TY - JOUR
T1 - High Scanning Rate Asymmetrical Dual-Beam Leaky Wave Antenna Using Sinusoidally Modulated Reactance Superposing Surface
AU - Peng, Zhen
AU - Yang, Wanghui
AU - Shi, Shuhai
AU - Jiang, Mei
AU - Gao, Jianjun
AU - Zhai, Guohua
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022/12/1
Y1 - 2022/12/1
N2 - A seamless scanning dual-beam leaky-wave antenna (LWA) suited for multiobject detecting and tracking without blindness exhibits potential applications in wireless communication and radar systems. The beam scanning rate is a key indicator to measure the scanning performance of LWA. However, the high scanning rate dual-beam LWA with continuous scanning is seldom considered in the published literature. Defined first as the sum of the scanning rate of each beam in this communication, a novel asymmetrical dual-beam LWA with a high scanning rate of 12.9 is then proposed based on the combination of a half-mode substrate-integrated waveguide (HMSIW)-surface plasmon polaritons (SPPs) structure and a sinusoidally modulated reactance superposing surface (SMRSS) technique. The hi gh scanning rate is attributed to the dispersion enhancement of the slotted HMSIW-SPP unit, while periodic modulation superposed and uniform slots etched on the top and bottom layers, respectively, contribute to the asymmetrical dual-beam continuous scanning. As an example, an X-band asymmetrical dual-beam LWA is implemented and measured. Over the band of 8.65-9.5 GHz [9.3% fractional bandwidth (BW)], the proposed dual-beam LWA achieves a seamless beam scanning from -65° to -2° and from -6° to +51°, respectively.
AB - A seamless scanning dual-beam leaky-wave antenna (LWA) suited for multiobject detecting and tracking without blindness exhibits potential applications in wireless communication and radar systems. The beam scanning rate is a key indicator to measure the scanning performance of LWA. However, the high scanning rate dual-beam LWA with continuous scanning is seldom considered in the published literature. Defined first as the sum of the scanning rate of each beam in this communication, a novel asymmetrical dual-beam LWA with a high scanning rate of 12.9 is then proposed based on the combination of a half-mode substrate-integrated waveguide (HMSIW)-surface plasmon polaritons (SPPs) structure and a sinusoidally modulated reactance superposing surface (SMRSS) technique. The hi gh scanning rate is attributed to the dispersion enhancement of the slotted HMSIW-SPP unit, while periodic modulation superposed and uniform slots etched on the top and bottom layers, respectively, contribute to the asymmetrical dual-beam continuous scanning. As an example, an X-band asymmetrical dual-beam LWA is implemented and measured. Over the band of 8.65-9.5 GHz [9.3% fractional bandwidth (BW)], the proposed dual-beam LWA achieves a seamless beam scanning from -65° to -2° and from -6° to +51°, respectively.
KW - Dual beam
KW - half-mode substrate-integrated waveguide (HMSIW)
KW - high scanning rate
KW - leaky wave antenna (LWA)
KW - sinusoidally modulated reactance superposing surface (SMRSS)
UR - https://www.scopus.com/pages/publications/85139508601
U2 - 10.1109/TAP.2022.3209181
DO - 10.1109/TAP.2022.3209181
M3 - 文章
AN - SCOPUS:85139508601
SN - 0018-926X
VL - 70
SP - 12258
EP - 12263
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 12
ER -