Ultrawideband suspended plate antenna with enhanced impedance and radiation performance

被引：30

作者：

Low, Xue Ni ^{[1
]}

Chen, Zhi Ning ^{[2
]}

Toh, Wee Kian ^{[2
]}

机构：

[1] Nanyang Technol Univ, Singapore, Singapore

[2] Inst Infocomm Res, Singapore 138632, Singapore

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2008年 / 56卷 / 08期

关键词：

broadband antennas; microstrip patch antennas; suspended plate antennas (SPAs); ultrawideband (UWB) antennas;

D O I：

10.1109/TAP.2008.927549

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：

We describe an ultrawideband (UWB) suspended plate antenna (SPA) with enhanced impedance and radiation performance. This antenna consists of two layers. The bottom plate is suspended above a ground plane and fed by a tapered down feeding strip. The top layer consists of four identical radiating plates, each connected to the bottom plate by a vertical strip. The design is optimized numerically and validated experimentally. The measured results show that the antenna achieves an enhanced impedance bandwidth of 72.7% (2.8-6.0 GHz) for VSWR <= 2 with stable radiation performance in terms of gain from 8.0-9.9 dBi, direction of maximum radiation, and high copolarization-to-cross-polarization ratio of > 12 dB across the lower UWB band of 3.1-4.8 GHz.

引用

页码：2490 / 2495

页数：6

共 36 条

[1] Wide-band planar monopole antennas [J].