The radiation characteristics of a zig-zag antenna

Author

Sengupta, Dipak L.

Author_Institution

Dept. of Electrical Engineering, University of Toronto, Toronto, Canada

Volume

6

Issue

2

fYear

1958

fDate

4/1/1958 12:00:00 AM

Firstpage

191

Lastpage

194

Abstract

The radiation properties of a single zig-zag antenna are reported. This is a special type of broad-band traveling-wave antenna which, when properly designed, produces a strong axial beam of radiation. The radiation pattern has a half-power beamwidth of $22\\deg$ in the $E$ plane and $28\\deg$ in the $H$ plane; the corresponding sidelobe ratios are 10.5 db and 17.5 db down, respectively, in the two planes. Approximate expressions for the radiation fields are also given and compared with the experimental values. The broad-band property of the antenna is studied by measuring the radiation patterns over a range of frequencies. The performance of the antenna is compared with the Yagi antenna. The high directivity of the antenna can be utilized advantageously in the vhf and uhf ranges. The results of impedance measurement also are reported.

Keywords

Endfire arrays; Helical antennas; Radio telescopes; Traveling wave antennas; Antenna feeds; Antenna measurements; Antenna radiation patterns; Conductors; Frequency measurement; Helical antennas; Impedance measurement; UHF antennas; UHF measurements; Yagi-Uda antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IRE Transactions on

Publisher

ieee

ISSN

0096-1973

Type

jour

DOI

10.1109/TAP.1958.1144571

Filename

1144571