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1. (WO2013122709) ELECTRONIC DEVICE ANTENNAS WITH FILTER AND TUNING CIRCUITRY
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/122709 International Application No.: PCT/US2013/021551
Publication Date: 22.08.2013 International Filing Date: 15.01.2013
IPC:
H01Q 9/42 (2006.01) ,H01Q 5/00 (2006.01)
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
30
with feed to end of elongated active element, e.g. unipole
42
with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
5
Arrangements for simultaneous operation of aerials on two or more different wavebands
Applicants: APPLE INC.[US/US]; 1 Infinite Loop M/S 36-2PAT Cupertino, CA 95014, US
Inventors: MCMILIN, Emily, B.; US
LI, Qingxiang; US
SCHLUB, Robert, W.; US
Agent: LEVENSON, Louis, R.; Treyz Law Group 870 Market Street Suite 984 San Francisco, CA 94102, US
Priority Data:
13/399,80017.02.2012US
Title (EN) ELECTRONIC DEVICE ANTENNAS WITH FILTER AND TUNING CIRCUITRY
(FR) ANTENNES DE DISPOSITIF ÉLECTRONIQUE À FILTRE ET CIRCUITERIE D'ACCORD
Abstract:
(EN) An electronic device may have an antenna that includes conductive antenna structures forming an antenna resonating element and an antenna ground. A band-stop filter may be coupled between first and second portions of the conductive structures. The band-stop filter may be formed from multiple series-connected resonant circuits. The band-stop filter and an impedance matching circuit may be coupled in series between the antenna resonating element and the antenna ground. The band-stop filter may be characterized by a stop band. The antenna may be configured to operate in a first communications band that is outside of the stop band and a second communications band that is covered by the stop band. The impedance matching circuit may be an adjustable circuit that is used to tune the antenna. The adjustable circuit may be a switch-based adjustable capacitor that is adjusted to tune the response of the antenna in the first communications band.
(FR) Selon l'invention, un dispositif électronique peut comprendre une antenne qui comprend des structures d'antenne conductrices formant un élément résonant d'antenne et une masse d'antenne. Un filtre coupe-bande peut être couplé entre des première et seconde parties des structures conductrices. Le filtre coupe-bande peut être formé de multiples circuits résonants connectés en série. Le filtre coupe-bande et un circuit d'adaptation d'impédance peuvent être couplés en série entre l'élément résonant d'antenne et la masse d'antenne. Le filtre coupe-bande peut être caractérisé par une bande de coupure. L'antenne peut être configurée pour fonctionner dans une première bande de communication qui est en dehors de la bande de coupure et une seconde bande de communication qui est couverte par la bande de coupure. Le circuit d'adaptation d'impédance peut être un circuit ajustable qui est utilisé pour accorder l'antenne. Le circuit ajustable peut être un condensateur ajustable à base de commutateur qui est ajusté pour accorder la réponse de l'antenne dans la première bande de communication.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)