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1. (WO2018126010) DIGITAL PREDISTORTION FOR MULTIPLE POWER AMPLIFIERS
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Pub. No.: WO/2018/126010 International Application No.: PCT/US2017/068715
Publication Date: 05.07.2018 International Filing Date: 28.12.2017
IPC:
H03F 1/02 (2006.01) ,H03F 1/32 (2006.01) ,H03F 3/19 (2006.01) ,H03F 3/60 (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
02
Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
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
32
Modifications of amplifiers to reduce non-linear distortion
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
60
Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
Applicants:
CELEDON, Rafael [US/US]; US
ANALOG DEVICES GLOBAL [IE/IE]; 3rd Floor, Par La Ville Place 14, Par La Ville Road Hamilton, BM
Inventors:
CELEDON, Rafael; US
PRATT, Patrick; IE
Agent:
ARORA, Suneel; US
WOO, Justin N., Reg. No. 62,686; US
BLACK, David W., Reg. No. 42,331; US
GOULD, James R., Reg. No. 72,086; US
BEEKMAN, Marvin L., Reg. No. 38,377; US
BIANCHI, Timothy E., Reg. No. 39,610; US
MCCRACKIN, Ann M., Reg. No. 42,858; US
PERDOK, Monique M., Reg. No. 42,989; US
SCHEER, Bradley W., Reg. No. 47,059; US
Priority Data:
62/440,28729.12.2016US
Title (EN) DIGITAL PREDISTORTION FOR MULTIPLE POWER AMPLIFIERS
(FR) PRÉDISTORSION NUMÉRIQUE POUR DES AMPLIFICATEURS DE PUISSANCE MULTIPLES
Abstract:
(EN) Various examples are directed to a power amplifier circuit, comprising a digital predistortion circuit, first and second power amplifiers, and a bias feedback circuit. The digital predistortion circuit may be configured to generate a predistorted input signal based at least in part on an input signal. The first power amplifier may be configured to generate a first amplified signal based at least in part on the predistorted input signal. The second power amplifier may be configured to generate a second amplified signal based at least in part on the predistorted input signal. The bias feedback circuit may be configured to adjust at least one of a bias of the first power amplifier or a bias of the second power amplifier to align a first nonlinear behavior of the first power amplifier with a second nonlinear behavior of the second power amplifier.
(FR) L'invention porte sur divers exemples concernant un circuit amplificateur de puissance, comprenant un circuit de prédistorsion numérique, des premier et second amplificateurs de puissance, et un circuit de rétroaction de polarisation. Le circuit de prédistorsion numérique peut être conçu pour générer un signal d'entrée prédistordu sur la base, au moins en partie, d'un signal d'entrée. Le premier amplificateur de puissance peut être conçu pour générer un premier signal amplifié sur la base, au moins en partie, du signal d'entrée prédistordu. Le second amplificateur de puissance peut être conçu pour générer un second signal amplifié sur la base, au moins en partie, du signal d'entrée prédistordu. Le circuit de rétroaction de polarisation peut être conçu pour ajuster une polarisation du premier amplificateur de puissance et/ou une polarisation du second amplificateur de puissance pour aligner un premier comportement non linéaire du premier amplificateur de puissance avec un second comportement non linéaire du second amplificateur de puissance.
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, SA, 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, ST, 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)