Abstract
This paper presents an investigation into the near-field phase distribution of a two-dimensional (2D) leaky-wave (LW) antenna enhanced by a phase modulation metasurface (PMM). A single-layer PMM, operating at 11 GHz, is meticulously designed to match the frequency of the 2D LW antenna. Based on the Huygens principle, the PMM is asymmetrically printed on both sides of a dielectric substrate, effectively addressing phase errors across the antenna aperture. This configuration yields a significant improvement in the near-field phase uniformity, enhancing the antenna's overall performance. The proposed design achieves a far-field peak directivity of 19 dBi and an aperture efficiency of 55%, demonstrating the potential of phase modulation metasurfaces in optimizing beam focusing for 2D leaky-wave antennas.
| Original language | English |
|---|---|
| Title of host publication | 2025 6th Australian Microwave Symposium |
| Subtitle of host publication | conference proceedings |
| Place of Publication | Piscataway, NJ |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Pages | 67-68 |
| Number of pages | 2 |
| ISBN (Electronic) | 9798350379969 |
| ISBN (Print) | 9798350379976 |
| DOIs | |
| Publication status | Published - 2025 |
| Event | 6th Australian Microwave Symposium, AMS 2025 - Gold Coast, Australia Duration: 10 Feb 2025 → 11 Feb 2025 |
Conference
| Conference | 6th Australian Microwave Symposium, AMS 2025 |
|---|---|
| Country/Territory | Australia |
| City | Gold Coast |
| Period | 10/02/25 → 11/02/25 |
Keywords
- 2D leaky wave (LW) antenna
- phase modulation metasurface (PMM)
- peak directivity
- near-field phase distribution
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