公开(公告)号：US20130300612A1

公开(公告)日：2013-11-14

申请号：US13741095

申请日：2013-01-14

申请人： Li-Chun Shiue ,  Dau-Chyrh Chang

发明人： Li-Chun Shiue ,  Dau-Chyrh Chang

IPC分类号： H01Q9/04

CPC分类号： H01Q9/0407

摘要： The technology disclosed relates to patch antennas and methods of using a patch antenna. In particular, it relates to using a rectangular or square ring radiator and a pair of rectangular ring resonators in a patch antenna. The designs and methods described can, for instance, be applied to communications at about 698 to 746 MHz or 746 to 806 MHz, in a frequency range such as 698-806 MHz.

摘要翻译： 所公开的技术涉及贴片天线和使用贴片天线的方法。 特别地，涉及在贴片天线中使用矩形或方形环形辐射器和一对矩形环形谐振器。 所描述的设计和方法可以例如在诸如698-806MHz的频率范围内应用于大约698至746MHz或746至806MHz的通信。

公开(公告)号：US20210210863A1

公开(公告)日：2021-07-08

申请号：US16736836

申请日：2020-01-08

申请人： Dau-Chyrh Chang

发明人： Dau-Chyrh Chang

IPC分类号： H01Q19/19 ,  H01Q1/36 ,  H01Q7/00 ,  H01Q19/10 ,  H01Q15/16

摘要： This invention describes the technology of toroidal CATR (compact antenna test range) for generating multiple directional plane waves propagate toward the center axis of QZ (quiet zone). The toroidal CATR consists of torus as main reflector, sub-reflectors, and the corresponding feed antennas of sub-reflectors. This invention is to provide multiple directional plane waves propagating toward the center axis of torus which is also the center axis of QZ. The performances of QZ in this invention are with larger size of QZ and better electrical performance inside QZ. Due to the capability of multiple directional plane waves propagating toward the center axis of QZ, the complexity of positioner (turntable) for AUT (antenna under test) or radar target RCS (radar cross section) in three dimensional power pattern measurement will be simplified.

公开(公告)号：US08780005B2

公开(公告)日：2014-07-15

申请号：US13570437

申请日：2012-08-09

申请人： Cheng-Wei Chen ,  Hsiao-Pin Liang ,  Dau-Chyrh Chang

发明人： Cheng-Wei Chen ,  Hsiao-Pin Liang ,  Dau-Chyrh Chang

IPC分类号： H01Q1/52 ,  H01Q1/24

CPC分类号： H01Q1/52 ,  H01Q1/243 ,  H01Q1/526 ,  H01Q9/42 ,  H04B1/0475 ,  H04B1/1009 ,  H04B15/04

摘要： A wireless security device includes a nonconductive housing, a mother circuit board, a wireless expansion card, and a metal reflector. The mother circuit board and the wireless expansion card are disposed in the nonconductive housing. The mother circuit board includes a processor. The wireless expansion card includes a dielectric substrate, a ground plane, an inverted-F antenna, and an RF (radio frequency) module. The metal reflector is positioned between the mother circuit board and the wireless expansion card, and is close to the inverted-F antenna. The metal reflector is configured to reduce EMI (Electromagnetic Interference) from the mother circuit board so as to maintain performance of the inverted-F antenna.

摘要翻译： 无线安全装置包括非导电壳体，母电路板，无线扩展卡和金属反射器。 母电路板和无线扩展卡设置在非导电外壳中。 母电路板包括一个处理器。 无线扩展卡包括电介质基板，接地平面，倒F天线和RF（射频）模块。 金属反射器位于母电路板和无线扩展卡之间，并且靠近倒F天线。 金属反射器被配置为降低来自母电路板的EMI（电磁干扰），以保持倒F天线的性能。

公开(公告)号：US11101569B2

公开(公告)日：2021-08-24

申请号：US16736836

申请日：2020-01-08

申请人： Dau-Chyrh Chang

发明人： Dau-Chyrh Chang

IPC分类号： H01Q19/19 ,  H01Q1/36 ,  H01Q15/16 ,  H01Q19/10 ,  H01Q7/00

摘要： This invention describes the technology of toroidal CATR (compact antenna test range) for generating multiple directional plane waves propagate toward the center axis of QZ (quiet zone). The toroidal CATR consists of torus as main reflector, sub-reflectors, and the corresponding feed antennas of sub-reflectors. This invention is to provide multiple directional plane waves propagating toward the center axis of torus which is also the center axis of QZ. The performances of QZ in this invention are with larger size of QZ and better electrical performance inside QZ. Due to the capability of multiple directional plane waves propagating toward the center axis of QZ, the complexity of positioner (turntable) for AUT (antenna under test) or radar target RCS (radar cross section) in three dimensional power pattern measurement will be simplified.

公开(公告)号：US20090033438A1

公开(公告)日：2009-02-05

申请号：US11833195

申请日：2007-08-02

申请人： Dau-Chyrh Chang ,  Bing-Hao Zeng ,  Ji-Chyun Liu

发明人： Dau-Chyrh Chang ,  Bing-Hao Zeng ,  Ji-Chyun Liu

IPC分类号： H01P1/18

CPC分类号： H01P1/184

摘要： An adjustable phase shifter for an antenna includes a metal circuit portion, a coupling portion, and a grounding portion. The metal circuit portion is used for receiving a fed-in signal, while the coupling portion is disposed on one side of the metal circuit portion and is disposed at an angle with respect to the metal circuit portion, for controlling a phase angle of the fed-in signal by adjusting the angle formed therebetween. The grounding portion is disposed on the other side of the metal circuit portion in parallel. The structure of the adjustable phase shifter for adjusting the phase angle output by the phase shifter is simple, so as to improving the fabrication efficiency. Moreover, the fabrication efficiency of the adjustable phase shifter is able to be further improved by adopting an attachable impedance matcher, or changing the structure of the coupling portion.

摘要翻译： 用于天线的可调移相器包括金属电路部分，耦合部分和接地部分。 金属电路部分用于接收馈入信号，而耦合部分设置在金属电路部分的一侧并相对于金属电路部分设置成一定角度，用于控制馈电的相位角 通过调整其间形成的角度来进行信号。 接地部平行配置在金属电路部的另一侧。 用于调节由移相器输出的相位角的可调移相器的结构是简单的，从而提高制造效率。 此外，通过采用可附接的阻抗匹配器或改变耦合部分的结构，能够进一步提高可调式移相器的制造效率。

公开(公告)号：US08786513B2

公开(公告)日：2014-07-22

申请号：US13566383

申请日：2012-08-03

申请人： Hsiao-Pin Liang ,  Dau-Chyrh Chang ,  Cheng-Wei Chen

发明人： Hsiao-Pin Liang ,  Dau-Chyrh Chang ,  Cheng-Wei Chen

IPC分类号： H01Q1/48

CPC分类号： H01Q1/38 ,  H01Q1/48 ,  H01Q9/42 ,  H05K1/0227 ,  H05K1/0243 ,  H05K1/0245 ,  H05K2201/10098

摘要： A device for enhancing electromagnetic susceptibility comprises a first bridge. The first bridge is near to a first trace of a differential pair routing and electrically connects an RF grounding with an analog grounding. The RF grounding and the analog grounding are separated. The differential pair routing transmits signals between an RF circuit and an analog circuit. The first trace of the differential pair routing is closer to an antenna coupled to the RF grounding than a second trace of the differential pair routing. The RF circuit is coupled to the RF grounding, and the analog circuit is coupled to the analog grounding.

摘要翻译： 用于增强电磁敏感性的装置包括第一桥。 第一座桥接近差分对路由的第一条路径，并将RF接地与模拟地线电连接。 RF接地和模拟接地分开。 差分对路由在RF电路和模拟电路之间传输信号。 差分对路由的第一个迹线比差分对路由的第二个跟踪更靠近耦合到RF接地的天线。 RF电路耦合到RF接地，模拟电路耦合到模拟接地。