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1. (WO2008014029) RE-CONFIGURABLE IMPEDANCE MATCHING AND HARMONIC FILTER SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2008/014029 International Application No.: PCT/US2007/067257
Publication Date: 31.01.2008 International Filing Date: 24.04.2007
IPC:
H04B 1/04 (2006.01) ,H01Q 11/12 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
02
Transmitters
04
Circuits
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
11
Electrically-long aerials having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
12
Resonant aerials
Applicants: LIU, Lianjun[CN/US]; US (UsOnly)
MILLER, Melvy F.[US/US]; US (UsOnly)
FREESCALE SEMICONDUCTOR INC.[US/US]; 6501 William Cannon Drive West Austin, Texas 78735, US (AllExceptUS)
Inventors: LIU, Lianjun; US
MILLER, Melvy F.; US
Agent: KING, Robert L. ; 7700 W. Parmer Lane MD: TX32/PL02 Austin, Texas 78729, US
Priority Data:
11/494,82128.07.2006US
Title (EN) RE-CONFIGURABLE IMPEDANCE MATCHING AND HARMONIC FILTER SYSTEM
(FR) SYSTÈME RECONFIGURABLE DE CIRCUIT D'ADAPTATION D'IMPÉDANCE ET DE FILTRE D'HARMONIQUES
Abstract:
(EN) Methods and apparatus are provided to enable a transceiver (200) or transmitter including a single PA line-up (210) to transmit signals having frequencies in two or more different frequency bands, and/or having two or more different modulation types, and/or having two or more different RF power levels. The single PA line-up includes at least one variable matching circuit (216) and a variable harmonic filter (240) to tune match and tune filter communication signals prior to transmission. The variable matching circuit and the variable harmonic filter each include at least one variable capacitive element (2160 and 2400) that switches ON/OFF depending on whether a low frequency signal or a high frequency signal is being transmitted. Each variable capacitive element includes separate direct current and radio frequency terminals to enable the single PA line-up to change signal modulation and/or RF power levels in addition to frequencies.
(FR) La présente invention concerne des procédés et un appareil qui permettent à un émetteur-récepteur (200) ou à un émetteur comprenant une seule série (210) d'amplificateurs de puissance d'émettre des signaux ayant des fréquences situées dans au moins deux bandes de fréquence différentes et/ou ayant au moins deux types de modulation différents et/ou ayant au moins deux niveaux de puissance RF différents. La série unique d'amplificateurs de puissance comprend au moins un circuit d'adaptation variable (216) et un filtre d'harmoniques variable (240) pour accorder et filtrer les signaux de communication avant la transmission. Le circuit d'adaptation variable et le filtre d'harmoniques variables comprennent chacun au moins un élément capacitif variable (2160 et 2400) qui bascule sur MARCHE/ARRÊT en fonction du type de fréquence, basse ou haute, du signal transmis. Chaque élément capacitif variable comprend un courant continu séparé et des bornes radiofréquence pour permettre à la série unique d'amplificateurs de puissance de changer la modulation du signal et/ou les niveaux de puissance RF en plus des fréquences.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, 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, 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, SV, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (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, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, PL, PT, RO, SE, SI, SK, 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)