Title: Conception and optimisation of UWB microstrip array antennas for radar applications with ordinary end-fire beam steering characteristic

Authors: A. Slimani; S.D. Bennani; A. El Alami

Addresses: Faculty of Sciences and Technics, Laboratory of Renewable Energy and Intelligent Systems, University Sidi Mohamed Ben Abdellah, Fez, Morocco ' Faculty of Sciences and Technics, Laboratory of Renewable Energy and Intelligent Systems, University Sidi Mohamed Ben Abdellah, Fez, Morocco ' Faculty of Sciences and Technics, Laboratory of Renewable Energy and Intelligent Systems, University Sidi Mohamed Ben Abdellah, Fez, Morocco

Abstract: In this paper, a compact linear array antennas with ultra wideband (UWB) end-fire characteristic for radar applications is proposed. The array antenna consists of four rectangular antenna element with a partial ground plane and a coplanar waveguide (CPW) transmission line of 50 ohm. The proposed array antennas is etched onto a FR4 printed circuit board (PCB) with an overall size of 85 × 32 × 1.58 mm³ and a dielectric constant ε_r = 4.4, it is planar and simple, and it is able to achieve an impedance bandwidth about 72% which is required in various radar applications like weather radars, local air traffic radars and naval radars. Ansoft's high frequency structure simulator (HFSS) and computer simulation tool (CST) softwares are used to calculate and compare the various parameters mentioned after.

Keywords: microstrip array antennas; ultra wideband; UWB array antennas; end-fire beam steering; radar; VSWR; voltage standing wave ratio; group delay; gain; Ansoft HFSS; high frequency structure simulator; simulation; optimisation; printed circuit boards; PCBs.

DOI: 10.1504/IJUWBCS.2016.080166

International Journal of Ultra Wideband Communications and Systems, 2016 Vol.3 No.3, pp.126 - 132

Received: 05 Aug 2015
Accepted: 06 Apr 2016
Published online: 06 Nov 2016 *

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