公开(公告)号：US06714098B2

公开(公告)日：2004-03-30

申请号：US09914263

申请日：2001-10-19

申请人： Kazushi Nishida ,  Katsuya Fujii ,  Ichiro Kameyama ,  Toru Sakuragawa ,  Hiroshi Fujinaka

发明人： Kazushi Nishida ,  Katsuya Fujii ,  Ichiro Kameyama ,  Toru Sakuragawa ,  Hiroshi Fujinaka

IPC分类号： H03H972

CPC分类号： H04B1/52 ,  H03H9/0576 ,  H03H9/72 ,  H03H9/725

摘要： An antenna duplexer capable of optimally decreasing the insertion loss and the voltage standing wave ratio (VSWR) at a center frequency and its vicinity in the pass band in transmitter-band of the device. The output port of transmitter surface-acoustic-wave (SAW) filter (11) is electrically connected with phase shift circuit (13), to which receiver SAW filter (12) is also electrically connected. The transmitter and receiver SAW filters have different pass bands and attenuate the other pass band with each other. Phase shift circuit (13) shifts the phase of receiver SAW filter (12) in the transmitter-band. In addition, phase shift circuit (13) has the characteristic impedance in which the magnitude of the reflection coefficient at the center frequency in the transmitter-band of receiver SAW filter (12) is to be not less than 0.8 and the phase angle of reflection coefficient at the center frequency in the transmitter-band of receiver SAW filter (12) takes the range from 0° to 45°.

摘要翻译： 一种天线双工器，其能够最佳地降低设备的发射机频带中的中心频率及其附近的插入损耗和电压驻波比（VSWR）。 发射器表面声波（SAW）滤波器（11）的输出端口与相移电路（13）电连接，接收器SAW滤波器（12）也电连接到该相移电路。 发射器和接收器SAW滤波器具有不同的通带，并使另一个通带衰减。 相移电路（13）使接收器SAW滤波器（12）的相位在发射机频带中移位。 此外，相移电路（13）具有特征阻抗，其中接收机SAW滤波器（12）的发射机频带中的中心频率处的反射系数的大小不得小于0.8，反射相位角 接收机SAW滤波器（12）的发射机频带中心频率处的系数取0°至45°的范围。

公开(公告)号：US20050206478A1

公开(公告)日：2005-09-22

申请号：US11078107

申请日：2005-03-11

申请人： Yuki Satoh ,  Kazushi Nishida

发明人： Yuki Satoh ,  Kazushi Nishida

IPC分类号： H03H7/46 ,  H03H9/72 ,  H04B1/00 ,  H04B1/50 ,  H04B1/52

CPC分类号： H03H9/0576 ,  H03H7/465 ,  H03H2250/00 ,  H04B1/0057 ,  H04B1/52

摘要： The disclosed is a downsized and power saving antenna duplexer. The antenna duplexer includes: diplexer; first surface acoustic wave filter to transmit/receive low channel frequency band signals; first phase shift circuit to match the transmission phase with the reception phase of first surface acoustic wave filter; second surface acoustic wave filter to transmit/receive high channel frequency band signals; second phase shift circuit to match the transmission phase with the reception phase of second surface acoustic wave filter. Diplexer, first phase shift circuit and second phase shift circuit are formed in a monolithic structure in package that includes surface acoustic wave filters. The configuration can provide the antenna duplexer with a compact size, a lower current consumption and a highly efficient performance.

摘要翻译： 所公开的是小型化和省电的天线双工器。 天线双工器包括：双工器; 第一声​​表面波滤波器发送/接收低通道频带信号; 第一移相电路将传输相位与第一声表面波滤波器的接收相位相匹配; 第二声表面波滤波器，用于发送/接收高通道频带信号; 第二移相电路，以使传输阶段与第二声表面波滤波器的接收相匹配。 双工器，第一相移电路和第二相移电路形成为包括表面声波滤波器的封装中的整体结构。 该配置可以为天线双工器提供紧凑的尺寸，更低的电流消耗和高效率的性能。

公开(公告)号：US07030539B2

公开(公告)日：2006-04-18

申请号：US10432499

申请日：2002-09-26

申请人： Mitsuhiro Furukawa ,  Kiyoharu Yamashita ,  Kazushi Nishida ,  Hiroshi Kurotake

发明人： Mitsuhiro Furukawa ,  Kiyoharu Yamashita ,  Kazushi Nishida ,  Hiroshi Kurotake

IPC分类号： H03H9/25 ,  H01L41/04

CPC分类号： H03H9/02921 ,  H03H3/08 ,  H03H9/14538

摘要： In a surface acoustic wave device, a common portion and a strip portion of a reflector electrode are partially cut off to increase a space between the electrodes. The increase of the space between the electrodes reduces the influence of the amount of charges and the influence of an unbalance between the amounts of charges in etching of a metallic film, thereby preventing the electrodes from having a curved shape in section. Consequently, the surface acoustic wave device has a reduced propagation loss.

摘要翻译： 在声表面波装置中，反射器电极的公共部分和带状部分被部分切断以增加电极之间的空间。 电极之间的空间的增加减少了金属膜的蚀刻中的电荷量的影响和电荷量之间的不平衡的影响，从而防止电极具有弯曲形状的截面。 因此，表面声波装置的传播损失减小。

公开(公告)号：US07239217B2

公开(公告)日：2007-07-03

申请号：US11078107

申请日：2005-03-11

申请人： Yuki Satoh ,  Kazushi Nishida

发明人： Yuki Satoh ,  Kazushi Nishida

IPC分类号： H03H9/72

CPC分类号： H03H9/0576 ,  H03H7/465 ,  H03H2250/00 ,  H04B1/0057 ,  H04B1/52

摘要： The disclosed is a downsized and power saving antenna duplexer. The antenna duplexer includes: diplexer; first surface acoustic wave filter to transmit/receive low channel frequency band signals; first phase shift circuit to match the transmission phase with the reception phase of first surface acoustic wave filter; second surface acoustic wave filter to transmit/receive high channel frequency band signals; second phase shift circuit to match the transmission phase with the reception phase of second surface acoustic wave filter. Diplexer, first phase shift circuit and second phase shift circuit are formed in a monolithic structure in package that includes surface acoustic wave filters. The configuration can provide the antenna duplexer with a compact size, a lower current consumption and a highly efficient performance.

摘要翻译： 所公开的是一种小型化和省电的天线双工器。 天线双工器包括：双工器; 第一声​​表面波滤波器发送/接收低通道频带信号; 第一移相电路将传输相位与第一声表面波滤波器的接收相位相匹配; 第二声表面波滤波器，用于发送/接收高通道频带信号; 第二移相电路，以使传输阶段与第二声表面波滤波器的接收相匹配。 双工器，第一相移电路和第二相移电路形成为包括表面声波滤波器的封装中的整体结构。 该配置可以为天线双工器提供紧凑的尺寸，更低的电流消耗和高效率的性能。