A novel leaky-wave antenna combining an image NRD guide and a strip circuit

被引：2
|
作者：
Gómez-Tornero, JL [1 ]
Pascual-García, J [1 ]
Alvarez-Melcon, A [1 ]
机构：
[1] Tech Univ Cartagena, Dept Tecnol Informac & Comunicac, Cartagena 30202, Spain
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2005年 / 4卷
关键词：
leaky-wave antennas (LWAs); millimeter wave antennas; NRD (nonradiative dielectric) guide; printed-circuit technology; tapered antennas;
D O I：
10.1109/LAWP.2005.855637
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter presents a novel leaky-wave antenna which combines an image NRD (nonradiative dielectric) guide and a printed strip circuit. The proposed structure allows for an easier, cheaper and more flexible tapering mechanism than all previous leaky-wave antennas in NRD technology. The working mechanism is explained, and two different tapering strip-circuit topologies are proposed. Cosine tapered illuminations are designed using a two-dimensional leaky-mode analysis technique. Simulations with high-frequency structure simulator (HFSS) three-dimensional analysis are presented for validation purposes. Also, the influence of the feeding transitions for each printed-circuit design is studied. Results show the feasibility of one of the proposed designs, leading to a tapered radiation pattern with sidelobes level below -20 dB.
引用
收藏
页码：289 / 292
页数：4
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