DocumentCode
1007348
Title
A shallow ridged-cavity crossed-slot antenna for the 240- to 400-MHz frequency range
Author
King, H.E. ; Wong, J.L.
Author_Institution
Electronics Res. Lab., Aerospace Corp., El Segundo, CA, USA
Volume
23
Issue
5
fYear
1975
fDate
9/1/1975 12:00:00 AM
Firstpage
687
Lastpage
689
Abstract
An experimental study has been made of a shallow ridged-cavity crossed-slot antenna to determine its feasibility for operation in the 240- to 400-MHz band. The various trends are summarized for the VSWR response characteristics as the cavity and slot parameters are varied. The wideband antenna characteristics using a ridged cavity configuration are demonstrated. Based on the limited amount of data obtained from the experimental model, the VSWR is < 2.7:1 from 240 to 270 MHz and < 2.1:1 from 290 to 400 MHz for a cavity with a maximum dimension of 33 by 33 by 4 in. Measured radiation patterns with the cavity mounted on a finite-size fiat ground plane are shown.
Keywords
Aircraft antennas; Slot antennas; UHF antennas; VHF antennas; Aircraft; Antenna measurements; Broadband antennas; Feeds; Polarization; Probes; Resonant frequency; Shape; Slot antennas; Wideband;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1975.1141138
Filename
1141138
Link To Document