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Super-Wide Impedance Bandwidth Planar Antenna for Microwave and Millimeter-Wave Applications
Alibakhshikenari, M. Virdee, B.S. See, C.H. Falcone, F. Limiti, E.
Alibakhshikenari, M.
Virdee, B.S.
See, C.H.
Falcone, F.
Limiti, E.
Publication Date
2019-05-19
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© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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2019-05-17
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Abstract
A feasibility study of a novel configuration for a super-wide impedance planar antenna is
presented based on a 2 × 2 microstrip patch antenna (MPA) using CST Microwave Studio. The antenna
comprises a symmetrical arrangement of four-square patches that are interconnected to each other with
cross-shaped high impedance microstrip lines. The antenna array is excited through a single feedline
connected to one of the patches. The proposed antenna array configuration overcomes the main
drawback of conventional MPA with a narrow bandwidth that is typically <5%. The antenna exhibits
a super-wide frequency bandwidth from 20 GHz to 120 GHz for S11 < −15 dB, which corresponds
to a fractional bandwidth of 142.85%. The antenna’s performance of bandwidth, impedance match,
and radiation gain were enhanced by etching slots on the patches. With the inclusion of the slot,
the maximum radiation gain and efficiency of the MPA increased to 15.11 dBi and 85.79% at 80 GHz,
which showed an improvement of 2.58 dBi and 12.54%, respectively. The dimension of each patch
antenna was 4.3 × 5.3 mm2
. The results showed that the proposed MPA is useful for various
existing and emerging communication systems such as ultra-wideband (UWB) communications,
RFID systems, massive multiple-output multiple-input (MIMO) for 5G, and radar systems.
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Citation
Alibakhshikenari M, Virdee BS, See CH et al (2019) Super-Wide Impedance Bandwidth Planar Antenna for Microwave and Millimeter-Wave Applications. Sensors. 19(10): 2306.
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