N antennas and their applications in portable handsets

Author

Pan, Sheng-Gen ; Becks, Thomas ; Bahrwas, Achim ; Wolff, Ingo

Author_Institution

Inst. fur Mobil und Satellitenfunktech., KampLintfort, Germany

Volume

45

Issue

10

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

1475

Lastpage

1483

Abstract

A new antenna, the N antenna, is proposed for use in mobile communication systems. Detailed investigations are presented through the results obtained using numerical simulations and measurements. The newly proposed antenna has many attractive features such as a wide bandwidth, stable radiation patterns, and a compact structure. The application of the N antenna is exemplified through portable handsets. It is shown that in the presence of an operator, the efficiency of the antenna system of a portable handset increases and the maximum specific absorption rate (SAR) is significantly reduced by using the N antenna

Keywords

antenna radiation patterns; antenna testing; land mobile radio; mobile radio; telephone sets; N antennas; UHF; antenna system efficiency; compact structure; measurements; mobile communication systems; numerical simulations; portable handsets; specific absorption rate; stable radiation patterns; wide bandwidth; Antenna measurements; Antenna radiation patterns; Bandwidth; Conductors; Directive antennas; Mobile antennas; Mobile communication; Resonance; Telephone sets; Transmission line measurements;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.633853

Filename

633853