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1. (WO1998049743) ANTENNA FOR RADIO COMMUNICATIONS APPARATUS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049743 International Application No.: PCT/SE1998/000774
Publication Date: 05.11.1998 International Filing Date: 28.04.1998
Chapter 2 Demand Filed: 12.11.1998
IPC:
H01Q 1/24 (2006.01) ,H01Q 1/36 (2006.01) ,H01Q 1/38 (2006.01) ,H01Q 3/24 (2006.01) ,H01Q 5/00 (2006.01) ,H01Q 9/04 (2006.01) ,H01Q 13/10 (2006.01) ,H01Q 13/16 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
1
Details of, or arrangements associated with, aerials
12
Supports; Mounting means
22
by structural association with other equipment or articles
24
with receiving set
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
1
Details of, or arrangements associated with, aerials
36
Structural form of radiating elements, e.g. cone, spiral, umbrella
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
1
Details of, or arrangements associated with, aerials
36
Structural form of radiating elements, e.g. cone, spiral, umbrella
38
formed by a conductive layer on an insulating support
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
3
Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system
24
varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
5
Arrangements for simultaneous operation of aerials on two or more different wavebands
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
9
Electrically-short aerials having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04
Resonant aerials
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
13
Waveguide horns or mouths; Slot aerials; Leaky-waveguide aerials; Equivalent structures causing radiation along the transmission path of a guided wave
10
Resonant slot aerials
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
13
Waveguide horns or mouths; Slot aerials; Leaky-waveguide aerials; Equivalent structures causing radiation along the transmission path of a guided wave
10
Resonant slot aerials
16
Folded slot aerials
Applicants:
MOTECO AB [SE/SE]; P.O. Box 51 S-570 76 Ruda, SE (AT, BE, BR, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, JP, LU, MC, NL, PT, SE)
CASSEL, Erland [SE/SE]; SE (UsOnly)
Inventors:
CASSEL, Erland; SE
Agent:
WALLENGREN, Yngvar; Patentbyrån Y Wallengren AB P.O. Box 116 S-331 21 Värnamo, SE
Priority Data:
9701646-330.04.1997SE
Title (EN) ANTENNA FOR RADIO COMMUNICATIONS APPARATUS
(FR) ANTENNE POUR DISPOSITIF DE RADIOCOMMUNICATION
Abstract:
(EN) An antenna for a radio communications apparatus operates in the frequency range of 800 MHz - 3 GHz. The antenna has two radiating elements. The first radiating element is a slot (9) in a substantially planar foil or disc-shaped metallic conductor (7). The second radiating element has a resonance frequency which is different from that of the first radiating element. The metallic conductor (7) is placed close to a second conductor (8) in the form of a metallic surface. The second radiating element is formed from an edge portion of the first conductor (7) or a gap between the first (7) and the second (8) conductors. Capacitance devices (24, 25, 30) may be disposed between the edge portion and the second conductor (8).
(FR) Antenne pour dispositif de radiocommunication opérant dans une gamme de fréquences de 800 MHz - 3 GHz. L'antenne présente deux éléments rayonnants. Le premier élément rayonnant est une fente (9) pratiquée dans un conducteur métallique (7) sensiblement planaire en forme de feuille ou de disque. Le second élément rayonnant présente une fréquence de résonance différente de celle du premier élément rayonnant. Le conducteur métallique (7) est placé près d'un second conducteur (8) formant une surface métallique. Le second élément rayonnant est formé d'une partie du bord du premier conducteur (7) ou d'un espace entre le premier (7) et le second (8) conducteur. Des condensateurs (24, 25, 30) peuvent être disposés entre la partie de bord et le second conducteur (8).
front page image
Designated States: BR, DE, JP, SE, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: Swedish (SV)
Also published as:
EP0979536US6337662JP2001522558