公开(公告)号：US06885259B2

公开(公告)日：2005-04-26

申请号：US10623594

申请日：2003-07-22

申请人： Byoung Hwa Lee ,  Nam Chul Kim ,  James Mike Peters ,  Myung Pyo Jun ,  Jeong Ho Yoon ,  Ian Lee ,  Dong Seok Park ,  Sang Soo Park

发明人： Byoung Hwa Lee ,  Nam Chul Kim ,  James Mike Peters ,  Myung Pyo Jun ,  Jeong Ho Yoon ,  Ian Lee ,  Dong Seok Park ,  Sang Soo Park

IPC分类号： H04B1/44 ,  H01P1/203 ,  H01P1/213 ,  H01P5/02

CPC分类号： H01P5/02 ,  H01P1/213

摘要： Disclosed is a matching circuit of a laminated duplexer connected to an antenna terminal while being connected between transmitting and receiving filters to match the transmitting and receiving filters with the antenna terminal, the matching circuit being configured to reduce the physical length of each conductor pattern thereof, thereby being capable of achieving an improved miniaturization thereof. The matching circuit includes a transmitting matching unit constituted by a conductor pattern electrically connected to an antenna electrode connected to the antenna terminal while being electrically connected to the transmitting filter, a first ground electrode vertically spaced apart from the conductor pattern, a receiving matching unit constituted by a conductor pattern electrically connected to the antenna electrode and the receiving filter, and a second ground electrode vertically spaced apart from the conductor pattern of the receiving matching unit. A laminated duplexer provided with the matching circuit is also disclosed. In accordance with the configuration of the matching circuit, it is possible to achieve a reduction in insertion loss, an improvement in the reflection characteristics of an associated antenna, and, thus, an improvement in bandpass characteristics.

摘要翻译： 公开了一种连接到天线端子的层叠双工器的匹配电路，同时连接在发射和接收滤波器之间以将发射和接收滤波器与天线端子匹配，匹配电路被配置为减小其每个导体图案的物理长度， 从而能够实现其小型化。 匹配电路包括发射匹配单元，其由与连接到天线端子的天线电极电连接的导体图案构成，同时电连接到发射滤波器，与导体图案垂直间隔开的第一接地电极，构成的接收匹配单元 通过与天线电极和接收滤波器电连接的导体图案和与接收匹配单元的导体图案垂直间隔开的第二接地电极。 还公开了配备有匹配电路的层压双工器。 根据匹配电路的结构，可以实现插入损耗的降低，相关天线的反射特性的提高，从而提高带通特性。