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11. 发明申请

US20060284652A1 Power detecting circuit and demodulator comprising it 审中-公开
标题翻译：功率检测电路和解调器组成
公开(公告)号：US20060284652A1
公开(公告)日：2006-12-21
申请号：US10493241
申请日：2001-10-31
申请人： Masayoshi Abe , Noboru Sasho , Dragan Krupezevic , Veselin Brankovic , Mohamed Ratni
发明人： Masayoshi Abe , Noboru Sasho , Dragan Krupezevic , Veselin Brankovic , Mohamed Ratni
IPC分类号： H03K9/06
CPC分类号： H03D1/18
摘要： A high performance power detection circuit suitable to be made monolithic, being compact and low at cost, suitable to a radio-frequency operation in a wide band, having excellent linearity in detection characteristics, small fluctuation of detection characteristics against bias fluctuation, small fluctuation of detection characteristics against FET threshold voltage fluctuation and a small DC offset, which does not require an additional circuit even when a subsequent circuit has a balanced input; and a demodulator using the same. The power detection circuit uses two transistors (FET) Q101 and Q102 having approximately same characteristics, wherein a connection point of sources are connected to a resistor element R103 as a current source, are used as active elements; gates and drains of the transistors Q101 and Q102 are supplied with approximately same bias voltages; drains of them are supplied with approximately same drain bias voltages; a capacitor C104, wherein a capacitance value is set to be a sufficiently large value, is connected between sources of transistors Q101 and Q102 and a ground; capacitors C102 and C103, wherein capacitance values are approximately same and set to be sufficiently large values, are connected between drains of the transistors Q101 and Q102 and a ground; a radio-frequency signal RFin is supplied to a gate of the transistor Q101; and a voltage difference between a drain of the transistor Q101 and a drain of the transistor Q102 is regarded as a detection output.
摘要翻译：高性能功率检测电路适用于单片，小巧，成本低，适用于宽带的射频工作，检测特性线性好，检测特性与偏置波动的波动小，波动小即使在后续电路具有平衡输入的情况下也不需要额外的电路; 以及使用该解调器的解调器。功率检测电路使用具有大致相同特性的两个晶体管（FET）Q 101和Q 102，其中源极的连接点连接到作为电流源的电阻器元件R 103用作有源元件; 晶体管Q 101和Q 102的栅极和漏极被提供有大致相同的偏置电压; 它们的漏极具有大致相同的漏极偏置电压; 将电容值设定为足够大的电容器C 104连接在晶体管Q 101和Q 102的源极与地之间; 电容器C 102和C 103，其中电容值大致相同且设置为足够大的值，连接在晶体管Q 101和Q 102的漏极与地之间; 射频信号RFin被提供给晶体管Q 101的栅极; 将晶体管Q101的漏极与晶体管Q102的漏极之间的电压差作为检测输出。

12. 发明授权

US07039129B2 Demodulator structure utilizing DC switches 失效
标题翻译：采用直流开关的解调器结构
公开(公告)号：US07039129B2
公开(公告)日：2006-05-02
申请号：US09901273
申请日：2001-07-09
申请人： Mohamed Ratni , Dragan Krupezevic , Veselin Brankovic , Masayoshi Abe , Noboru Sasho
发明人： Mohamed Ratni , Dragan Krupezevic , Veselin Brankovic , Masayoshi Abe , Noboru Sasho
IPC分类号： H44L27/16
CPC分类号： H04L27/22 , H03D3/007 , H04B1/30
摘要： The present invention relates to an I/Q demodulator (21) comprising a n-port structure (1,16) is provided, wherein n is an integer value of 4,5 or 6. The demodulator (21) is supplied at a first input (3) with a RF signal (2) which has to be demodulated. At a second input (5) it is supplied with a second RF signal (4). The n−2 output signals (6) are detected by power sensors (7). After low pass filtering (14) the output signals of the power sensors (7) are multiplexed by a multiplexing means (8).
摘要翻译：本发明涉及一种包括n端口结构（I16）的I / Q解调器（21），其中n是4,5或6的整数值。解调器（21）以第一输入（3）与必须被解调的RF信号（2）。在第二输入（5）处，它被提供有第二RF信号（4）。 n-2个输出信号（6）由功率传感器（7）检测。在低通滤波（14）之后，功率传感器（7）的输出信号由复用装置（8）复用。

13. 发明授权

US06683471B2 Power detector using FET transistor 失效
标题翻译：功率检测器采用FET晶体管
公开(公告)号：US06683471B2
公开(公告)日：2004-01-27
申请号：US09938146
申请日：2001-08-22
申请人： Mohamed Ratni , Dragan Krupezevic , Veselin Brankovic , Masayoshi Abe , Noboru Sasho
发明人： Mohamed Ratni , Dragan Krupezevic , Veselin Brankovic , Masayoshi Abe , Noboru Sasho
IPC分类号： G01R3126
CPC分类号： G01R21/10
摘要： The present invention relates to a circuitry for detecting the power of a RF signal (7) comprising a FET transistor (1) connected in parallel to two inputs (2, 2′) for supplying the RF signal and two outputs (13, 13′) for detecting the power of the RF signal (7). The circuitry has a resistor (9) having a resistance larger than the drain-source resistance of the FET transistor (1). This resistor (9) is connected between one of the outputs and the source (14) of the FET transistor (19. Further a capacitor (10) is connected between one of the input and the source of the FET transistor. The gate (8) of the FET transistor is connected to ground.
摘要翻译：本发明涉及一种用于检测RF信号（7）的功率的电路，该RF信号（7）包括并联连接到用于提供RF信号的两个输入（2,2'）的FET晶体管（1），以及两个输出（13,13' ），用于检测RF信号（7）的功率。电路具有电阻（9），其电阻大于FET晶体管（1）的漏极 - 源极电阻。该电阻器（9）连接在FET晶体管（19）的一个输出端和源极（14）之间。此外，电容器（10）连接在FET晶体管的输入源和源极之一中，栅极（8））的FET晶体管连接到地。

14. 发明申请

US20050111587A1 Demodulator and receiver using same 审中-公开
标题翻译：解调器和接收器使用相同
公开(公告)号：US20050111587A1
公开(公告)日：2005-05-26
申请号：US10473417
申请日：2001-11-30
申请人： Masayoshi Abe , Noboru Sasho , Dragan Krupezevic , Veselin Brankovic , Mohamed Ratni
发明人： Masayoshi Abe , Noboru Sasho , Dragan Krupezevic , Veselin Brankovic , Mohamed Ratni
IPC分类号： H03D3/00 , H04B1/30 , H04L27/14
CPC分类号： H03D3/007 , H04B1/30
摘要： A high performance demodulator able to realize a further wide band property, low distortion characteristics, and low power consumption in comparison with a conventional multi-port demodulator and having a small fluctuation in characteristics with respect to temperature fluctuations and aging and comprising a five-port junction circuit 101 receiving a received signal Sr and a local signal Slo generated at a local signal generation circuit 102, generating three signals having a phase difference, detecting signal levels (amplitude components) of these signals to obtain three power detection signals (baseband signals) P1, P2, and P3; a first multiplier 103 for multiplying the power detection signal P1 output from a first power detector of the five-port junction circuit 101 by a coefficient A1 (=(κ21/κ11)2) for canceling square components of an interference signal and a local signal; a second multiplier 104 for multiplying the power detection signal P1 output from the first power detector by a coefficient A2 (=(κ31/κ11)2) for canceling square components of an interference signal and a local signal; a first subtractor 105 for subtracting a multiplication result of the first multiplier 103 from the power detection signal P2 output from a second power detector of the five-port junction circuit 101; a second subtractor 106 for subtracting the multiplication result of the second multiplier 104 from the power detection signal P3 output from a third power detector of the five-port junction circuit 101; and a multi-port signal-to-IQ signal conversion circuit 109 for converting the result to an In-phase signal I and a quadrature signal Q as demodulated signals based on the output signals of the first subtractor 105 and the second subtractor 106.
摘要翻译：与传统的多端口解调器相比，能够实现更宽带特性，低失真特性和低功耗的高性能解调器，并且相对于温度波动和老化具有小的特性波动，并且包括五端口接收接收信号Sr和在本地信号发生电路102产生的本地信号Slo，产生具有相位差的三个信号，检测这些信号的信号电平（振幅分量）以获得三个功率检测信号（基带信号） P 1，P 2和P 3; 第一乘法器103，用于将从五端口电路101的第一功率检测器输出的功率检测信号P 1乘以系数A 1（=（kappa 21 / kappa＆lt; / SUB>）^{2），用于消除干扰信号和本地信号的平方分量; 第二乘法器104，用于将从第一功率检测器输出的功率检测信号P 1乘以系数A 2（=（kappa 31 / kappa）11）），用于消除干扰信号和本地信号的平方分量; 第一减法器105，用于从从五端口电路101的第二功率检测器输出的功率检测信号P 2中减去第一乘法器103的相乘结果; 第二减法器106，用于从从五端口电路101的第三功率检测器输出的功率检测信号P 3中减去第二乘法器104的相乘结果; 以及用于将结果转换为基于第一减法器105和第二减法器106的输出信号的解调信号的同相信号I和正交信号Q的多端口信号到IQ信号转换电路109。}

15. 发明授权

US06710716B1 Power detecting circuit and demodulator comprising the same 失效
标题翻译：功率检测器和解调器使用相同
公开(公告)号：US06710716B1
公开(公告)日：2004-03-23
申请号：US10048538
申请日：2002-01-31
申请人： Masayoshi Abe , Noboru Sasho , Dragan Krupezevic , Veselin Brankovic
发明人： Masayoshi Abe , Noboru Sasho , Dragan Krupezevic , Veselin Brankovic
IPC分类号： G08B2100
CPC分类号： H03D1/18
摘要： A high performance power detector not only suited for monolithic structures, small in size, low in cost, and suitabed for broadband high frequency operations, but also excellent in the linearity of the detection characteristic, having a small fluctuation of detection characteristic relative to the bias fluctuation, having a small fluctuation of detection characteristic relative to the FET threshold voltage fluctuation, and in addition having a small DC offset wherein an additional circuit is unnecessary even if the latter stage circuit has a balance input, and a demodulator using the same.
摘要翻译：高性能功率检测器不仅适用于单块结构，尺寸小，成本低，适用于宽带高频操作，而且具有优异的检测特性线性度，相对于偏置具有较小的检测特性波动波动，相对于FET阈值电压波动具有小的检测特性波动，并且另外具有小的DC偏移，其中即使后级电路具有平衡输入也不需要附加电路，以及使用该偏移的解调器。

16. 发明授权

US07260156B2 Modulation identification device 失效
标题翻译：调制识别装置
公开(公告)号：US07260156B2
公开(公告)日：2007-08-21
申请号：US09892919
申请日：2001-06-26
申请人： Dragan Krupezevic , Robert Morelos Zaragoza , Veselin Brankovic , Mohamed Ratni
发明人： Dragan Krupezevic , Robert Morelos Zaragoza , Veselin Brankovic , Mohamed Ratni
IPC分类号： H04L27/04 , H04L27/12 , H04L27/20
CPC分类号： H04L27/18 , H04B1/16 , H04L27/0012 , H04L27/34
摘要： A modulation identification device can be used for detecting the modulation type of a wirelessly transmitted and modulated RF signal without a-priori information on the kind of modulation used. The modulation identification device (1) comprises a n-port junction (17), n being an integer equal to or larger than three. The n-port junction (17) is supplied with the modulated RF signal (2) and a second RF signal (3) from a local oscillator. The n-port junction (17) outputs at least one third RF signal to at least one power detector (18). A signal processing unit (6) processes the power detected output of the n-port junction (17) to generate at least one flag (10) indicating the identified modulation type.
摘要翻译：可以使用调制识别装置来检测无线发射和调制的RF信号的调制类型，而不需要使用的调制类型的先验信息。调制识别装置（1）包括n端口（17），n是等于或大于3的整数。 n端口结（17）从本地振荡器提供经调制的RF信号（2）和第二RF信号（3）。 n端口结（17）将至少一个第三RF信号输出到至少一个功率检测器（18）。信号处理单元（6）处理n端口结（17）的功率检测输出以产生指示所识别的调制类型的至少一个标志（10）。

17. 发明授权

US06507321B2 V-slot antenna for circular polarization 失效
标题翻译：用于圆极化的V型槽天线
公开(公告)号：US06507321B2
公开(公告)日：2003-01-14
申请号：US09866200
申请日：2001-05-25
申请人： Gerald Oberschmidt , Veselin Brankovic , Dragan Krupezevic
发明人： Gerald Oberschmidt , Veselin Brankovic , Dragan Krupezevic
IPC分类号： H01Q1310
CPC分类号： H01Q13/106 , H01Q13/16
摘要： The present invention relates to a circular polarized antenna comprising a planar dielectric substrate comprising a front and a back dielectric face, at least one subantenna means comprising a first and second element for radiating and receiving circular polarized electromagnetic signals, at least one transmission line means for transmitting signals from and to said at least one subantenna means, wherein the antenna is characterized in that the first and second elements of the subantenna means are slots arranged orthogonal to each other in a V-shape on the front dielectric face of the substrate and in that the transmission line means are arranged on the back dielectric face of the substrate. This structure provides a simple configuration which can be produced at low costs and is suitable for the use in a planar array antenna, in particular due to the decoupling of the feed system from the radiating element.
摘要翻译：圆极化天线技术领域本发明涉及一种包括平面电介质基片的圆极化天线，该平面电介质基片包括前和后电介质面，至少一个子天线装置，包括用于辐射和接收圆偏振电磁信号的第一和第二元件，至少一个传输线装置，从所述至少一个子天线装置发送信号，其中所述天线的特征在于，所述子天线装置的所述第一和第二元件是在所述基板的前绝缘面上以V形彼此正交布置的槽，传输线装置布置在基板的背面电介质面上。这种结构提供了可以以低成本生产并且适合于在平面阵列天线中使用的简单配置，特别是由于馈送系统与辐射元件的分离。

18. 发明授权

US07092687B2 Five-port topology for direct down-conversion 失效
标题翻译：用于直接下转换的五端口拓扑
公开(公告)号：US07092687B2
公开(公告)日：2006-08-15
申请号：US10346800
申请日：2003-01-17
申请人： Dragan Krupezevic , Mohamed Ratni , Veselin Brankovic
发明人： Dragan Krupezevic , Mohamed Ratni , Veselin Brankovic
IPC分类号： H04B17/02 , H04B1/18 , H04B1/26
CPC分类号： H04B1/30
摘要： An apparatus for a direct down-conversion of modulated RF signals, the device including: a first power detector connected between an input port for the modulated RF signal and ground, which outputs a first DC signal, a second power detector connected between an input port for a local oscillator signal and ground, which outputs a second DC signal, the local oscillator signal having the same center frequency as the modulated RF signal, and a third power detector connected between the input port for the modulated RF signal and the input port for the local oscillator signal, which outputs a third DC signal.
摘要翻译：一种用于调制RF信号的直接下变频的装置，该装置包括：第一功率检测器，其连接在用于调制的RF信号的输入端口和地之间，其输出第一DC信号;第二功率检测器，连接在输入端口对于本地振荡器信号和接地，其输出第二DC信号，本地振荡器信号具有与调制的RF信号相同的中心频率，以及第三功率检测器，连接在用于调制的RF信号的输入端口和用于本地振荡器信号，其输出第三DC信号。

19. 发明授权

US06573872B2 Dual-spiral-slot antenna for circular polarization 失效
标题翻译：用于圆极化的双螺旋槽天线
公开(公告)号：US06573872B2
公开(公告)日：2003-06-03
申请号：US09866271
申请日：2001-05-25
申请人： Gerald Oberschmidt , Veselin Brankovic , Dragan Krupezevic
发明人： Gerald Oberschmidt , Veselin Brankovic , Dragan Krupezevic
IPC分类号： H01Q1310
CPC分类号： H01Q13/16 , H01Q9/27 , H01Q13/106
摘要： The present invention relates to an antenna comprising a planar dielectric substrate (1) comprising a front (5) and a back dielectric face (6), at least one subantenna means comprising a first (2) and second (3) element for radiating and receiving circular polarized electromagnetic signals, at least one transmission line means (4) for transmitting signals from and to said at least one subantenna means, characterized in that the first (2) and second (3) elements of the subantenna means are slots (2, 3) of a spiral shape and are connected to each other to form a double spiral (9) slot with both spirals (2, 3) having the same sense of rotation, the subantenna means being arranged on the front dielectric face (5) of the substrate and the transmission line (4) means being arranged on the back dielectric faces (6) of the substrate (1). This structure provides a simple configuration which can be produced at low costs and is suitable for the use in a planar array antenna, in particular due to the decoupling of the feed system from the radiating elements.
摘要翻译：本发明涉及一种包括平面电介质基片（1）的天线，其包括前面（5）和背面电介质面（6），至少一个副天线装置包括用于辐射的第一和第二（3）元件，接收圆偏振电磁信号，至少一个传输线装置（4），用于从所述至少一个子天线装置传送信号和所述至少一个子天线装置，其特征在于，子天线装置的第一（2）和第二（3）个元件是时隙，3）并且彼此连接以形成具有相同旋转感的两个螺旋（2,3）的双螺旋（9）槽，所述副天线装置布置在所述前介电面（5）上，的基板和传输线（4）的装置被布置在基板（1）的背面电介质面（6）上。这种结构提供了可以以低成本生产并且适合于在平面阵列天线中使用的简单配置，特别是由于馈电系统与辐射元件的分离。

20. 发明授权

US07142812B1 Wireless transmission system 有权
标题翻译：无线传输系统
公开(公告)号：US07142812B1
公开(公告)日：2006-11-28
申请号：US09593178
申请日：2000-06-13
申请人： Veselin Brankovic , Dragan Krupezevic , Mohamed Ratni , Hamid Amir-Alikhani , Kenichi Kawasaki , Kazuji Sasaki , Keiji Fukuzawa
发明人： Veselin Brankovic , Dragan Krupezevic , Mohamed Ratni , Hamid Amir-Alikhani , Kenichi Kawasaki , Kazuji Sasaki , Keiji Fukuzawa
IPC分类号： H04B7/00
CPC分类号： H04W4/00 , H01Q1/007 , H01Q1/2291 , H04W16/24 , H04W84/10 , H04W88/02 , H04W88/14
摘要： A wireless transmission system operating in a 60 GHz frequency range comprises fixed hubs (public download server) (2) and mobile terminals (1). The fixed hubs (2) have antennas (4) with a wide angle beam shape. The mobile terminals (1) have antennas (3) with a narrow angle beam shape. The fixed hubs (public download server) (2) are connected by means of a connection line (5) to an information source such as a network backbone or a main server.
摘要翻译：在60GHz频率范围内工作的无线传输系统包括固定集线器（公共下载服务器）（2）和移动终端（1）。固定轮毂（2）具有广角束形状的天线（4）。移动终端（1）具有窄角度波束形状的天线（3）。固定集线器（公共下载服务器）（2）通过连接线（5）连接到诸如网络主干或主服务器的信息源。

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