公开(公告)号：US20070135167A1

公开(公告)日：2007-06-14

申请号：US11296441

申请日：2005-12-08

申请人： I-Ru Liu

发明人： I-Ru Liu

IPC分类号： H04B1/02 ,  H04M1/00 ,  H04B7/02

CPC分类号： H04B7/086 ,  H01Q3/2617 ,  H01Q21/06

摘要： A hybrid wireless network system is disclosed. The hybrid wireless network system includes an antenna array, an analog subsystem, and a digital subsystem. The antenna array at least includes two antenna elements. In the case of using multiple antenna elements to extend link range and coverage, a coarse-fine method is included for antenna elements selection. The analog subsystem calculates a difference signal and a sum signal based on the two RF signals. The analog subsystem includes step leveling devices. The digital subsystem estimates a direction-of-arrival (DOA) based on the sum signal and the difference signal. The step-leveling devices receive weights from the digital subsystem, in form of a feedback control, to apply the weights on the two RF signals respectively. The digital subsystem repetitively calculates new weights to update a beam pattern formed by the two RF signals until the DOA approaches null.

摘要翻译： 公开了一种混合无线网络系统。 混合无线网络系统包括天线阵列，模拟子系统和数字子系统。 天线阵列至少包括两个天线元件。 在使用多个天线元件来扩展链路范围和覆盖范围的情况下，包括天线元件选择的粗细方法。 模拟子系统基于两个RF信号来计算差分信号和和信号。 模拟子系统包括步进调平装置。 数字子系统基于和信号和差分信号来估计到达方向（DOA）。 步进调平装置以反馈控制的形式从数字子系统接收加权，以分别在两个RF信号上施加权重。 数字子系统重复计算新的权重以更新由两个RF信号形成的波束图，直到DOA接近零。

公开(公告)号：US07224941B2

公开(公告)日：2007-05-29

申请号：US10687641

申请日：2003-10-20

申请人： I-Ru Liu

发明人： I-Ru Liu

IPC分类号： H04B17/00

CPC分类号： H04B17/20

摘要： The present invention provides a system and method for multi-path simulation that employs a shielded anechoic chamber to avoid external electromagnetic interference and other uncontrollable transmission paths generated in testing, and divides and adjusts a signal into multiple simulation signals to simulate the attenuations and delays generated in multi-path transmission of the signals. The shielded anechoic chamber includes a turntable, controlled by a control unit, for carrying a wireless communication device to be tested and for changing the reception azimuth of the device, thereby measuring the electric wave transceiving of the device.

摘要翻译： 本发明提供了一种用于多路径仿真的系统和方法，其采用屏蔽电波暗室以避免外部电磁干扰和测试中产生的其他不可控制的传输路径，并将信号划分并调整为多个仿真信号，以模拟产生的衰减和延迟 在多路径传输信号。 屏蔽消声室包括由控制单元控制的用于携带要测试的无线通信设备并改变设备的接收方位的转盘，从而测量设备的电波收发。

公开(公告)号：US20070077895A1

公开(公告)日：2007-04-05

申请号：US11240395

申请日：2005-10-03

申请人： Ting-Yi Tsai ,  Wen Luo ,  Taiho Wu ,  Jia-Haur Liang ,  I-Ru Liu

发明人： Ting-Yi Tsai ,  Wen Luo ,  Taiho Wu ,  Jia-Haur Liang ,  I-Ru Liu

IPC分类号： H04B1/44

CPC分类号： H04B1/006 ,  H04B7/0602 ,  H04B7/0802

摘要： A switch circuitry corresponds with a plurality of antennae. The switch circuitry includes a first switch module, a second switch module, and a third switch module. In this case, the first switch module, the second switch module, and the third switch module have a plurality of control leads, a plurality of signal leads, and a plurality of antenna leads respectively. The third switch module further has a plurality of transmission leads. Each signal lead connects with corresponding one of the antenna leads. In addition, an access point including the switch circuitry is provided.

摘要翻译： 开关电路对应于多个天线。 开关电路包括第一开关模块，第二开关模块和第三开关模块。 在这种情况下，第一开关模块，第二开关模块和第三开关模块分别具有多个控制引线，多个信号引线和多个天线引线。 第三开关模块还具有多个传输线。 每个信号引线与相应的天线引线相连。 此外，提供了包括开关电路的接入点。

公开(公告)号：US20070047560A1

公开(公告)日：2007-03-01

申请号：US11216902

申请日：2005-08-31

申请人： Ting-Yi Tsai ,  I-Ru Liu

发明人： Ting-Yi Tsai ,  I-Ru Liu

IPC分类号： H04L12/28

CPC分类号： H04B7/088 ,  H01Q3/24 ,  H04B7/0695 ,  H04B7/0814 ,  H04B17/318 ,  H04W24/00 ,  H04W88/14

摘要： A wireless bridge for communicating with another wireless bridge. The wireless bridge comprises a plurality of phased-array antennas, an antenna selector and a transceiver. The phased-array antennas each forms a beam and transmits/receives a signal to/from the other wireless bridge, and the beams are overlapped in angles. The antenna selector is connected to the phased-array antennas for selecting one as a main antenna according to the plurality of received signals. The received signal strength indicator (RSSI) of the signal received by the main antenna is the largest than that received by the other phased-array antennas. Then the transceiver makes transmission/reception via the main antenna.

摘要翻译： 用于与另一无线网桥通信的无线网桥。 无线电桥包括多个相控阵天线，天线选择器和收发器。 相控阵天线各自形成一个波束，并向另一个无线电桥发送/接收一个信号，并且这些波束以角度重叠。 天线选择器连接到相控阵天线，用于根据多个接收信号选择一个作为主天线。 由主天线接收到的信号的接收信号强度指示符（RSSI）大于由其他相控阵列天线接收的信号强度指示符（RSSI）。 然后收发器通过主天线进行发送/接收。

公开(公告)号：US07183979B1

公开(公告)日：2007-02-27

申请号：US11209813

申请日：2005-08-24

申请人： I-Ru Liu ,  Hong-Kun Tyan

发明人： I-Ru Liu ,  Hong-Kun Tyan

IPC分类号： H01Q1/38

CPC分类号： H01Q9/0421 ,  H01Q9/0442

摘要： A dual-band patch antenna with a slot structure is disclosed. The dual-band patch antenna comprises a metal-work antenna including a rectangular (patch) radiator on which an L-shaped slot structure is formed; two shorting strips and vertically shorted to a conductive ground plane formed on a base board; and a feeding means inserted into the base board. When the dual-band patch antenna is operated at about 2.45 GHz and about 5.4 GHz, good radiation pattern and antenna gain are obtained for being applicable to IEEE802.11b/g/a/j or Bluetooth specifications.

摘要翻译： 公开了一种具有槽结构的双频贴片天线。 双频贴片天线包括金属工作天线，其包括形成有L形槽结构的矩形（贴片）散热器; 两个短路条垂直短路到形成在基板上的导电接地平面; 以及插入到基板中的进给装置。 当双频贴片天线在大约2.45GHz和大约5.4GHz的情况下工作时，获得适用于IEEE802.11b / g / a / j或蓝牙规范的良好辐射图和天线增益。

公开(公告)号：US07145510B2

公开(公告)日：2006-12-05

申请号：US11121007

申请日：2005-05-04

申请人： I-Ru Liu ,  Chin-Hua Lu

发明人： I-Ru Liu ,  Chin-Hua Lu

IPC分类号： H01Q1/38

CPC分类号： H01Q13/106

摘要： A microstrip antenna having a slot structure is disclosed for providing a sufficient bandwidth so as to meet the antenna requirements. The microstrip antenna is composed of a base board (such as a printed circuit board) and a microstrip patch radiator having the slot structure, wherein the microstrip patch radiator is formed on the base board. The slot structure is composed of an L-shaped slot and an inverted reversed-L-shaped slot, wherein the L-shaped slot and the inverted reversed-L-shaped slot are mirror-reflected to each other symmetrically to a point. One end of each of the L-shaped and inverted reversed-L-shaped slots is connected to an extension slot.

摘要翻译： 公开了一种具有槽结构的微带天线，用于提供足够的带宽以满足天线要求。 微带天线由基板（例如印刷电路板）和具有槽结构的微带贴片散热器构成，其中微带贴片散热器形成在基板上。 槽结构由L形槽和反向倒L形的槽组成，其中L形槽和反向倒L形槽相对于一个点彼此镜像反射。 每个L形和倒置的倒L形槽的一端连接到延伸槽。

公开(公告)号：US20060252419A1

公开(公告)日：2006-11-09

申请号：US11245207

申请日：2005-10-07

申请人： I-Ru Liu

发明人： I-Ru Liu

IPC分类号： H04Q7/20

CPC分类号： H04W24/06

摘要： A signal testing system is disclosed, which is capable of achieving a bi-directional wireless transmission measurement enabling mutual testing between device-under-tests and reference devices by configuring a symmetrical structure with circulators and multiplexers. Moreover, the signal testing system not only is capable of fetching signal out of a test path by the use of power dividers and then transmitting the fetched signal to a signal analyzer to be analyzed so as to enable the system to support multiple testing, but also is capable of generating a signal used for referencing by a signal synthesizer so as to enable the system to support numerous tests. In addition, both the signal analyzer and the signal synthesizer have a switch control integrated therein, which enables the signal analyzer to perform analysis on signals of different frequency bandwidth, and enables the signal synthesizer to generate signals of different frequency bandwidth as require.

摘要翻译： 公开了一种信号测试系统，其能够实现双向无线传输测量，其通过用循环器和多路复用器配置对称结构来实现测试装置与参考装置之间的相互测试。 此外，信号测试系统不仅能够通过使用功率分配器将信号从测试路径中取出，然后将获取的信号发送到信号分析仪进行分析，以使系统能够支持多个测试，但也可以 能够产生用于由信号合成器引用的信号，以使系统能够支持许多测试。 此外，信号分析器和信号合成器都集成了开关控制，使得信号分析仪能够对不同频率带宽的信号进行分析，并且使信号合成器能够根据需要生成不同频率带宽的信号。

公开(公告)号：US20060250307A1

公开(公告)日：2006-11-09

申请号：US11291971

申请日：2005-12-02

申请人： I-Ru Liu ,  Hong-Kun Tyan

发明人： I-Ru Liu ,  Hong-Kun Tyan

IPC分类号： H01Q1/38

CPC分类号： H01Q9/0421

摘要： An antenna structure is proposed in the present invention. It includes a radiative element having at least two ends. One end of the radiative element has a grounding element connected to a ground plane. Another end of the radiative element has a feed element connected to a transmission line. The feed element is disposed diagonally relative to the grounding element. In this way, the present invention increases the bandwidth of the antenna and improves its functionality. Therefore, the antenna of the present invention is more convenient when in use.

摘要翻译： 在本发明中提出了一种天线结构。 它包括具有至少两个端部的辐射元件。 辐射元件的一端具有连接到接地平面的接地元件。 辐射元件的另一端具有连接到传输线的馈送元件。 馈电元件相对于接地元件对角设置。 以这种方式，本发明增加了天线的带宽并提高了其功能。 因此，本发明的天线在使用时更加方便。

公开(公告)号：US20050253766A1

公开(公告)日：2005-11-17

申请号：US11121007

申请日：2005-05-04

申请人： I-Ru Liu ,  Chin-Hua Lu

发明人： I-Ru Liu ,  Chin-Hua Lu

IPC分类号： H01Q13/08 ,  H01Q13/10

CPC分类号： H01Q13/106

摘要： A microstrip antenna having a slot structure is disclosed for providing a sufficient bandwidth so as to meet the antenna requirements. The microstrip antenna is composed of a base board (such as a printed circuit board) and a microstrip patch radiator having the slot structure, wherein the microstrip patch radiator is formed on the base board. The slot structure is composed of an L-shaped slot and an inverted reversed-L-shaped slot, wherein the L-shaped slot and the inverted reversed-L-shaped slot are mirror-reflected to each other symmetrically to a point. One end of each of the L-shaped and inverted reversed-L-shaped slots is connected to an extension slot.

摘要翻译： 公开了一种具有槽结构的微带天线，用于提供足够的带宽以满足天线要求。 微带天线由基板（例如印刷电路板）和具有槽结构的微带贴片散热器构成，其中微带贴片散热器形成在基板上。 槽结构由L形槽和反向倒L形的槽组成，其中L形槽和反向倒L形槽相对于一个点彼此镜像反射。 每个L形和倒置的倒L形槽的一端连接到延伸槽。

公开(公告)号：US20050253757A1

公开(公告)日：2005-11-17

申请号：US11122081

申请日：2005-05-05

申请人： I-Ru Liu ,  Chin-Hua Lu

发明人： I-Ru Liu ,  Chin-Hua Lu

IPC分类号： H01Q1/24 ,  H01Q1/38 ,  H01Q5/00 ,  H01Q9/04 ,  H01Q21/20

CPC分类号： H01Q9/0421 ,  H01Q1/243 ,  H01Q9/0442

摘要： A microstrip antenna having a slot structure is disclosed for providing a sufficient bandwidth so as to meet the antenna requirements. The microstrip antenna is composed of a base board (such as a printed circuit board) and a microstrip patch radiator having the slot structure, wherein the microstrip patch radiator is formed on the base board. The slot structure is composed of a T-shaped slot, an L-shaped slot and a reversed-L-shaped slot, wherein the L-shaped slot and the reversed-L-shaped slot are mirror-reflected to each other.

摘要翻译： 公开了一种具有槽结构的微带天线，用于提供足够的带宽以满足天线要求。 微带天线由基板（例如印刷电路板）和具有槽结构的微带贴片散热器构成，其中微带贴片散热器形成在基板上。 槽结构由T形槽，L形槽和L形槽构成，其中L形槽和反L形槽相互镜像反射。