A radial line slot antenna for 12 GHz satellite TV reception

Author

Ando, Makoto ; Sakurai, Kimio ; Goto, Naohisa ; Arimura, Kunitaka ; Ito, Yu

Author_Institution

Faculty of Eng., Tokyo Inst. of Technology, Japan

Volume

33

Issue

12

fYear

1985

fDate

12/1/1985 12:00:00 AM

Firstpage

1347

Lastpage

1353

Abstract

The analysis and design of novel planar antennas which can radiate circularly polarized pencil beams in $x$ -band are presented for the application of receiving direct broadcast from a satellite (DBS). This antenna belongs to a class of slotted waveguide antennas and high efficiency is expected in principle. A circular two-dimensional aperture is located on the top plate of a twofold radial waveguide and is excited by a radially inward traveling transverse electromagnetic (TEM) mode in the upper waveguide. Slots are arrayed on the aperture spirally in such a way that they can couple with the radial currents flowing over the aperture plate to produce a circularly polarized broadside beam. Promising performances of the antenna are predicted theoretically. Experiments are performed with respect to basic characteristics of the antenna and they show the validity of the design and analysis.

Keywords

Satellite communication, broadcast; Spiral arrays; Apertures; Electromagnetic scattering; Electromagnetic waveguides; Optical coupling; Planar arrays; Polarization; Satellite antennas; Satellite broadcasting; Slot antennas; TV broadcasting;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.1985.1143526

Filename

1143526