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1. (WO2008099724) LINC TRANSMISSION CIRCUIT AND COMMUNICATION DEVICE USING THE SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2008/099724    International Application No.:    PCT/JP2008/051904
Publication Date: 21.08.2008 International Filing Date: 30.01.2008
IPC:
H04L 27/36 (2006.01), H03F 1/02 (2006.01)
Applicants: PANASONIC CORPORATION [JP/JP]; 1006, Oaza Kadoma, Kadoma-shi, Osaka, 5718501 (JP) (For All Designated States Except US).
MATSUURA, Toru; (For US Only)
Inventors: MATSUURA, Toru;
Agent: OGASAWARA, Shiro; Daido-Seimei Esaka Bldg., 13th Floor, 1-23-101, Esakacho, Suita-shi, Osaka, 5640063 (JP)
Priority Data:
2007-033775 14.02.2007 JP
Title (EN) LINC TRANSMISSION CIRCUIT AND COMMUNICATION DEVICE USING THE SAME
(FR) CIRCUIT DE TRANSMISSION LINC ET DISPOSITIF DE COMMUNICATION UTILISANT CE CIRCUIT
Abstract: front page image
(EN)Provided is a transmission circuit which is: capable of outputting a highly linear transmission signal regardless of a bandwidth; small in size; and capable of operating with high efficiency. A signal separation section (11) separates an amplitude signal into a high frequency amplitude signal and a low frequency amplitude signal. An amplitude amplifier (12) supplies amplitude modulation sections (16, 17) with a voltage controlled in accordance with the low frequency amplitude signal. A LINC calculation section (13) outputs, based on a calculation using the high frequency amplitude signal, a calculation phase signal. Angle modulation sources (14, 15) respectively angle-modulate signals which result from adding/subtracting the calculation phase signal to/from a phase signal, and respectively output a first angle-modulated signal and a second angle-modulated signal. The amplitude modulation sections (16, 17) respectively amplitude-modulate the first angle-modulated signal and the second angle-modulated signal, and respectively output a first modulation signal and a second modulation signal. A combining section (18) combines the first modulation signal and the second modulation signal, thereby generating the transmission signal.
(FR)Circuit de transmission de petite taille capable: de générer un signal de transmission fortement linéaire indépendamment de la largeur de bande; et de fonctionner avec une grande efficacité. Une unité de séparation de signal (11) sépare un signal d'amplitude en un signal d'amplitude haute fréquence et un signal d'amplitude basse fréquence. Un amplificateur de fréquence (12) alimente des unités de modulation d'amplitude (16, 17) en tension commandée en fonction du signal d'amplitude basse fréquence. Une unité de calcul LINC ('Linear Amplification using Nonlinear Components' = amplification linéaire par composants non-linéaires) génère, sur la base d'un calcul faisant intervenir le signal d'amplitude haute fréquence, un signal de phase de calcul. Des sources de modulation angulaire (14, 15) modulent l'angle des signaux, ce qui conduit à ajouter ou à retrancher le signal de phase de calcul à un/d'un signal de phase, et génèrent respectivement un premier signal et un second signal à modulation angulaire. Les unités de modulation d'amplitude (16, 17) modulent en amplitude le premier et le second signal de modulation, respectivement. Une unité de combinaison (18) combine le premier et le second signal de modulation, ce qui génère le signal de transmission.
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, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (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)