| Autor: |
Nghia Nguyen-Trong, Christophe Fumeaux |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 947-957 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2637-6431 |
| DOI: |
10.1109/OJAP.2023.3316702 |
| Popis: |
A pattern-diversity antenna with 7 ports is proposed for multiple-input multiple-output (MIMO) applications. Orthogonal modes are utilized to achieve high isolation among all 7 ports in a relatively compact shared volume. As distinguishing feature from previous works, the concept of tripolarization is generalized, allowing to design antennas with a large number of orthogonal patterns in a single multi-port device. Based on this approach, a simple structure is proposed with only two printed circuit boards (PCB) separated by an air gap. The proposed multi-port antenna can provide a high degree of pattern and polarization diversity for the coverage of the whole upper hemisphere space. Measurements confirm the following results for the fabricated prototype: 7.7% impedance bandwidth, higher than 20 dB isolation among all ports with an antenna size of $(0.61^{2} \times \pi \times 0.061) \lambda _{L}^{3}$ where $\lambda _{L}$ is the free-space wavelength at the lowest operating frequency. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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