公开(公告)号：EP2453581A1

公开(公告)日：2012-05-16

申请号：EP11813647.2

申请日：2011-01-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： ISHIZUKA Kenichi ,  KATO Noboru

IPC: H04B1/40 ,  H01P5/08 ,  H01Q1/24

CPC classification number: H01Q1/243 ,  H01P1/20 ,  H01P1/20345 ,  H03H7/09 ,  H03H7/1775 ,  H03H7/38 ,  H03H7/40 ,  H03H7/468

Abstract: A frequency stabilization circuit (25) includes four coiled conductors (L1 to L4), the first coiled conductor (L1) and the second coiled conductor (L2) are connected in series to each other, thereby configuring a first series circuit, the third coiled conductor (L3) and the fourth coiled conductor (L4) are connected in series to each other, thereby configuring a second series circuit, the first series circuit is connected between an antenna port and a power feeding port, and the second series circuit is connected between the antenna port and the ground. The first coiled conductor (L1) and the second coiled conductor (L2) are wound so that a first closed magnetic circuit (a loop indicated by a magnetic flux FP12) is configured, and the third coiled conductor (L3) and the fourth coiled conductor (L4) are wound so that a second closed magnetic circuit (a loop indicated by a magnetic flux FP34) is configured.

Abstract translation: 频率稳定电路（25）包括四个线圈导体（L1至L4），第一线圈导体（L1）和第二线圈导体（L2）彼此串联连接，从而构成第一串联电路，第三线圈 导体（L3）和第四线圈导体（L4）彼此串联连接，从而构成第二串联电路，第一串联电路连接在天线端口和馈电端口之间，第二串联电路连接 在天线端口和地面之间。 缠绕第一线圈导体（L1）和第二线圈导体（L2），使得构成第一闭合磁路（由磁通FP12指示的回路），并且第三线圈导体（L3）和第四线圈导体 （L4）被卷绕，从而构成第二闭合磁路（由磁通量FP34表示的回路）。

公开(公告)号：EP2388858B1

公开(公告)日：2016-09-21

申请号：EP11734686.6

申请日：2011-01-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： KATO Noboru ,  ISHIZUKA Kenichi

IPC: H03H7/38 ,  H03H7/09 ,  H03H7/40 ,  H03H7/46 ,  H01Q5/00 ,  H01Q1/50 ,  H01P5/08 ,  H01P1/203 ,  H04B1/04 ,  H01Q1/24 ,  H01P1/213 ,  H01Q9/30 ,  H01F17/00 ,  H01Q5/335 ,  H01Q5/364

CPC classification number: H01Q1/50 ,  H01F17/0013 ,  H01P1/20345 ,  H01P1/2135 ,  H01Q5/335 ,  H01Q5/364 ,  H01Q9/30

公开(公告)号：EP2388858A1

公开(公告)日：2011-11-23

申请号：EP11734686.6

申请日：2011-01-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： KATO Noboru ,  ISHIZUKA Kenichi

IPC: H01Q1/50 ,  H01P5/08 ,  H01Q1/24

CPC classification number: H01Q1/50 ,  H01F17/0013 ,  H01P1/20345 ,  H01P1/2135 ,  H01Q5/335 ,  H01Q5/364 ,  H01Q9/30

Abstract: An antenna device (106) has an antenna element (11) and an impedance converting circuit (25) connected to the antenna element (11). The impedance converting circuit (25) is connected to a power-supply end of the antenna element (11). The impedance converting circuit (25) is interposed between the antenna element (11) and a power-supply circuit (30). The impedance converting circuit (25) has a first inductance element (L1) connected to the power-supply circuit (30) and a second inductance element (L2) coupled to the first inductance element (L1). A first end and a second end of the first inductance element (L1) are connected to the power-supply circuit (30) and the antenna, respectively. A first end and a second end of the second inductance element (L2) are connected to the antenna element (11) and ground, respectively.

Abstract translation: 天线装置（106）具有连接到天线元件（11）的天线元件（11）和阻抗转换电路（25）。 阻抗变换电路25与天线元件11的电源端连接。 阻抗转换电路（25）插在天线元件（11）和电源电路（30）之间。 阻抗转换电路25具有连接到电源电路30的第一电感元件L1和耦合到第一电感元件L1的第二电感元件L2。 第一电感元件（L1）的第一端和第二端分别连接到电源电路（30）和天线。 第二电感元件（L2）的第一端和第二端分别连接到天线元件（11）并接地。