Title:
A RADIO TELEPHONE WITH HIGH ANTENNA EFFICIENCY
Document Type and Number:
WIPO Patent Application WO1998020577
Kind Code:
A3
Abstract:
A radio telephone, preferably intended for cellular telecommunication, has an apparatus housing (20) and at least one antenna (21), which is mounted to or in connection with the apparatus housing for performing the wireless communication of the radio telephone by transmitting and receiving radiofrequent electromagnetic waves in a given wavelength range. A current-reducing means (30, 31) is mounted to the apparatus housing (20) between the antenna (21) and a side (23) of the radio telephone, which during normal use faces a human user (1). The means has conductive as well as dielectric properties and is arranged to reduce or eliminate electric currents present in and/or on the apparatus housing (20) between the antenna (21) and said side (23) of the radio telephone.
Inventors:
MAARTENSSON DAG JOHAN FREDRIK
HAAKANSSON HANS KENNETH
YING ZHINONG
HAAKANSSON HANS KENNETH
YING ZHINONG
Application Number:
PCT/SE1997/001790
Publication Date:
July 02, 1998
Filing Date:
October 28, 1997
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
International Classes:
H01Q1/12; H01Q1/24; H01Q1/27; H01Q17/00; H04B1/38; H04M1/03; (IPC1-7): H01Q1/24; H04B1/38; H01Q17/00
Foreign References:
| DE4300705A1 | 1993-07-29 | |||
| EP0638955A1 | 1995-02-15 | |||
| JPH07212822A | 1995-08-11 |
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