Journal article
Magnetic field assisted beam-scanning leaky-wave antenna utilizing one-way waveguide
Neural Devices & Gas Photonics, Department of Electrical and Photonics Engineering, Technical University of Denmark1
Department of Electrical and Photonics Engineering, Technical University of Denmark2
Nanchang University3
Department of Photonics Engineering, Technical University of Denmark4
Fiber Sensors & Supercontinuum, Department of Photonics Engineering, Technical University of Denmark5
Northwestern Polytechnical University Xian6
Zhejiang University of Technology7
Structured Electromagnetic Materials, Department of Photonics Engineering, Technical University of Denmark8
We propose a Leaky-Wave Antenna (LWA) based on one-way yttrium-iron-garnet (YIG)-air-metal waveguide. We first analyze the dispersion of the LWA, showing the one-way feature and the radiation loss. Owing to the unique one-way dispersive property, the beam radiated from the LWA can have very narrow beam width, at the same time having large scanning angle.
The main beam angle obtained by full-wave simulation is consistent with our theoretical prediction with the aid of the dispersion. For a given frequency, we can realize continuous beam scanning by varying the magnetic field, where the 3 dB beam width is much narrower than previously demonstrated. Our results pave a new way to realize continuous angle scanning at a fix frequency for modern communications.
| Language: | English |
|---|---|
| Publisher: | Nature Publishing Group UK |
| Year: | 2019 |
| Pages: | 16777 |
| ISSN: | 20452322 |
| Types: | Journal article |
| DOI: | 10.1038/s41598-019-53431-8 |
| ORCIDs: | Hong, Lujun , Wang, Yazhou and Xiao, Sanshui |
