Three-Port Ultrawideband MIMO Slot Antenna With High Isolation
A compact three-port ultrawideband multiple-input–multiple-output (MIMO) antenna with high isolation is presented. A semi-open X-shaped slot antenna is fed by a T-shaped microstrip line to realize ultrawideband performance. Then, two L-shaped slot antennas are embedded into the designed X-shaped slot antenna to attain MIMO performance. It is worth highlighting that the loading of the L-shaped slot antennas does not increase the size of the X-shaped slot antenna, nor does it affect the antenna performance. Additionally, a decoupling scheme including two pairs of open-end slots is used to notably improve the isolations among the ports. By employing this method, a compact three-port MIMO antenna is designed. It has an ultrawide bandwidth of 115%, covering 1.70 GHz to 6.31 GHz for the reflection coefficient <−10 dB. The isolations among the ports are beyond 20 dB.
Authors
- Liang Hua Ye (ORCID: https://orcid.org/0000-0001-8238-4607)
- Ru Long Li
- Zhiqiang Chen (ORCID: https://orcid.org/0000-0002-0793-0089)
- Jian‐Feng Li (ORCID: https://orcid.org/0000-0003-4271-7774)
- Fan Jiang (ORCID: https://orcid.org/0000-0002-9867-7639)
Institutions
- Guangdong University of Technology (CN)
Publication Details
- Journal
- IEEE Antennas and Wireless Propagation Letters
- Published
- 2024-08-23
- DOI
- https://doi.org/10.1109/lawp.2024.3449068
- Citations
- 2
- Primary Topic
- Antenna Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 2.60
Funders
- National Natural Science Foundation of China