Abstract
A K-band low-profile broadband circularly polarized (CP) phased array antenna (PAA) with a wide axial ratio (AR) bandwidth for millimeter-wave communication systems is designed in this work. The radiating unit is a stacked patch antenna with a stripline coupler feeding network to ensure the AR performance. The -10 dB impedance bandwidth and 3 dB axial ratio (AR) bandwidth overlap in the frequency range from 22.83 to 28.08 GHz. Subarray rotation technology is applied to the 8 × 8 array, ensuring the AR performance. Simulated results show a wide scanning range of up to 57°, 53°, and 48° at 23,25.5, and 28 GHz, respectively, with a scanning loss of less than 3 dB.
| Original language | English |
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| 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 |
| Externally published | Yes |
| 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
- beam scanning
- circularly polarized
- directional coupler
- Phased array antenna (PAA)
- stacked patch