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1. WO1996042134 - AMPLIFIER

Publication Number WO/1996/042134
Publication Date 27.12.1996
International Application No. PCT/JP1996/001564
International Filing Date 07.06.1996
Chapter 2 Demand Filed 19.12.1996
IPC
H03F 3/191 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
189High-frequency amplifiers, e.g. radio frequency amplifiers
19with semiconductor devices only
191Tuned amplifiers
H03H 7/01 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7Multiple-port networks comprising only passive electrical elements as network components
01Frequency selective two-port networks
H03H 7/38 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7Multiple-port networks comprising only passive electrical elements as network components
38Impedance-matching networks
H03H 11/28 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
11Networks using active elements
02Multiple-port networks
28Impedance matching networks
CPC
H03F 3/191
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
189High frequency amplifiers, e.g. radio frequency amplifiers
19with semiconductor devices only
191Tuned amplifiers
H03H 11/28
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
11Networks using active elements
02Multiple-port networks
28Impedance matching networks
H03H 2001/0085
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
1Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
0021Constructional details
0085Multilayer, e.g. LTCC, HTCC, green sheets
H03H 7/0115
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7Multiple-port networks comprising only passive electrical elements as network components
01Frequency selective two-port networks
0115comprising only inductors and capacitors
H03H 7/1775
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7Multiple-port networks comprising only passive electrical elements as network components
01Frequency selective two-port networks
17Structural details of sub-circuits of frequency selective networks
1741Comprising typical LC combinations, irrespective of presence and location of additional resistors
1775Parallel LC in shunt or branch path
H03H 7/38
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7Multiple-port networks comprising only passive electrical elements as network components
38Impedance-matching networks
Applicants
  • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. [JP]/[JP] (AllExceptUS)
  • HASHIMOTO, Koji [JP]/[JP] (UsOnly)
  • FUJIHASHI, Yoshikuni [JP]/[JP] (UsOnly)
  • TAKAHASHI, Hiroshi [JP]/[JP] (UsOnly)
  • YAHATA, Kazuhiro [JP]/[JP] (UsOnly)
Inventors
  • HASHIMOTO, Koji
  • FUJIHASHI, Yoshikuni
  • TAKAHASHI, Hiroshi
  • YAHATA, Kazuhiro
Agents
  • TAKIMOTO, Tomoyuki
Priority Data
7/14327509.06.1995JP
7/33648725.12.1995JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) AMPLIFIER
(FR) AMPLIFICATEUR
Abstract
(EN)
An amplifier comprising a first amplifier circuit (1) constituted of a first transistor (10), a second amplifier circuit (2) constituted of a second transistor (11) and a first filter (3) having a desired passband and a desired attenuation band and connected between the output section of the circuit (1) and the input section of the circuit (2). The noise contained in the output is reduced.
(FR)
La présente invention concerne un amplificateur comprenant un premier circuit amplificateur (1) constitué par un premier transistor (10), un deuxième circuit amplificateur (2) constitué par un deuxième transistor (11), et un premier filtre (3) ayant une bande passante et une bande coupée désirées, monté entre la sortie du circuit (1) et l'entrée du circuit (2). Le bruit à la sortie est réduit.
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