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1. (WO2009035767) INPUT CIRCUITRY FOR TRANSISTOR POWER AMPLIFIER AND METHOD FOR DESIGNING SUCH CIRCUITRY
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2009/035767 International Application No.: PCT/US2008/070622
Publication Date: 19.03.2009 International Filing Date: 21.07.2008
IPC:
H03F 1/56 (2006.01) ,H03H 7/38 (2006.01) ,H03H 11/28 (2006.01) ,H03F 3/19 (2006.01) ,H03F 3/193 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
1
Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
56
Modifications of input or output impedances, not otherwise provided for
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7
Multiple-port networks comprising only passive electrical elements as network components
38
Impedance-matching networks
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
11
Networks using active elements
02
Multiple-port networks
28
Impedance matching networks
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
189
High-frequency amplifiers, e.g. radio frequency amplifiers
19
with semiconductor devices only
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
189
High-frequency amplifiers, e.g. radio frequency amplifiers
19
with semiconductor devices only
193
with field-effect devices
Applicants:
RAYTHEON COMPANY [US/US]; 870 Winter Street Waltham, MA 02451-1449, US (AllExceptUS)
WHELAN, Colin, S. [US/US]; US (UsOnly)
TREMBLAY, John, C. [US/US]; US (UsOnly)
Inventors:
WHELAN, Colin, S.; US
TREMBLAY, John, C.; US
Agent:
MOFFORD, Donald, F.; Daly, Crowley, Mofford & Durkee, LLP Suite 301A 354A Turnpike St. Canton, Massachusetts 02021, US
Priority Data:
11/851,42507.09.2007US
Title (EN) INPUT CIRCUITRY FOR TRANSISTOR POWER AMPLIFIER AND METHOD FOR DESIGNING SUCH CIRCUITRY
(FR) CIRCUIT D'ENTRÉE POUR UN AMPLIFICATEUR ET PROCÉDÉ DE CONCEPTION ASSOCIÉ
Abstract:
(EN) A circuit having: an input matching network, a transistor (14) coupled to an output of the input matching network; and wherein the input matching network (12) has a first input impedance when such input matching network (12) is fed with an input signal having a relatively low power level and wherein the input matching network (12) has an input impedance different from the first input impedance when such input matching network (12) is fed with an input signal having a relatively high power level.
(FR) L'invention concerne un circuit comprenant: un réseau d'adaptation d'entrée, un transistor (14) couplé à une sortie du réseau d'adaptation d'entrée; et le réseau d'adaptation d'entrée (12) présentant une première impédance d'entrée, lorsque celui-ci est alimenté par un signal d'entrée présentant un faible niveau de puissance. Le réseau d'adaptation d'entrée (12) présente une impédance d'entrée différente de la première impédance d'entrée, lorsqu'il est alimenté par un signal présentant un niveau de puissance relativement élevé.
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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 Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, 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)
Also published as:
KR1020100063767EP2203974CN101796720IN887/KOLNP/2010