Compact ultra-wideband antenna with band-notched based on defected ground structure

The Journal of Engineering

Hamed Tadayon¹  Reza Karimian¹ 

[1] EE department, Iran University of Science and Technology (IUST), Tehran 1684613114, Iran

关键词: frequency 3.3 GHz to 4 GHz;    omnidirectional radiation patterns;    modified ground structure;    optimal parameters;    parallel strip patch;    H-plane;    b;    notched;    frequency 3.5 GHz;    compact ultrawideb;    antenna;    defected ground structure;    planar monopole ultrawideb;    antenna;    parasitic element;    frequency 2.6 GHz to 12 GHz;    tree shaped radiation patch;   

DOI  :  10.1049/joe.2013.0122

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

A simple and very compact planar monopole ultra-wideband antenna with a 3.5 GHz band rejection is proposed in this Letter. The compact antenna is etched on an FR4 substrate with the size of 14 × 16 × 1 mm3, consists of a tree-shaped radiation patch with modified ground structure. To reject certain frequency band, a pair of parallel strip patch, acting as a parasitic element is used. Prototype of the proposed antenna was constructed and measured. The measured impedance bandwidth of the realised antenna with optimal parameters is from 2.6 to 12 GHz (128%) for voltage standing wave ratio <2 with an unwanted band notched from 3.3 to 4 GHz. Moreover, the antenna has good omnidirectional radiation patterns in the H-plane.

【 授权许可】

CC BY