UWB antenna built into 3G smartphones

Author

Koshiji, Fukuro ; Akiyama, Yoko ; Koshiji, Kohji

Author_Institution

Sch. of Sci. & Eng., Kokushikan Univ., Tokyo, Japan

fYear

2013

fDate

15-18 Sept. 2013

Firstpage

91

Lastpage

96

Abstract

In recent years, ultra-wideband (UWB) technology has received considerable attention as a promising technology for realizing ubiquitous networks. In comparison with conventional narrowband antennas, it is more difficult to construct a broadband antenna in electronic equipment because it is necessary to ensure antenna performance over the entire UWB frequency band. In this study, we investigated an unbalanced dipole antenna with semicircular and trapezoidal elements, known for its excellent, broadband performance, in 3G smartphones. Further, we proposed and investigated an antenna configuration that serves both the 2-GHz band for 3G smartphones and the 3.1-10.6-GHz UWB. As a result, we designed and developed an antenna configuration with a VSWR of less than 2.1 in both the 3G and UWB frequency bands, which was adequate for practical use.

Keywords

3G mobile communication; UHF antennas; dipole antennas; microwave antennas; ubiquitous computing; ultra wideband antennas; ultra wideband communication; 3G smartphones; UWB antenna; UWB frequency band; bandwidth 2 GHz; bandwidth 3.1 GHz to 10.6 GHz; broadband antenna; electronic equipment; semicircular elements; trapezoidal elements; ubiquitous networks; ultra-wideband technology; unbalanced dipole antenna; Antenna radiation patterns; Dipole antennas; Smart phones; Ultra wideband antennas; Broadband antenna; Electromagnetic field analysis; Smartphone; Third-generation; Ultra wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband (ICUWB), 2013 IEEE International Conference on

Conference_Location

Sydney, NSW

ISSN

2162-6588

Type

conf

DOI

10.1109/ICUWB.2013.6663828

Filename

6663828