| 54 |
Title |
TI |
[DE] Varaktor mit erweitertem Durchstimmungsbereich
[EN] Varactor with extended tuning range
[FR] Varactor ayant une gamme d'accordablité étendue |
| 71/73 |
Applicant/owner |
PA |
LUCENT TECHNOLOGIES INC, US
|
| 72 |
Inventor |
IN |
ECKL WOLFGANG, DE
;
FISCHER GEORG, DE
;
KAMINSKI GERHARD, DE
|
| 22/96 |
Application date |
AD |
Jul 16, 2002 |
| 21 |
Application number |
AN |
02254974 |
|
Country of application |
AC |
EP |
|
Publication date |
PUB |
Jan 21, 2004 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
|
| 51 |
IPC main class |
ICM |
H03B 5/12
|
| 51 |
IPC secondary class |
ICS |
H03J 3/18
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
H03B 2201/0208
H03B 2201/0291
H03B 5/1203
H03B 5/1243
H03F 2200/111
H03F 3/195
H03J 2200/10
H03J 3/185
|
|
MCD main class |
MCM |
|
|
MCD secondary class |
MCS |
H03B 5/12
(2006.01)
H03F 3/195
(2006.01)
H03J 3/18
(2006.01)
|
|
MCD additional class |
MCA |
H03B 1/00
(2006.01)
|
| 57 |
Abstract |
AB |
[EN] The invention relates to a device for high-frequency and/or radio-frequency tuning. <??>An object of the invention is to provide a new and improved approach for enabling an increased high-frequency and/or radio-frequency tuning range by a reduced complexity and board space even with regard to multiband and/or multistandard purposes, in particular suitable within the radio design for mobile communication systems and/or networks, preferably by simultaneously reducing the undesirable parasitic influences. The invention proposes a device for high-frequency and/or radio-frequency tuning comprising within one IC-package a first variable capacitor (C1) and at least one second capacitor (C2), each of the at least one second capacitor (C2) being fixed or variable respectively, at least one signal path connected to the first variable capacitor (C1) and providing at least one input and one output port (rf-port1, rf-port2) and at least one controllable switching means (SC2) for individually connecting and disconnecting at least one of the at least one second capacitor (C2) into the signal path or from the signal path, in particular in parallel to the first variable capacitor (C1). |
| 56 |
Cited documents identified in the search |
CT |
DE000010053216A1
DE000019914698A1
US000005880921A
US000006232847B1
US000006310419B1
WO002001031774A1
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
H03B 5/12
H03J 3/18
H04B 1/18
|
