A Miniaturized Planar Monopole Antenna with Dual Band-Notched Function for UWB Applications

LIU A-xuan; CHEN Lei; ZHONG Xian-jiang; LIU Shu-fang

doi:10.3969/j.issn.0372-2112.2016.10.030

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A Miniaturized Planar Monopole Antenna with Dual Band-Notched Function for UWB Applications

更新时间：2025-07-16

- A Miniaturized Planar Monopole Antenna with Dual Band-Notched Function for UWB Applications
- Acta Electronica Sinica Vol. 44, Issue 10, Pages: 2495-2500(2016)
- 作者机构：
  
  西安电子科技大学天线与微波技术国家重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2016.10.030
  CLC： TN821
- Published：2016
- 稿件说明：
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LIU A-xuan, CHEN Lei, ZHONG Xian-jiang, et al. A Miniaturized Planar Monopole Antenna with Dual Band-Notched Function for UWB Applications[J]. Acta Electronica Sinica, 2016, 44(10): 2495-2500.
DOI：

LIU A-xuan, CHEN Lei, ZHONG Xian-jiang, et al. A Miniaturized Planar Monopole Antenna with Dual Band-Notched Function for UWB Applications[J]. Acta Electronica Sinica, 2016, 44(10): 2495-2500. DOI： 10.3969/j.issn.0372-2112.2016.10.030.

摘要

本文设计了一种具有双频陷波特性的小型化平面单极子天线.该天线由开有型与W型缝隙的辐射贴片和一对L型分支组成.L型分支的作用是能够激励额外谐振，从而增加阻抗带宽，型和W型缝隙能够实现双陷波特性.该天线可以实现超过130%的带宽（2.77~13.62 GHz），最大的特点是具有12181.6 mm

的小型化尺寸.最终的仿真和测试结果显示其在整个超宽带频段内具有良好的陷波特性、增益和全向辐射特性.

Abstract

A novel miniaturized planar monopole antenna for ultra-wideband (UWB) applications with dual band-notched function is proposed in this paper.The proposed antenna consists of an ordinary square radiating patch with a -shaped slot

a modified W-shaped slit and a pair of L-shaped branches.By adding the pair of L-shaped branches

additional resonances are excited and wider impedance bandwidth can be produced.To generate dual band-notched characteristics

a -shaped slot in the radiating patch surrounded by a modified W-shaped slit is etched.The antenna provides a wide usable fractional bandwidth of more than 130% (2.77-13.62GHz).In addition

the designed antenna has a small size of 12181.6mm

while showing the band-rejection performance

covering all the 3.5/5.5-GHz WiMAX

4-GHz C-bands and

5.2/5.8-GHz WLAN.Simulated and measured results show good band-notched functions

stable gain and nearly omnidirectional radiation patterns of the proposed antenna over the entire UWB frequency.

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