A Wideband End-Fire Conformal Vivaldi Antenna Array Mounted on a Dielectric Cone

Authors

Zengrui Li, Communication University of China
Xiaole Kang, Communication University of ChinaFollow
Jianxun Su, Communication University of China
Qingxin Guo, Communication University of China
Yaoqing (Lamar) Yang, University of Nebraska - LincolnFollow
Junhong Wang, Beijing Jiaotong University

Date of this Version

2016

Citation

International Journal of Antennas and Propagation Volume 2016, Article ID 9812642, 11 pages

Comments

Copyright © 2016 Zengrui Li et al.

Open access

http://dx.doi.org/10.1155/2016/9812642

Abstract

The characteristics of a novel antipodal Vivaldi antenna array mounted on a dielectric cone are presented. By employing antipodal Vivaldi antenna element, the antenna array shows ultrawide bandwidth and end-fire radiation characteristics.Our simulations show that the cone curvature has an obvious influence on the performance of the conformal antenna, in terms of both the bandwidth and the radiation patterns. The thickness and permittivity of the dielectric cone have an effect on the bandwidth of the conformal antenna. Measurement results of both single antenna and conformal antenna array show a good agreement with the simulated results. The measured conformal antenna can achieve a −10 dB |𝑆₁₁| with bandwidth of 2.2–12GHz and demonstrate a typical endfire radiation beam.These findings provide useful guidelines and insights for the design of wideband end-fire antennas mounted on a dielectric cone.