首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Tunable radio frequency filter
摘要
The present invention provides a filter unit cell. The filter unit cell includes a variable capacitor coupled in series between first and second nodes and an inductor coupled in series between the second node and a third node.
申请公布号
US7593696(B2)
申请公布日期
2009.09.22
申请号
US20050055137
申请日期
2005.02.10
申请人
ALCATEL-LUCENT USA INC.
发明人
FISCHER GEORG
分类号
H04B1/40
主分类号
H04B1/40
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PRODUCTION OF DIELECTRIC THIN FILM
RADIATION TYPE HEAT DECOMPOSITION FURNACE
AUTOMATIC SWITCHING DEVICE
ZEROOPHASE CURRENT TRANSFORMER
MAGNETIC RECORDDREPRODUCTION UNIT
METHOD OF AUTOMATICALLY CHARGING CITRUS FRUIT
ELECTROPHOTOGRAPHIC LIGHT SENSITIVE MATERIAL
SOLID STATE ELECTROLYTIC CAPACITOR
OPTICAL TRANSMISSION MODE CONVERTOR
OPTICAL FIBER
MANUFACTURING PROCESS OF MAGNETIC HEAD
METHOD OF PRODUCING ZINC ALKALINE BATTERY SEPARATOR
METHOD OF ACCELERATING COOLING OF POLYMER PARTICLES
COAL LIQUEFACTION METHOD UISNG PETROLEUM HEAVY OIL
METHOD OF ANALYZING HYDROCARBON CONVERSION CATALYST CONTAINING ZEOLITE
TREATING DEVICE FOR ELECTROPHOTOGRAPHY
SWITCH
PORTABLE DEVICE FOR MEASURING AIR SPEED
ELECTROPHOTOGRAPHIC LIHGT SENSITIVE MATERIAL
ELECTROMAGNETIC SWITCH CONTROL UNIT