Circularly Polarized Metasurface Antenna Based on the Theory of Characteristic Mode
| Autor: | Xi Gao, Guowei Tian, Xiongbin Wu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
business.industry Bandwidth (signal processing) Mode (statistics) 020206 networking & telecommunications 02 engineering and technology Radiation 021001 nanoscience & nanotechnology Polarization (waves) Square (algebra) Optics 0202 electrical engineering electronic engineering information engineering Antenna (radio) 0210 nano-technology business Electrical impedance Circular polarization |
| Zdroj: | 2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT). |
| DOI: | 10.1109/iceict51264.2020.9334291 |
| Popis: | A circularly polarized (CP) metasurface antenna is proposed in this paper. The metasurface is an array of subwavelength square patches. The characteristic modal of metasurface is analyzed by the theory of characteristic mode (TCM), and the desired characteristic mode is selected to form circular polarization radiation. Then, a proper feeding network is further empolyed to form CP radiation. Based on these concepts, an antenna with low profile is designed. The simulated results show that the impedance and axial-ratio(AR) bandwidths are 1.95 GHz and 1.05 GHz respectively, and their relative bandwidths are respectively 34.8% and 18.8%. Moreover, the antenna average gain is 6.25 dBi in the whole axial-ratio bandwidth. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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