Dual-Port Phase Antenna and Its Application in 1-D Arrays to 2-D Scanning
| Autor: | Ronghong Jin, Han Zhou, Weinan Gao, Silei Yang, Junping Geng, Chaofan Ren, Erwei Liu, Xianling Liang, Jing Zhang, Xuxu Cheng, Chong He, Kun Wang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 69:7508-7520 |
| ISSN: | 1558-2221 0018-926X |
| Popis: | A novel dual-port phase antenna is proposed to realize 2-D scanning. The antenna consists of two monopoles on both sides and a fishbone structure in the middle. By changing the phase difference ${\Delta \varphi }$ between two monopoles, energy is coupled to the proposed structure, exciting different degrees of superposition of even and odd modes. The continuous switching from the broadside lobe to the end-fire lobe is realized, and it has the characteristic of 2-D scanning. Furthermore, to provide an in-depth insight into the 2-D scanning mechanism, two linear arrays (Array 2 and Array 3) based on the proposed antenna element and a generalized principle of pattern multiplication (GPPM) are developed. The fabricated Array 2 can offer scanning angles of 0°–73° along the $\theta $ -direction with the gain of 6.5–10.4 dBi and 90°–140° along the $\Phi $ -direction with the gain of 6.1–11.7 dBi. Its scanning coverage of 3 dB beamwidth is $0^{\circ } , $0^{\circ } . The manufactured Array 3 can scan 0°–90° along $\theta $ -direction with the gain of 8.2–11.1 dBi and 50°–90° along the $\Phi $ -direction with the gain of 6–9.36 dBi, and its 3 dB coverage of the main beam scanning is $0^{\circ } , $0^{\circ } . Consequently, the proposed antenna and GPPM can be readily extended to wide-angle scanning phased arrays. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|