Abstract
In this work, a decoupling design for a wideband millimeter wave (mmW) multiple input multiple output (MIMO) antenna is proposed based on a current cancellation model. First, a dual-element coupling model is established through coupled current analysis. Subsequently, a metal dumbbell-shaped stub (Bar-H) is introduced between the two elements to achieve current cancellation, enabling the antenna to attain an operational bandwidth spanning 26-30 GHz. The | S21| across the operating bandwidth is maintained below -17.5 dB, with values below -20 dB in the 28.5-30 GHz range. Finally, an eight-element MIMO antenna is designed and analyzed for decoupling performance, along with array beam scanning. The results demonstrate that the proposed decoupling method is also applicable to multi-element MIMO arrays.
| Original language | English |
|---|---|
| Title of host publication | 2025 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2025 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Edition | 2025 |
| ISBN (Electronic) | 9798331525736 |
| DOIs | |
| Publication status | Published - 2025 |
| Event | 16th International Conference on Microwave and Millimeter Wave Technology, ICMMT 2025 - Xi�an, China Duration: 19 May 2025 → 22 May 2025 |
Conference
| Conference | 16th International Conference on Microwave and Millimeter Wave Technology, ICMMT 2025 |
|---|---|
| Country/Territory | China |
| City | Xi�an |
| Period | 19/05/25 → 22/05/25 |
Keywords
- Array decoupling
- current cancellation model
- multiple-input multiple-output (MIMO) antenna
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