A novel compact monopole antenna with super wide bandwidth

2013 IEEE International Conference of IEEE Region 10 (TENCON 2013) Pub Date : 2013-10-01 DOI:10.1109/TENCON.2013.6718964

J. Qiu, Yuanqing Zhao

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Abstract

In this paper, a novel monopole antenna with a compact configuration is proposed, which can operate in the frequency range from 6.8GHz to 37.8GHz. The antenna consists of two main components. One is the two orthogonal half discs with a cavity inside each of them. The other is the circular metallic ground. Firstly, according to the traditonal theory [1], the dimension of each half disc can be determined preliminarily. Then, a cavity is set inside each disc. By using CST simulation software, the opitmal scales of the antenna, at last, can be obtained. From the simulated results, it can be seen that the bandwidth of the antenna is from 6.8GHz to 37.8GHz, meanwhile, the radiation patterns of the antenna stay almost contant over the entire bandwidth. More importantly, there is a dramatic decrease in the dimension of the proposed antenna, compared to the antennas reported in [2]. Hence, the strengths mentioned above contribute to a much wider range of potential application, especially the application in the radio spectrum detection, which demands the bandwidth of antennas to be as wide as possible.

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一种新型的超宽带单极天线

本文提出了一种结构紧凑的新型单极天线，其工作频率范围为6.8GHz ~ 37.8GHz。天线由两个主要部件组成。一个是两个正交的半圆盘，每个圆盘内部都有一个空腔。另一种是圆形的金属地面。首先，根据传统理论[1]，可以初步确定各半盘的尺寸。然后，在每个圆盘内设置一个腔。最后利用CST仿真软件，得到了天线的最优尺度。从仿真结果可以看出，天线的带宽范围为6.8GHz ~ 37.8GHz，同时天线的辐射方向图在整个带宽范围内基本保持不变。更重要的是，与[2]中报道的天线相比，所提出的天线的尺寸急剧减小。因此，上述优点有助于更广泛的潜在应用，特别是在无线电频谱检测中的应用，这要求天线的带宽尽可能宽。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)

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