A narrow-band circularly polarized leaky-wave antenna with open stopband suppressed

Xu, Shen-Da1; Guan, Dong-Fang2; Liu, Li2; Zhang, Qingfeng3; Xu, Hantao2; Yong, Shao-Wei2

2021-04-01

10.1002/mmce.22647

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING   影响因子和分区

1096-4290

1099-047X

In this paper, a narrow-band circularly polarized (CP) microstrip leaky-wave antenna (LWA) with open stopband suppressed is proposed. Coupled meandered slow-wave lines are adopted to realize narrow-band beam scanning. The asymmetric elements are employed as radiators to realize CP and zero-crossing scanning. We modulated the antenna by loading the ground inductance and asymmetric capacitors on the meandered slow-wave transmission line. The antenna consists of ten asymmetrical structural elements connected by coupling, the antenna size of L x W is 170 mm x 25 mm. In the operating band of 8.1 to 8.5 GHz, the measured scanning angel of the fabricated antenna is from -31 degrees to +6 degrees. The antenna axial ratios (ARs) are all below 3 dB at the corresponding beam directions. The gain is above 9.1 dBi and the relative bandwidth is only 4.8%. In the operating band, the radiation efficiency is above 60%. It has potential applications in radar detection and wireless communication systems for its simple and low-profile structure with CP, beam-scanning, and narrow-band performance.

circularly polarized (CP) leaky‐ wave antenna (LWA) narrow‐ band open stopband

SCI ; EI

英语

其他

National Natural Science Foundation of China[61 801 487] ; National Postdoctoral Program for Innovative Talents of China[BX20180370]

Computer Science ; Engineering

Computer Science, Interdisciplinary Applications ; Engineering, Electrical & Electronic

WOS:000644858500001

WILEY

20211810281771

Circular polarization ; Microstrip antennas ; Microwave antennas ; Radar antennas ; Scanning ; Tracking radar ; Traveling wave antennas ; Wave transmission

Electromagnetic Waves:711 ; Radar Systems and Equipment:716.2

ENGINEERING

Web of Science

1.Peoples Liberat Army Troops 94019, Hetian, Peoples R China
2.Natl Univ Def Technol, Coll Elect Sci & Technol, Changsha 410073, Peoples R China
3.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China

Xu, Shen-Da,Guan, Dong-Fang,Liu, Li,et al. A narrow-band circularly polarized leaky-wave antenna with open stopband suppressed[J]. INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING,2021,31.

Xu, Shen-Da,Guan, Dong-Fang,Liu, Li,Zhang, Qingfeng,Xu, Hantao,&Yong, Shao-Wei.(2021).A narrow-band circularly polarized leaky-wave antenna with open stopband suppressed.INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING,31.

Xu, Shen-Da,et al."A narrow-band circularly polarized leaky-wave antenna with open stopband suppressed".INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING 31(2021).