具有一致方向图的紧凑型甚高频/超高频超宽带盘锥天线。

Compact VHF/UHF Ultrawideband Discone Antenna with Consistent Pattern.

作者信息

Li Guang, Zhang Fushun, Wang Bingnan

机构信息

National Key Laboratory of Microwave Imaging Technology, Chinese Academy of Sciences Aerospace Information Research Institute, Beijing 100090, China.

National Key Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi'an 710071, China.

出版信息

Sensors (Basel). 2024 Sep 23;24(18):6147. doi: 10.3390/s24186147.

DOI:10.3390/s24186147

PMID:39338892

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11435794/

Abstract

A compact VHF/UHF ultrawideband discone antenna with consistent patterns is proposed in this article. The proposed antenna consists of a disk, a modified cone, an inverted cone, four shorting probes, and two sleeves. To improve the radiation angular distortion at high frequencies, two sleeves are inserted into the discone antenna. Higher-order modes are suppressed, and ultrawideband consistent patterns are obtained without antenna size increasing. An inverted cone and four shorting probes are introduced to achieve broadband and profile reduction. An antenna prototype is fabricated and measured. The proposed antenna possesses consistent patterns in a 11.36:1 bandwidth. The pattern nulls is improved by 26.1 dB. The antenna occupies a cylindrical volume of 0.227 λ0 (D) and 0.096 λ0 (H). It is a competitive candidate for future in-vehicle communication systems.

摘要

本文提出了一种具有一致方向图的紧凑型甚高频/超高频超宽带盘锥天线。所提出的天线由一个圆盘、一个改进的圆锥、一个倒圆锥、四个短路探针和两个套筒组成。为了改善高频时的辐射角失真，在盘锥天线中插入了两个套筒。抑制了高阶模式，在不增加天线尺寸的情况下获得了超宽带一致方向图。引入倒圆锥和四个短路探针以实现宽带和外形尺寸减小。制作并测量了天线原型。所提出的天线在11.36:1的带宽内具有一致方向图。方向图零点改善了26.1 dB。该天线占据的圆柱形体积为0.227λ0（直径）和0.096λ0（高度）。它是未来车载通信系统的一个有竞争力的候选方案。