WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2005124994) HIGH-EFFICIENCY AMPLIFIER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/124994    International Application No.:    PCT/JP2004/008615
Publication Date: 29.12.2005 International Filing Date: 18.06.2004
IPC:
H03F 1/07 (2006.01), H03F 1/32 (2006.01), H03F 3/19 (2006.01)
Applicants: MITSUBISHI DENKI KABUSHIKI KAISHA [JP/JP]; 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310 (JP) (For All Designated States Except US).
HORIGUCHI, Kenichi [JP/JP]; (JP) (For US Only).
NAKAYAMA, Masatoshi [JP/JP]; (JP) (For US Only).
TAKAGI, Tadashi [JP/JP]; (JP) (For US Only)
Inventors: HORIGUCHI, Kenichi; (JP).
NAKAYAMA, Masatoshi; (JP).
TAKAGI, Tadashi; (JP)
Agent: TAZAWA, Hiroaki; 7F, Daito Building 7-1, Kasumigaseki 3-chome Chiyoda-ku Tokyo 100-0013 (JP)
Priority Data:
Title (EN) HIGH-EFFICIENCY AMPLIFIER
(FR) AMPLIFICATEUR À HAUT RENDEMENT
(JA) 高効率増幅器
Abstract: front page image
(EN)An analog pre-distortion circuit (5) is connected between an input-side branching circuit (2) and a quarter-wavelength line (6). This compensates for the nonlinear distortion of a peak amplifier (7), with the result that the linearity of the whole amplifier can be improved.
(FR)Un circuit analogique de pré-distorsion (5) est raccordé entre un circuit de branchement côté entrée (2) et une ligne de quart de longueur d’onde (6). Ceci compense la distorsion non linéaire d’un amplificateur de crête (7) avec pour résultat que la linéarité de la totalité de l’amplificateur peut être améliorée.
(JA) 入力側分岐回路2と1/4波長線路6の間にアナログプレディストーション回路5を接続する。これにより、ピーク増幅器7の非線形歪みが補償されるため、増幅器全体の線形性を改善することができる効果を奏する。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, 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, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, 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, HU, IE, IT, LU, MC, 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: Japanese (JA)
Filing Language: Japanese (JA)