Wideband antenna with wideband harmonic suppression using non-uniform defected ground structure

Author

Damaj, L. ; Begaud, Xavier ; Lepage, Anne-Claire

Author_Institution

Commun. & Electron. Dept., Telecom ParisTech, Paris, France

fYear

2012

fDate

25-28 June 2012

Firstpage

1

Lastpage

4

Abstract

In this paper we present the design of a CPW-fed wideband bow-tie antenna with harmonic suppression using three non-uniform cascaded bow-tie DGS (defected ground structure) units. The total size of the antenna is 66×73mm² (0.44×0.48λ₀², where λ₀ is the free-space wavelength at the lowest operating frequency). DGS dimensions are optimized to suppress the second and the third harmonics bands. The proposed antenna is matched between 2 GHz and 5.4 GHz (92%), and the band between 7 GHz and 22 GHz (103.5%) is rejected. The antenna has an omnidirectional dipole-type radiation pattern over the whole frequency band.

Keywords

antenna feeds; antenna radiation patterns; bow-tie antennas; broadband antennas; coplanar waveguides; defected ground structures; dipole antennas; harmonics suppression; omnidirectional antennas; CPW-fed wideband bow-tie antenna; bandwidth 7 GHz to 22 GHz; cascaded bow-tie DGS unit; free-space wavelength; frequency 2 GHz to 5.4 GHz; nonuniform defected ground structure; omnidirectional dipole-type radiation pattern; wideband harmonic suppression; Broadband antennas; Dipole antennas; Harmonic analysis; Microwave filters; Power harmonic filters; Wideband; Active Integrated Antenna (AIA); Defected Ground Structure (DGS); Harmonic Suppressed Antenna (HSA); Low-Pass Filter (LPF); Wideband antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology and Applied Electromagnetics (ANTEM), 2012 15th International Symposium on

Conference_Location

Toulouse

Print_ISBN

978-1-4673-0290-6

Type

conf

DOI

10.1109/ANTEM.2012.6262379

Filename

6262379