Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (CN101796720) Input circuitry for transistor power amplifier and method for designing such circuitry

Office : China
Application Number: 200880105804.0 Application Date: 21.07.2008
Publication Number: 101796720 Publication Date: 04.08.2010
Publication Kind : A
Prior PCT appl.: Application Number:PCTUS2008070622 ; Publication Number:2009035767 Click to see the data
IPC:
H03F 1/56
H03H 7/38
H03H 11/28
H03F 3/19
H03F 3/193
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
CPC:
H03F 1/565
H03F 3/1935
H03F2200/222
H03F2200/228
H03F2200/249
H03F2200/252
H03F2200/451
H03F2200/99
H03H 7/38
Applicants: Raytheon Co.
雷声公司
Inventors: Tremblay John C.
C·S·惠兰
Whelan Colin S.
J·C·特伦布莱
Agents: liu yu wang yang
永新专利商标代理有限公司 72002
永新专利商标代理有限公司 72002
Priority Data: 11851425 07.09.2007 US
Title: (EN) Input circuitry for transistor power amplifier and method for designing such circuitry
(ZH) 晶体管功率放大器的输入电路和设计这种电路的方法
Abstract: front page image
(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.
(ZH)

一种电路具有:输入匹配网络;晶体管(14),其耦合到所述输入匹配网络的输出;并且其中,当向所述输入匹配网络(12)馈送具有相对低的功率电平的输入信号时,所述输入匹配网络(12)具有第一输入阻抗,并且其中,当向所述输入匹配网络(12)馈送具有相对高的功率电平的输入信号时,所述输入匹配网络(12)具有不同于所述第一输入阻抗的输入阻抗。


Also published as:
KR1020100063767EP2203974IN887/KOLNP/2010WO/2009/035767