A Uniplanar Triple-Band Dipole Antenna Using Complementary Capacitively Loaded Loop

Author

Li-Ming Si ; Qing-Le Zhang ; Wei-Dong Hu ; Wei-Hua Yu ; Yu-Ming Wu ; Xin Lv ; Weiren Zhu

Author_Institution

Beijing Key Lab. of Millimeter Wave & Terahertz Technol., Beijing Inst. of Technol., Beijing, China

Volume

14

fYear

2015

fDate

2015

Firstpage

743

Lastpage

746

Abstract

A uniplanar compact metamaterial-inspired triple-band dipole antenna is designed and proposed for wireless local area network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) applications. By introducing two pairs of complementary capacitively loaded loop (CCLL) slots into a uniplanar bow-tie antenna, two notched bands can be generated to form a triple-band operation. The antenna is directly fed by a 50- Ω microstrip line and a microstrip-to-coplanar-stripline (CPS) transition as a wideband balun. Antenna parameters, including voltage standing-wave ratio (VSWR), radiation patterns, and gain, are obtained by numerical simulations and experimental measurements. The results show that the proposed antenna can provide triple-band operation at 2.21-2.77, 3.33-3.95, and 5.04-6 GHz with the VSWR less than 2 to achieve 2.4/5.2/5.8-GHz WLAN and 2.5/3.5/5.5-GHz WiMAX applications.

Keywords

WiMax; antenna radiation patterns; baluns; bow-tie antennas; dipole antennas; metamaterial antennas; microstrip lines; multifrequency antennas; numerical analysis; planar antennas; wireless LAN; WLAN; WiMAX; complementary capacitively loaded loop; frequency 2.21 GHz to 2.77 GHz; frequency 3.33 GHz to 3.95 GHz; frequency 5.04 GHz to 6 GHz; microstrip line; microstrip-to-coplanar-stripline; numerical simulations; radiation patterns; uniplanar bow-tie antenna; uniplanar compact metamaterial-inspired triple-band dipole antenna; voltage standing-wave ratio; wideband balun; wireless local area network; worldwide interoperability for microwave access; Antenna measurements; Antenna radiation patterns; Dipole antennas; Frequency measurement; Slot antennas; Wireless communication; Complementary capacitively loaded loop (CCLL); metamaterials; triple-band antenna; uniplanar dipole antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2015.2396907

Filename

7021927