Compact CPW-fed tri-band stepped monopole antenna with inverted-L strip for WLAN/WiMAX applications

Author

Yuanfu Liu ; Peng Wang ; Hao Qin

Author_Institution

Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2014

fDate

12-15 Aug. 2014

Firstpage

1244

Lastpage

1247

Abstract

A compact coplanar waveguide (CPW)-fed tri-band stepped monopole antenna with inverted-L strip for WLAN/WiMAX applications is proposed and investigated in this paper. The proposed antenna is composed of a stepped monopole and an inverted-L strip, which occupies a very compact size of 23 × 16 mm² including the ground plane. By adjusting the dimensions of the stepped monopole, inverted-L strip and ground plane, three desired resonant frequencies can be achieved and tuned independently. The antenna exhibits three resonances covering the 2.4/5.2/5.8 GHz WLAN bands and 3.5/5.5 GHz WiMAX bands. Details of the antenna design, simulation, and measurement results are presented and discussed. The proposed antenna shows nearly omnidirectional radiation characteristics and reasonable gains in the operating bands. The simple structure, compactness and uniplanar design make it easy to be integrated within the portable device for wireless communication.

Keywords

WiMax; antenna feeds; antenna radiation patterns; coplanar waveguides; monopole antennas; multifrequency antennas; omnidirectional antennas; wireless LAN; WLAN-WiMAX application; antenna design; antenna measurement; antenna simulation; compact CPW-fed tri-band stepped monopole antenna; coplanar waveguide; frequency 2.4 GHz; frequency 3.5 GHz; frequency 5.2 GHz; frequency 5.5 GHz; frequency 5.8 GHz; ground plane; inverted-L strip; omnidirectional radiation characteristics; portable device; resonant frequencies; uniplanar design; wireless communication; Antenna measurements; Antenna radiation patterns; Resonant frequency; Slot antennas; WiMAX; Wireless LAN; WLAN; WiMAX; monopole antenna; tri-band;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Packaging Technology (ICEPT), 2014 15th International Conference on

Conference_Location

Chengdu

Type

conf

DOI

10.1109/ICEPT.2014.6922869

Filename

6922869