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1. WO2001045203 - RADIO TRANSMITTER/RADIO RECEIVER UNIT COMPRISING A TUNEABLE ANTENNA

Publication Number WO/2001/045203
Publication Date 21.06.2001
International Application No. PCT/DE2000/004225
International Filing Date 28.11.2000
Chapter 2 Demand Filed 23.04.2001
IPC
H01Q 3/44 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
44varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
H01Q 5/00 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
5Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
H01Q 9/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
H01Q 9/30 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
30with feed to end of elongated active element, e.g. unipole
H01Q 9/32 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
30with feed to end of elongated active element, e.g. unipole
32Vertical arrangement of element
CPC
H01Q 3/44
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
44varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
H01Q 9/0442
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
0442with particular tuning means
H01Q 9/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
06Details
14Length of element or elements adjustable
H01Q 9/30
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
30with feed to end of elongated active element, e.g. unipole
H01Q 9/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
30with feed to end of elongated active element, e.g. unipole
32Vertical arrangement of element
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE] (AllExceptUS)
  • LUNGWITZ, Matthias [DE]/[DE] (UsOnly)
Inventors
  • LUNGWITZ, Matthias
Common Representative
  • SIEMENS AKTIENGESELLSCHAFT
Priority Data
199 59 983.113.12.1999DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) FUNK-SENDE-/FUNK-EMPFANGSEINRICHTUNG MIT ABSTIMMBARER ANTENNE
(EN) RADIO TRANSMITTER/RADIO RECEIVER UNIT COMPRISING A TUNEABLE ANTENNA
(FR) UNITE D'EMISSION/DE RECEPTION RADIO A ANTENNE ACCORDABLE
Abstract
(DE)
Eine Funk-Sende-/Funk-Empfangseinrichtung, die eine Sende-/Empfangsfähigkeit in unterschiedlichen Frequenzbereichen, bei nahezu gleichbleibendem stabilem Antennengewinn, realisiert, wird ein dielektrischer Körper, dessen Dielektrizität veränderbar ist, in den Nahbereich eines Antennenkörpers angeordnet, wobei eine Regeleinrichtung der Antenne eine Gleichspannung zuführt, die eine Änderung der Dielektrizität des dielektrischen Körpers hervorruft. Die Regeleinrichtung verändert den Gleichspannungswert, bis die Dielektrizität bei mindestens einer physikalischen die Empfangs- und Sendequalität darstellenden Eingangsgröße ein Optimum gewährleistet.
(EN)
The invention relates to a radio transmitter/radio receiver unit which is capable of transmitting and receiving in different frequency ranges with a stable antenna gain that remains practically constant. According to the invention, a dielectric body, whose dielectricity can be modified is placed in the vicinity of an antenna body. A control unit supplies a d.c. voltage to the antenna which causes the dielectricity of the dielectric body to be modified. The control unit modifies the d.c. voltage value until the dielectricity guarantees an optimum value for at least one physical input variable, which represents the reception and transmission quality.
(FR)
L'invention concerne une unité d'émission/de réception radio qui peut émettre/recevoir dans différentes gammes de fréquences, avec un gain d'antenne pratiquement constant. Selon l'invention, un corps diélectrique, à constante diélectrique variable, est placé à proximité d'un corps d'antenne. Une unité de régulation achemine à l'antenne une tension continue qui provoque une variation de la constante diélectrique du corps diélectrique. Cette unité de régulation fait varier la valeur de tension continue jusqu'à ce que la constante diélectrique assure une valeur optimale pour au moins une grandeur d'entrée physique représentant la qualité d'émission et de réception.
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