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41. 发明申请

US20110111695A1 Near field RFID system with multiple reader coils 有权
标题翻译：具有多个读取器线圈的近场RFID系统
公开(公告)号：US20110111695A1
公开(公告)日：2011-05-12
申请号：US12983454
申请日：2011-01-03
申请人： Amin Shameli , Aminghasem Safarian , Ahmadreza (Reza) Rofougaran , Maryam Rofougaran , Franco De Flaviis
发明人： Amin Shameli , Aminghasem Safarian , Ahmadreza (Reza) Rofougaran , Maryam Rofougaran , Franco De Flaviis
IPC分类号： H04B5/00
CPC分类号： H04B5/02 , H04B5/0031 , H04B5/0037 , H04B5/0062 , H04B5/0087 , H04L25/4904 , H04L27/02
摘要： A near field RFID system includes an RFID reader and an RFID tag. The RFID reader includes a transmit path and a receive path, wherein the transmit path includes: an encoding section coupled to convert data into encoded data; a digital to analog conversion module coupled to convert the encoded data into an analog encoded signal; a power amplifier coupled to amplify the analog encoded signal; and a plurality of coils coupled to generate a plurality of electromagnetic fields from the analog encoded signal. The RFID tag that includes: a coil coupled to generate a current and a recovered signal from at least one of the plurality of electromagnetic fields; a power recovery circuit coupled to generate a voltage from the current; and a data processing section coupled to process the recovered signal, wherein the data processing section is powered via the voltage.
摘要翻译：近场RFID系统包括RFID读取器和RFID标签。 RFID读取器包括发送路径和接收路径，其中发送路径包括：耦合以将数据转换为编码数据的编码部分; 耦合到将所述编码数据转换为模拟编码信号的数模转换模块; 功率放大器，被耦合以放大所述模拟编码信号; 以及耦合以从所述模拟编码信号产生多个电磁场的多个线圈。 RFID标签包括：线圈，其被耦合以从多个电磁场中的至少一个产生电流和恢复的信号; 功率恢复电路，其耦合以从电流产生电压; 以及数据处理部分，其耦合以处理恢复的信号，其中所述数据处理部分经由所述电压供电。

42. 发明授权

US06947010B2 Eccentric spiral antenna 有权
标题翻译：偏心螺旋天线
公开(公告)号：US06947010B2
公开(公告)日：2005-09-20
申请号：US11002643
申请日：2004-12-03
申请人： Nicolaos G. Alexopoulos , Franco De Flaviis , Jesus Alfonso Castaneda
发明人： Nicolaos G. Alexopoulos , Franco De Flaviis , Jesus Alfonso Castaneda
IPC分类号： H01Q1/24 , H01Q1/38 , H01Q3/24 , H01Q11/10 , H01Q25/00 , H01Q1/36
CPC分类号： H01Q1/241 , H01Q1/38 , H01Q3/24 , H01Q11/105 , H01Q25/002
摘要： A system includes a support device and an elongated spiral antenna coupled to the support device. The elongated spiral antenna has a contracted portion and an expanded portion. The expanded portion provides beam steering and directivity. The system also includes a feed line coupled to the elongated spiral antenna. A method for forming the elongated spiral antenna uses a predetermined formula to form arms of the elongated spiral antenna. The arms can be formed by printing the arms on a printed circuit board.
摘要翻译：系统包括支撑装置和耦合到支撑装置的细长螺旋天线。细长螺旋天线具有收缩部分和扩展部分。扩展部分提供光束转向和方向性。该系统还包括耦合到细长螺旋天线的馈线。用于形成细长螺旋天线的方法使用预定公式形成细长螺旋天线的臂。臂可以通过将印刷臂印在印刷电路板上而形成。

43. 发明申请

US20050083244A1 Eccentric spiral antenna 有权
公开(公告)号：US20050083244A1
公开(公告)日：2005-04-21
申请号：US11002643
申请日：2004-12-03
申请人： Nicolaos Alexopoulos , Franco De Flaviis , Jesus Castaneda
发明人： Nicolaos Alexopoulos , Franco De Flaviis , Jesus Castaneda
IPC分类号： H01Q1/24 , H01Q1/38 , H01Q3/24 , H01Q11/10 , H01Q25/00 , H01Q1/36
CPC分类号： H01Q1/241 , H01Q1/38 , H01Q3/24 , H01Q11/105 , H01Q25/002
摘要： A system includes a support device and an elongated spiral antenna coupled to the support device. The elongated spiral antenna has a contracted portion and an expanded portion. The expanded portion provides beam steering and directivity. The system also includes a feed line coupled to the elongated spiral antenna. A method for forming the elongated spiral antenna uses a predetermined formula to form arms of the elongated spiral antenna. The arms can be formed by printing the arms on a printed circuit board.

44. 发明申请

US20050062653A1 MEMS fabrication on a laminated substrate 有权
标题翻译：层压基板上的MEMS制造
公开(公告)号：US20050062653A1
公开(公告)日：2005-03-24
申请号：US10751131
申请日：2003-12-31
申请人： Bedri Cetiner , Mark Bachman , Guann-Pyng Li , Jiangyuan Qian , Hung-Pin Chang , Franco De Flaviis
发明人： Bedri Cetiner , Mark Bachman , Guann-Pyng Li , Jiangyuan Qian , Hung-Pin Chang , Franco De Flaviis
IPC分类号： H01Q1/38 , H01Q1/26
CPC分类号： H01Q1/38
摘要： Systems and methods are provided that facilitate the formation of micro-mechanical structures and related systems on a laminated substrate. More particularly, a micro-mechanical device and a three-dimensional multiple frequency antenna are provided for in which the micro-mechanical device and antenna, as well as additional components, can be fabricated together concurrently on the same laminated substrate. The fabrication process includes a low temperature deposition process allowing for deposition of an insulator material at a temperature below the maximum operating temperature of the laminated substrate, as well as a planarization process allowing for the molding and planarizing of a polymer layer to be used as a form for a micro-mechanical device.
摘要翻译：提供了有助于在层压基板上形成微机械结构和相关系统的系统和方法。更具体地，提供了微机械装置和三维多频天线，其中微机械装置和天线以及附加部件可以在同一叠层基板上同时制造在一起。该制造方法包括一种低温沉积工艺，其允许在低于层合基板的最大工作温度的温度下沉积绝缘体材料，以及允许将聚合物层模制和平坦化的平坦化工艺，形式用于微机械装置。

45. 发明授权

US06791431B2 Compact balun with rejection filter for 802.11a and 802.11b simultaneous operation 失效
标题翻译：紧凑型平衡 - 不平衡转换器，具有用于802.11a和802.11b同时操作的滤波器
公开(公告)号：US06791431B2
公开(公告)日：2004-09-14
申请号：US10232617
申请日：2002-09-03
申请人： Franco De Flaviis
发明人： Franco De Flaviis
IPC分类号： H01P510
CPC分类号： H01P1/203 , H01P5/10 , H03H7/42 , H03H7/48
摘要： A balancing/unbalancing (balun) structure for operating at frequency f1 includes a microstrip printed circuit board (PCB). A balun on the PCB includes two input ports are coupled to a differential signal. An isolated port is connected to ground through a matched resistance. An output port is coupled to a single-ended signal corresponding to the differential signal. A plurality of traces on the PCB connect the two input ports, the load connection port and a tap point to the output port. A f2 rejection filter on the PCB is wrapped around the balun and includes a first folded element with a transmission length of &lgr;2/4 and connected to the output port. A second folded element has a transmission length of &lgr;2/4 and connected to the tap point. A third folded element connects the tap point to the output port and has a transmission length of &lgr;2/4.
摘要翻译：用于频率f1操作的平衡/不平衡（平衡 - 不平衡转换）结构包括微带印刷电路板（PCB）。 PCB上的平衡 - 不平衡变换器包括两个输入端口耦合到差分信号。隔离端口通过匹配电阻连接到地。输出端口耦合到对应于差分信号的单端信号。 PCB上的多条迹线将两个输入端口，负载连接端口和分接点连接到输出端口。 PCB上的f2抑制滤波器被卷绕在平衡 - 不平衡转换器上，并包括传输长度为λ2/ 4并连接到输出端口的第一折叠元件。第二折叠元件具有λ2/ 4的透射长度并连接到抽头点。第三个折叠元件将抽头点连接到输出端口，并具有λ2/ 4的传输长度。

46. 发明授权

US06608603B2 Active impedance matching in communications systems 有权
标题翻译：通信系统中的有源阻抗匹配
公开(公告)号：US06608603B2
公开(公告)日：2003-08-19
申请号：US09935701
申请日：2001-08-24
申请人： Nicolaos G. Alexopoulos , Franco De Flaviis
发明人： Nicolaos G. Alexopoulos , Franco De Flaviis
IPC分类号： H03H740
CPC分类号： H03H7/40
摘要： A signal sensing module senses an RF signal and produces one or more secondary signals representative of the RF signal. An impedance matching control module generates a control signal, based on the one or more secondary signals, which is indicative of an impedance mismatch between a load and a communications device. The control signal is then applied to at least one variable impedance device to adjust the impedance of an impedance matching network and thereby reduce the impedance mismatch between the load and the communications device. In an embodiment, the at least one variable impedance device is a barium strontium titanate, thin film, parallel plate capacitor. In other embodiments, other variable impedance devices such as other types of thin film capacitors or varactor diodes are be used to adjust the impedance of the impedance matching network.
摘要翻译：信号感测模块感测RF信号并产生表示RF信号的一个或多个次要信号。阻抗匹配控制模块基于一个或多个辅助信号产生控制信号，其表示负载和通信设备之间的阻抗失配。然后将控制信号施加到至少一个可变阻抗装置以调整阻抗匹配网络的阻抗，从而减少负载和通信装置之间的阻抗失配。在一个实施例中，至少一个可变阻抗器件是钛酸锶钡，薄膜，平行板电容器。在其他实施例中，可以使用诸如其他类型的薄膜电容器或变容二极管的其它可变阻抗器件来调整阻抗匹配网络的阻抗。

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