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1. WO2020192979 - PHOTOCONDUCTIVE MULTICHANNEL TERAHERTZ RECEIVING ANTENNA, RECEIVER, TERAHERTZ SYSTEM AND TERAHERTZ METHOD

Publication Number WO/2020/192979
Publication Date 01.10.2020
International Application No. PCT/EP2020/051315
International Filing Date 20.01.2020
IPC
H01Q 1/38 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
36Structural form of radiating elements, e.g. cone, spiral, umbrella
38formed by a conductive layer on an insulating support
H01Q 9/28 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
16with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
28Conical, cylindrical, cage, strip, gauze or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
G01N 21/3581 2014.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3581using far infra-red light; using Terahertz radiation
CPC
G01N 21/3581
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3581using far infra-red light; using Terahertz radiation
H01Q 1/38
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
36Structural form of radiating elements, e.g. cone, spiral, umbrella; ; Particular materials used therewith
38formed by a conductive layer on an insulating support
H01Q 9/285
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
16with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
28Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
285Planar dipole
Applicants
  • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE]/[DE]
Inventors
  • NELLEN, Simon
  • GLOBISCH, Björn
Agents
  • PFENNING, MEINIG & PARTNER MBB
Priority Data
19165658.627.03.2019EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) PHOTOLEITENDE MEHRKANAL-TERAHERTZ-EMPFANGSANTENNE, EMPFÄNGER, TERAHERTZSYSTEM UND TERAHERTZVERFAHREN
(EN) PHOTOCONDUCTIVE MULTICHANNEL TERAHERTZ RECEIVING ANTENNA, RECEIVER, TERAHERTZ SYSTEM AND TERAHERTZ METHOD
(FR) ANTENNE DE RÉCEPTION TÉRAHERTZ MULTICANAUX PHOTOCONDUCTRICE, RÉCEPTEUR, SYSTÈME TÉRAHERTZ ET PROCÉDÉ TÉRAHERTZ
Abstract
(DE)
Die Erfindung betrifft eine Empfangsantenne (1) für Terahertzstrahlung (30), umfassend einen Antennenleiter (2) und einen mit dem Antennenleiter (2) verschalteten und durch Licht (9) aktivierbaren ersten Photoleiter (3), der in einem aktivierten Zustand einen durch den Antennenleiter (2) und den ersten Photoleiter (3) fließenden Antennenstrom (28) ermöglicht, dadurch gekennzeichnet, dass die Empfangsantenne (1) mindestens einen ebenfalls mit dem Antennenleiter (2) verschalteten und durch Licht (9) aktivierbaren zweiten Photoleiter (4) aufweist, der mit dem ersten Photoleiter (3) parallel geschaltet ist und in einem aktivierten Zustand einen durch den Antennenleiter (2) und den zweiten Photoleiter (4) fließenden Antennenstrom (28) ermöglicht, wobei zwischen jeden der Photoleiter (3, 4) und den Antennenleiter (2) jeweils mindestens ein Hochpassfilter (8) geschaltet ist. Die Erfindung betrifft weiterhin einen Empfänger für Terahertzstrahlung (30), ein Terahertzsystem und ein Verfahren zum Erzeugen und Detektieren von Terahertzstrahlung (30) unter Verwendung eines entsprechenden Terahertzsystems.
(EN)
The invention relates to a receiving antenna (1) for terahertz radiation (30), comprising an antenna conductor (2) and a first photoconductor (3), which is interconnected with the antenna conductor (2), can be activated by light (9) and, in an activated state, enables an antenna current (28) flowing through the antenna conductor (2) and the first photoconductor (3), characterized in that the receiving antenna (1) has at least one second photoconductor (4), which likewise is interconnected with the antenna conductor (2) and can be activated by light (9), is connected in parallel with the first photoconductor (3) and, in an activated state, enables an antenna current (28) flowing through the antenna conductor (2) and the second photoconductor (4), at least one high-pass filter (8) being connected between each of the photoconductors (3, 4) and the antenna conductor (2). The invention further relates to a receiver for terahertz radiation (30), to a terahertz system and to a method for generating and detecting terahertz radiation (30) using a corresponding terahertz system.
(FR)
L'invention concerne une antenne de réception (1) pour un rayonnement térahertzien (30), comprenant un conducteur d'antenne (2) et un premier photoconducteur (3) qui est interconnecté avec le conducteur d'antenne (2) et peut être activé par de la lumière (9) et qui, dans un état activé, permet à un courant d'antenne (28) de passer à travers le conducteur d'antenne (2) et le premier photoconducteur (3). L'invention est caractérisée en ce que l'antenne de réception (1) possède au moins un deuxième photoconducteur (4), lui aussi interconnecté avec le conducteur d'antenne (2) et qui peut être activé par de la lumière (9), lequel est branché en parallèle avec le premier photoconducteur (3) et, dans un état activé, permet à un courant d'antenne (28) de passer à travers le conducteur d'antenne (2) et le deuxième photoconducteur (4). Au moins un filtre passe-haut (8) est respectivement branché entre chacun des photoconducteurs (3, 4) et le conducteur d'antenne (2). L'invention concerne en outre un récepteur pour un rayonnement térahertzien (30), un système Térahertz et un procédé pour générer et détecter un rayonnement térahertzien (30) en utilisant un système Térahertz correspondant.
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