251
Database
ISI
SICI code
1051-8207(1995)5:8<249:QFZPLA>2.0.ZU;2-Y
Abstract
A new variety of the Fresnel zone planar lens with enhanced focusing q uality is proposed, Each full-wave zone is divided into four quarter-w ave subzones, which are covered by dielectric rings having equal thick ness but different permittivities, Based on this planar lens configura tion, a transmissive-type Fresnel-zone antenna for DBS-reception with more than 50% aperture efficiency is developed and examined theoretica lly.