Improved internal antenna for hand-held terminals

Author

Nowak, Pawel ; Bonek, Ernst

Volume

30

Issue

22

fYear

1994

fDate

10/27/1994 12:00:00 AM

Firstpage

1816

Lastpage

1818

Abstract

An analysis is made of the performance of a radiation-coupled dual-L antenna (RCDLA). In the simulation the antenna is mounted on the back side of the hand-held terminal, making use of the metallic housing as a shielding structure. The simulations show that this structure has a similar performance to that of the recently proposed full short circuit planar inverted-F antenna (FS-PIFA) in terms of shielding and radiation characteristics. In terms of bandwidth, size, and matching capabilities the RCDLA outperforms the FS-PIFA. Placement of the antenna on the back side of the housing instead of the top of the terminal results in a radiation pattern that points away from the user´s head regardless of the antenna type

Keywords

antenna radiation patterns; antennas; biological effects of microwaves; cordless telephone systems; safety; shielding; antenna type; bandwidth; full short circuit planar inverted-F antenna; hand held telephones; hand-held terminal; hand-held terminals; internal antenna; matching capabilities; metallic housing; radiation characteristics; radiation pattern; radiation-coupled dual-L antenna; shielding structure; simulation; simulations; size; user´s head;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19941258

Filename

329957