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- Title
UWB MIMO antenna implemented with orthogonal quasi‐circular slot dipole radiators.
- Authors
Tirado‐Méndez, José Alfredo; Gómez‐Villanueva, Ricardo; Jardón‐Aguilar, Hildeberto; Fritz‐Andrade, Erik; Rangel‐Merino, Arturo
- Abstract
In this paper, a very low‐profile two‐port ultra‐wideband antenna for multiple input‐multiple output applications is proposed. The antenna is implemented by using two orthogonal quasi‐circular slot dipole radiators fed by coaxial lines. The antenna performs from 2 to 10 GHz, with an average peak‐gain of 4 dB, and high port isolation, with values around S21 = −20 dB and below. The radiation patterns of both antennas are opposite to each other and hence, the diversity gain reaches values around 20 dB. The low inter‐port coupling and low correlation are verified by obtaining the envelope correlation coefficient, which is lower than 0.003. These calculations were made by the S‐parameter and far‐field methods. The total active reflection coefficient shows that the antenna operative bandwidth does not change for different input signals with random phases, preserving the operation from 2 to 10 GHz. The antenna performance is compared to different state of the art slot configurations, showing advantages to previously published work.
- Subjects
ULTRA-wideband antennas; ANTENNA radiation patterns; REFLECTANCE; SLOT antennas; COAXIAL cables; OMNIDIRECTIONAL antennas
- Publication
International Journal of RF & Microwave Computer-Aided Engineering, 2019, Vol 29, Issue 12, pN.PAG
- ISSN
1096-4290
- Publication type
Article
- DOI
10.1002/mmce.21974