A Compact Cavity-Backed Monopole Antenna for UWB Applications

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Authors
  1. Merkley, E.
  2. Jackson, B.
  3. Saavedra, C.
  4. Antar, Y.
Corporate Authors
Defence Research and Development Canada, Ottawa Research Centre, Ottawa ON (CAN)
Abstract
A new directive ultra wideband (UWB) antenna using a cavity-backed monopole is presented. This compact, broadband, and high-gain antenna consists of a triangular-shaped monopole radiating element along with a tapered cavity. The proposed design uses two pairs of shorting lines to improve radiation pattern consistency at higher frequencies and a tapered cavity to enhance the gain and impedance bandwidth of the antenna. Electromagnetic simulations show an impedance bandwidth with voltage standing wave ratio (VSWR) < 2 from 3.0 GHz to 14.5 GHz (133%) using the proposed bandwidth enhancement techniques. The antenna achieves a gain greater than 6 dBi from 3.0 GHz to 10.8 GHz (113%) with a peak of 10.8 dBi.
Keywords
Antennas
Report Number
DRDC-RDDC-2017-N006 — External Literature
Date of publication
16 Oct 2017
Number of Pages
2
DSTKIM No
CA045212
CANDIS No
805605
Format(s):
Electronic Document(PDF)

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