| Autor: |
Dandan Liu, Qinqin Sun, Wei Wu |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 12, Pp 68278-68284 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2024.3400997 |
| Popis: |
Two patch antennas that can generate two or four orbital angular momentum (OAM) modes are designed and verified to work at frequency band from 2.2GHz to 2.7GHz. One antenna is composed of two single OAM mode monopole patch antenna systems with one common ground plane and it can generate two OAM modes: mode $l =1$ and mode $l = -1$ . This antenna is designed, simulated, fabricated and tested. Its reflection coefficients, radiation patterns, phase distributions and isolation between two different OAM mode channels are obtained. Phase distributions of the two OAM modes are measured to show the effectiveness of the antenna to generate two OAM modes. Channel isolation between these two OAM modes is 25.72dB at 2.598GHz and more than 15dB at the frequency band from 2.585GHz to 2.62GHz. The measurement results have shown that this two-OAM-mode antenna can produce two isolated channels at the same frequency band. Another monopole patch antenna has been designed and verified by simulation to be able to generate four OAM modes. This four-OAM-mode antenna provides an example that this kind of multiplexed monopole patch antennas can multiplex more OAM modes together. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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