A Wideband Conformal End-Fire Antenna Array Mounted on a Large Conducting Cylinder

作者：Wang, Ping^*; Wen, Guangjun; Zhang, Haobin; Sun, Yuanhua

来源：IEEE Transactions on Antennas and Propagation, 2013, 61(9): 4857-4861.

DOI：10.1109/TAP.2013.2259789

• Conformal antenna
• end-fire antenna
• radome-antenna system
• Vivaldi antenna array

The radiation characteristics of a wideband conformal end-fire antenna array mounted on a large conducting cylinder are investigated in this communication. By employing balanced Vivaldi antenna element, the antenna array has ultra-wide bandwidth, low cross-polarization levels, and wide 3 dB beam-width. It is shown that using a larger antenna height, shorter distance away from the edge of a hollow conducting cylinder, and bigger slant angle of antenna element leads to better end-fire radiation performances. Measured radiation patterns are compared with simulated values and a good agreement is observed. A radome-antenna system is also studied and it is found that the antenna has a larger beam-pointing angle in the H-plane owing to the electromagnetic waves reflected from a dielectric radome surface, while retaining its symmetric pattern in the E-plane. These findings may provide useful insights and guidelines for the design of large radome-antenna systems mounted a cylindrical platform.

• 出版日期2013-9
• 单位电子科技大学; 重庆三峡学院