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3. (WO2009126999) RADIO FREQUENCY TRANSPONDER
PCT Biblio. Data
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Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/126999    International Application No.:    PCT/AU2009/000463
Publication Date: 22.10.2009 International Filing Date: 16.04.2009
Chapter 2 Demand Filed:    24.12.2009    
IPC:
H01P 7/10 (2006.01), G01R 23/07 (2006.01), G01R 27/04 (2006.01), G06K 19/06 (2006.01), H01P 7/08 (2006.01), H01Q 1/38 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
P
WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
7
Resonators of the waveguide type
10
Dielectric resonators
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
23
Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
02
Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
06
by converting frequency into an amplitude of current or voltage
07
using response of circuits tuned on resonance, e.g. grid-drip meter
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27
Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02
Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
04
in circuits having distributed constants
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19
Record carriers for use with machines and with at least a part designed to carry digital markings
06
characterised by the kind of the digital marking, e.g. shape, nature, code
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
P
WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
7
Resonators of the waveguide type
08
Strip line resonators
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
Applicants: MONASH UNIVERSITY [AU/AU]; Wellington Road Clayton , Victoria 3168 (AU) (For All Designated States Except US).
PRERADOVIC, Stevan [AU/AU]; (AU) (For US Only).
KARMAKAR, Nemai Chandra [AU/AU]; (AU) (For US Only).
BALBIN, Isaac [AU/AU]; (AU) (For US Only).
ROY, Sushim, Mukul [IN/AU]; (AU) (For US Only).
SWIEGERS, Gerhard, Frederick [AU/AU]; (AU) (For US Only)
Inventors: PRERADOVIC, Stevan; (AU).
KARMAKAR, Nemai Chandra; (AU).
BALBIN, Isaac; (AU).
ROY, Sushim, Mukul; (AU).
SWIEGERS, Gerhard, Frederick; (AU)
Agent: WATERMARK PATENT AND TRADE MARK ATTORNEYS; Level 2 302 Burwood Road Hawthorn , Victoria 3122 (AU)
Priority Data:
2008901889 16.04.2008 AU
Title (EN) RADIO FREQUENCY TRANSPONDER
(FR) TRANSPONDEUR À RADIOFRÉQUENCES
Abstract: front page image
(EN)Information is encoded in a resonator/antenna structure, which may be interrogated in order to retrieve the information via radio frequency (RF) excitation. The resonator/antenna structure comprises a multiresonator including a plurality of substructures, and exhibits a plurality of resonances in the RF domain. Characteristic frequencies of the resonances depend upon the substructures, which may be modified in accordance with information to be encoded within the resonator/antenna structure. The resonator/antenna may be formed as a conductive structure disposed upon a dielectric substrate, and may be useful for encoding information within chipless RFID tags, security documents, negotiable instruments, and so forth. A variety of suitable multiresonator structures are disclosed, including multi-stop-band filters comprising cascaded spiral resonators, a "wheel and spoke" structure, an interleaved resonant circuit, and a fractal resonator structure.
(FR)La présente invention concerne un transpondeur de radiofréquences. Les informations sont codées dans une structure de résonateur/antenne, qui peut être interrogée afin de récupérer les informations par excitation radiofréquence (RF). La structure de résonateur/antenne comprend un multirésonateur qui comprend une pluralité de sous-structures, et présente une pluralité de résonances dans le champ RF. Des fréquences caractéristiques des résonances dépendent des sous-structures, qui peuvent être modifiées conformément aux informations à coder dans la structure de résonateur/antenne. La structure de résonateur/antenne peut se présenter sous la forme d'une structure conductrice disposée sur un substrat diélectrique, et peut être utile pour coder des informations à l’intérieur d’étiquettes RFID sans puce, de documents de sécurité, d’instruments négociables, et ainsi de suite. Une variété de structures de multirésonateur appropriées est décrite, y compris des multifiltres éliminateurs de bandes qui comprennent des résonateurs hélicoïdaux en cascade, une structure « roue et rayons », un circuit résonant entrelacé, et une structure de résonateur fractale.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Org. (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)