A Wideband L-Probe Fed Conformal Antenna Array Using Metasurface
oleh: S. Huang, C. F. Zhou, J. X. Sun, S. S. Yuan, H. Li, X. M. Ding, Q. Wu, X. B. Tang
| Format: | Article |
|---|---|
| Diterbitkan: | IEEE 2021-01-01 |
Deskripsi
A wideband conformal metasurface (MTS) antenna array with high gain is designed in this paper. The cooperation of the MTS and L-probe feeding of the antenna element realizes a wide bandwidth of 28.1%, which exhibits only one resonant mode. Then, the planar and conformal arrays consisting of <inline-formula> <tex-math notation="LaTeX">$4\times 8$ </tex-math></inline-formula> MTS antenna elements are investigated. The planar and conformal antenna arrays are fabricated and measured. The measured result shows that when the bending angle <inline-formula> <tex-math notation="LaTeX">$\theta \le 10^{\circ }$ </tex-math></inline-formula>, unidirectional radiation and high gain can be maintained. The planar antenna array shows a measured impedance bandwidth (IMBW) of 2.81-3.76 GHz (0.95 GHz, 29.7%), with a peak gain of 22.2 dBi, and the conformal antenna array for the bending angle of 10° exhibits an IMBW of 2.8-3.63 GHz (0.82 GHz, 25.6%), with a peak gain of 20.2 dBi.