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公开(公告)号：US07408511B2
公开(公告)日：2008-08-05
申请号：US11342708
申请日：2006-01-31
申请人： I-Ru Liu
发明人： I-Ru Liu
CPC分类号： H01Q9/0421 , H01Q9/16 , H01Q21/28
摘要： The present invention provides a MIMO antenna structure and design. A single dipole antenna stands at the center of a triangle which is formed by three PIFAs antennas, and the three PIFA antennas has equal squint angle relative to the neighbors, that is there is 120° sector angle between any two PIFA axes of three such that the dipole and the other PIFAs forms a tetrahedron. The MIMO antenna structure of the present invention is simpler in mechanics but high efficiency in performance.
摘要翻译： 本发明提供一种MIMO天线结构和设计。 单个偶极天线位于由三个PIFA天线形成的三角形的中心，并且三个PIFA天线相对于邻居具有相等的斜角，即三个PIFA轴之间有120°的扇形角，使得 偶极子和其他PIFA形成四面体。 本发明的MIMO天线结构在力学上更简单，但效率高。
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公开(公告)号：US20070190948A1
公开(公告)日：2007-08-16
申请号：US11352996
申请日：2006-02-14
申请人： I-Ru Liu
发明人： I-Ru Liu
IPC分类号： H04B1/44
CPC分类号： H04B1/38
摘要： A radio frequency (RF) module cooperates with an antenna and a digital signal processing (DSP) module. The DSP module outputs a first digital signal to the RF module, and the antenna outputs a second RF signal to the RF module. The RF module comprises a digital analog hybrid signal processing unit and an analog signal processing unit. In this case, the digital analog hybrid signal processing unit converts the first digital signal into a first analog signal or converts a second analog signal into a second digital signal, and outputs the second digital signal to the DSP module. The analog signal processing unit generates a first RF signal in accordance with the first analog signal or generates the second analog signal in accordance with the second RF module, and outputs the first RF signal to the antenna or outputs the second analog signal to the digital analog hybrid signal processing unit.
摘要翻译： 射频（RF）模块与天线和数字信号处理（DSP）模块协作。 DSP模块向RF模块输出第一数字信号，天线向RF模块输出第二RF信号。 RF模块包括数字模拟混合信号处理单元和模拟信号处理单元。 在这种情况下，数字模拟混合信号处理单元将第一数字信号转换为第一模拟信号或将第二模拟信号转换为第二数字信号，并将第二数字信号输出到DSP模块。 模拟信号处理单元根据第一模拟信号生成第一RF信号，或者根据第二RF模块产生第二模拟信号，并将第一RF信号输出到天线或将第二模拟信号输出到数字模拟 混合信号处理单元。
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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
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。
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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。
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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。
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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。
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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。
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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。
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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
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。
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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
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。
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