The Design of the Cooke Triplet Antenna in Terahertz Band

doi:10.1109/LAWP.2019.2940277

	The Design of the Cooke Triplet Antenna in Terahertz Band
	Liu, Zhe; Zhang, Dehai; Meng, Jin
刊名	IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
	2019
卷号	18 期号:10 页码:2199-2203
关键词	Antennas Diffraction Lenses Image resolution Propagation losses Gain Optical diffraction Aberration Cooke triplet diffraction multilens antenna quasi-optical method
ISSN号	1536-1225
DOI	10.1109/LAWP.2019.2940277
英文摘要	A Cooke triplet antenna used for near-field focusing is designed by a quasi-optical method. To design the Cooke triplet, we propose the quasi-optical method to reduce the aberration spot radius in the design step. The ray tracing method, calculating only the coordinates in the image plane rather than the field intensity, is used without considering the diffraction effect. The diffraction effect is taken into consideration only in the verification step. We get a conclusion that the essence of the aberration optimization is to optimize the phase distribution in the diffraction integral formula. In this case, only optimizing the aberrations without considering the diffraction effect is acceptable in the design step. While in the verification step, the diffraction is used to calculate the resolution of the Cooke triplet antenna. The field of view of the Cooke triplet is & x2212;18 & x00B0;& x223C;18 & x00B0; in simulation and & x2212;14 & x00B0;& x223C;14 & x00B0; in experiment. The feed sources can be positioned vertically to the optical axis in the image plane without the focal surface. The resolution of the off-axis beam is only 17 & x0025; lower than the resolution of the central beam whose resolution is less than 0.5 & x00A0;cm at the distance 0.37 & x00A0;m. The experiment agrees well with the simulation.
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/7186]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Liu, Zhe,Zhang, Dehai,Meng, Jin. The Design of the Cooke Triplet Antenna in Terahertz Band[J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS,2019,18(10):2199-2203.
APA	Liu, Zhe,Zhang, Dehai,&Meng, Jin.(2019).The Design of the Cooke Triplet Antenna in Terahertz Band.IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS,18(10),2199-2203.
MLA	Liu, Zhe,et al."The Design of the Cooke Triplet Antenna in Terahertz Band".IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS 18.10(2019):2199-2203.