摘要
Two wide-angle scanning linear array antennas (E-and H-planes scanning linear array antenna) are studied and presented. In order to improve the wide-angle scanning performance of the phased array antenna, a wide beamwidth U-shaped microstrip antenna with the electric walls is designed. The wide-angle scanning linear array antennas are studied in the frequency band from 3.2 to 3.8 GHz. The 3 dB beamwidth of the antenna is 140° in the E-plane scanning linear array center and 220° in the H-plane scanning linear array center at 3.5 GHz. The main beams of the H-plane scanning linear array antenna can scan from-90° to +90° with a gain fluctuation less than 3 dB and a maximum sidelobe level (SLL) less than-5 dB. Simultaneously, the main beam of the E-plane scanning linear array antenna can scan from-75° to +75° with a gain fluctuation less than 3 dB and SLL less than-5 dB. The H-and E-planes scanning linear array antennas with nine elements are fabricated and tested. The measured results have a good agreement with the simulation results.
| 源语言 | 英语 |
|---|---|
| 文章编号 | 8064739 |
| 页（从-至） | 450-455 |
| 页数 | 6 |
| 期刊 | IEEE Transactions on Antennas and Propagation |
| 卷 | 66 |
| 期 | 1 |
| DOI | |
| 出版状态 | 已出版 - 1月 2018 |