A Low-Profile Wideband Dual-Resonance Tri-Port MIMO Antenna
| Autor: | Li Ying Nie, Buon Kiong Lau, Hanieh Aliakbari, Shang Xiang, Bao Wang, Xian Qi Lin |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | IEEE Transactions on Antennas and Propagation; 70(6), pp 4866-4871 (2022) |
| ISSN: | 1558-2221 0018-926X |
| DOI: | 10.1109/tap.2021.3139647 |
| Popis: | A low-profile wideband tri-polarized MIMO antenna is proposed in this paper. Based on characteristic mode analysis of a circular patch, four slots are etched symmetrically on the patch to transform the high-order monopole-like modes into broadside modes with lower resonant frequencies. Four sets of shorting pins are also applied to simultaneously adjust the resonant frequencies of the monopole-like modes and broadside fundamental modes of the patch. The effects of the slots and the shorting pins on these modes are analyzed in detail. Three dual-resonance ports with high isolation are achieved by exciting three pairs of orthogonal modes of the patch. The proposed antenna is wideband with respect to its profile (bandwidth/height = 216), as facilitated by the dual-resonance property of each port. Experimental results show that the proposed antenna features high port isolation (> 35 dB) and high gain (> 5.58 dB). The proposed low-profile wideband tri-port antenna can be applied in highly integrated MIMO systems. |
| Databáze: | OpenAIRE |
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