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A Dual-Band Dual-Polarization Slot Patch Antenna for GPS and Wi-Fi Applications

Chen, J; Tong, K-F; Al-Armaghany, A; Wang, J; (2016) A Dual-Band Dual-Polarization Slot Patch Antenna for GPS and Wi-Fi Applications. IEEE Antennas and Wireless Propagation Letters , 15 pp. 406-409. 10.1109/LAWP.2015.2448536. Green open access

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Abstract

In this letter, a dual-band and dual-polarization capacitive-fed slot patch antenna is investigated. The proposed antenna can operate at 1.575 GHz for Global Positioning System and 2.4 GHz for Wi-Fi system with the corresponding polarizations. A 90 ° hybrid coupler chip was used to excite the right-hand circular polarization required for optimum GPS performance. For the high frequency band, a pair of linearly polarized arc-shaped slots radiating at 2.4 GHz are embedded in the circular patch. The operating bandwidths of the antenna are enhanced by the multilayered geometry, and the capacitive disks feedpoints placed between the substrate layers. The measured impedance bandwidths at the lower and high bands are 320 and 230 MHz, respectively. The measured 3-dB axial-ratio bandwidth is 120 MHz.

Type: Article
Title: A Dual-Band Dual-Polarization Slot Patch Antenna for GPS and Wi-Fi Applications
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/LAWP.2015.2448536
Publisher version: http://dx.doi.org/10.1109/LAWP.2015.2448536
Language: English
Additional information: Copyright © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Capacitive feeding, dual-polarization, GPS, slot patch antenna, Wi-Fi
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1478621
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