Receiving properties of extended hemispherical lens coupled slot antennas for 94-GHz millimeter wave radiation

Citation
H. Kobayashi et Y. Yasuoka, Receiving properties of extended hemispherical lens coupled slot antennas for 94-GHz millimeter wave radiation, ELEC C JP 1, 84(6), 2001, pp. 32-40
Citations number
26
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS
ISSN journal
8756-6621 → ACNP
Volume
84
Issue
6
Year of publication
2001
Pages
32 - 40
Database
ISI
SICI code
8756-6621(2001)84:6<32:RPOEHL>2.0.ZU;2-B
Abstract
With a view to increasing the gain of the slot antenna, an extended hemisph erical lens coupled slot antenna is fabricated. The receiving characteristi cs for millimeter waves at 94 GHz are theoretically and experimentally stud ied. It is found that the power gain of the extended hemispherical lens cou pled slot antenna strongly depends on the radius R, extension length L, die lectric constant epsilon (r) and absorption coefficient alpha of the lens. The power gain of the extended hemispherical lens coupled double slot anten na is increased by 27 dB over the double slot antenna on a dielectric subst rate without a lens due to the focusing effect of the lens so that the gain at 94 GHz is 31.5 dBi. (C) 2001 Scripta Technica.