A CPW-Fed Octagon - Shaped Aperture Antenna For Lower Band UWB Applications

被引：0
|
作者：
Gunavathi, N. [1 ]
Pandeeswari, R. [1 ]
Raghavan, S. [1 ]
机构：
[1] Natl Inst Technol, Dept Elect & Commun Engn, Tiruchirappalli 620015, Tamil Nadu, India
来源：
2009 ANNUAL IEEE INDIA CONFERENCE (INDICON 2009) | 2009年
关键词：
CPW fed; Irregular octagon; Lower band UWB; Octagon shape; Polygon; UWB; MONOPOLE ANTENNA;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
A compact, CPW- fed octagon shape aperture antenna for lower band UWB applications is presented. The antenna consists of a irregular octagon (polygon with 8 sides) aperture on a printed circuit board, ground plane and a octagon-shaped exciting stub. Initially the proposed antenna is designed with rectangular aperture and then the rectangular shaped aperture is converted into irregular octagon shaped aperture by inserting a isosceles right angled triangular metallic shape in the corners of rectangular aperture to increase the impedance matching in the required bandwidth. The octagon shaped stub and polygon aperture (slot) are simple and has less parameter, which are convenient to optimize. The proposed antenna is designed on an inexpensive FR4-epoxy substrate with dielectric constant epsilon(r) =4.4 and with a size 30mmx30mmx1.5mm. The presented antenna has a impedance bandwidth from 2.8GHz - 4.9GHz (VSWR<2), gain from 1.5dBi to 3.9dBi and directivity from 3.5dBi to 4.4dBi.
引用
收藏
页码：17 / 20
页数：4
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