Alternative antenna architectures for land electronic warfare – Initial investigations into low-profile directional antennas for Army vehicles

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Authors
  1. Merkley, E.C.
Corporate Authors
Defence Research and Development Canada, Ottawa Research Centre, Ottawa ON (CAN);Royal Military Coll of Canada, Kingston ONT (CAN)
Abstract
The results of a study into the feasibility of using multiple wideband, low-profile antennas installed on the body of Army vehicles for land electronic warfare (EW) is presented. The conformal installation of antennas near the metallic body of a vehicle necessitates the use of directive antennas that radiate energy away from the vehicle. In order to be suitable for all land EW missions, the antenna architecture must be capable of producing an overall radiation pattern that is approximately omnidirectional. This report explores the potential of using multiple directive antennas mounted around a vehicle to achieve an overall quasi-omnidirectional radiation pattern. Various analytically and electromagnetically simulated antenna arrays using directive antennas were evaluated using Matlab and FEKO for various numbers of antenna elements, antenna directivities, and installation locations. Antenna radiation patterns and array geometries were first simulated analytically in Matlab to determine which architectures can provide the least variation from omnidirectionality in azimuth. Antenna elements were then designed using FEKO to match the Matlab patterns as closely as possible. Finally, the antenna elements were placed in the optimal array geometries discovered in Matlab and evaluated through full-wave electromagnetic simulations. Results show that arrays using up to six antenna elements on the front, back, and sides of a vehicle have an electrical spacing between elements that is to
Keywords
Antenna arrays;electronic warfare (EW);multifunctional EW;low-profile antennas;conformal antennas
Report Number
DRDC-RDDC-2017-C174 — Contract Report
Date of publication
01 Jul 2017
Number of Pages
47
DSTKIM No
CA045195
CANDIS No
805585
Format(s):
Electronic Document(PDF)

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