Enhanced Bandwidth of Small Square Monopole Antenna by using Inverted U-shaped Slot and Conductor-Backed Plane

被引：0
|
作者：
Ojaroudi, N. [1 ]
Ojaroudi, M. [2 ]
Amiri, Sh [3 ]
机构：
[1] Shahid Rajaee Teacher Training Univ, Fac Elect & Comp Engn, Tehran, Iran
[2] Islamic Azad Univ, Ardabil Branch, Dept Elect Engn, Young Res Grp, Ardebil, Iran
[3] Dept Iranian Res Org Sci & Technol IROST, Tehran, Iran
来源：
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL | 2012年 / 27卷 / 08期
关键词：
Square Monopole Antenna; Inverted U-Shaped Structure; Ultra Wide-Band Systems; NOTCH;
D O I：
暂无
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：
This paper, presents a novel multi-resonance monopole antenna for ultra wideband applications. The proposed antenna consists of a square radiating patch with an inverted U-shaped slot and a ground plane with an inverted U-shaped conductor-backed plane, which leads to a wide usable fractional bandwidth of more than 135% (2.9-15.1 GHz). By cutting a modified inverted U-shaped slot with variable dimensions on the radiating patch and also by inserting an inverted U-shaped conductor-backed plane, additional resonances are excited and hence much wider impedance bandwidth can be produced, especially at the higher band. The designed antenna has a small size of 12x18 mm(2), or about 0.15 lambda x 0.25 lambda at 4.2 GHz (the first resonance frequency). Simulated and experimental results obtained for this antenna show that it exhibits good radiation behavior within the UWB frequency range.
引用
收藏
页码：685 / 690
页数：6
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