Bandwidth Enhancement of SIW Horn Antenna Loaded With Air-Via Perforated Dielectric Slab

被引：95

作者：

Cai, Yang ^{[1
]}

Qian, Ping ^{[1
]}

Zhang, Ying-Song ^{[1
]}

Jin, Jun ^{[1
]}

Cao, Wen-Quan ^{[1
]}

机构：

[1] PLA Univ Sci & Technol, Coll Commun Engn, Nanjing 210007, Jiangsu, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2014年 / 13卷

基金：

美国国家科学基金会;

关键词：

Air-via; bandwidth enhancement; dielectric slab; substrate integrated waveguide (SIW);

D O I：

10.1109/LAWP.2014.2312917

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：

A substrate integrated waveguide (SIW) horn antenna loaded with air-via perforated dielectric slab for bandwidth enhancement is proposed in this letter. The narrow impedance bandwidth of the planar horn antenna is mainly resulting from the discontinuity between the substrate and air. By simply drilling air-vias with different diameters in the substrate extended from the horn aperture, a smooth transition from substrate to air can be achieved, which can enhance the impedance bandwidth of the antenna in much degree. Measured results show that the enhanced impedance bandwidth of 40% from 16 to 24 GHz is obtained with the return loss vertical bar S-11 vertical bar below -10 dB. In addition, stable radiation patterns are observed over the entire operating band.

引用

页码：571 / 574

页数：4

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