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1. WO1999033142 - ANTENNA SHIELDING FOR RADIO TELEPHONES WITH RETRACTABLE ANTENNA

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Publication Number WO/1999/033142
Publication Date 01.07.1999
International Application No. PCT/US1998/026995
International Filing Date 18.12.1998
Chapter 2 Demand Filed 12.07.1999
IPC
H01Q 1/24 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
12Supports; Mounting means
22by structural association with other equipment or articles
24with receiving set
H01Q 1/52 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
CPC
H01Q 1/24
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
12Supports; Mounting means
22by structural association with other equipment or articles
24with receiving set
H01Q 1/244
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
12Supports; Mounting means
22by structural association with other equipment or articles
24with receiving set
241used in mobile communications, e.g. GSM
242specially adapted for hand-held use
243with built-in antennas
244extendable from a housing along a given path
H01Q 1/526
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
526Electromagnetic shields
Applicants
  • ERICSSON, INC. [US]/[US]
Inventors
  • HOLSHOUSER, Howard, E.
  • SADLER, Robert, A.
Agents
  • RICHARDSON, Julie, H.
Priority Data
08/994,41919.12.1997US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ANTENNA SHIELDING FOR RADIO TELEPHONES WITH RETRACTABLE ANTENNA
(FR) BLINDAGE POUR RADIOTELEPHONES MUNIS D'UNE ANTENNE ESCAMOTABLE
front page image
Abstract
(EN) Shields for radiotelephones with a retractable antenna include a conductive tubular antenna guide operably associated with an electronic ground, and preferably configured to form an inductor or capacitor in a matching circuit operable when the antenna is in the retracted position. Associated methods include directing RF radiation produced by the antenna positioned internal to the radiotelephone along a longitudinal exit path out of the radiotelephone.
(FR) L'invention concerne des blindages pour radiotéléphones munis d'une antenne escamotable, qui comprennent un guide d'antenne tubulaire conducteur associé de manière fonctionnelle à une masse électronique, de préférence configuré pour former un inducteur ou condensateur dans un circuit d'adaptation pouvant fonctionner lorsque l'antenne est escamotée. Des procédés associés consistent à guider un rayonnement RF produit par l'antenne en position escamotée, le long d'un trajet longitudinal de déploiement de ladite antenne hors du radiotéléphone.
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