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公开(公告)号：US07260156B2
公开(公告)日：2007-08-21
申请号：US09892919
申请日：2001-06-26
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）。
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2.发明授权I/Q demodulator device with three power detectors and two A/D converters 失效I / Q解调器具有三个功率检测器和两个A / D转换器公开(公告)号：US06999528B2
公开(公告)日：2006-02-14
申请号：US09947145
申请日：2001-09-05
CPC分类号： H03D1/2245 , H03D3/007 , H03D9/04 , H04B1/30
摘要： The present invention relates to a method and a device for the I/Q demodulation of modulated RF signals. The I/Q demodulator (60) has a first input for the RF signal (61) to be demodulated and a second input for a RF signal (62) originating from a local oscillator (20). The demodulator (60) combines the two RF signals (61,62) to generate three output signals supplied to three power detectors. In a combination unit (70) the three power signals of the power detectors are merged in two signal branches wherein after passing an A/D converting (72) and digital processing unit (73) one signal is the I component and the other one is the Q component of the received modulated RF signal (61).
摘要翻译： 本发明涉及用于调制RF信号的I / Q解调的方法和装置。 I / Q解调器（60）具有要被解调的RF信号（61）的第一输入和源自本地振荡器（20）的RF信号（62）的第二输入。 解调器（60）组合两个RF信号（61,62）以产生提供给三个功率检测器的三个输出信号。 在组合单元（70）中，功率检测器的三个功率信号被合并在两个信号分支中，其中在通过A / D转换（72）和数字处理单元（73）之后，一个信号是I分量，另一个是 所接收的调制RF信号（61）的Q分量。
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公开(公告)号：US20060284652A1
公开(公告)日：2006-12-21
申请号：US10493241
申请日：2001-10-31
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。
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公开(公告)号：US07039129B2
公开(公告)日：2006-05-02
申请号：US09901273
申请日：2001-07-09
IPC分类号： H44L27/16
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。
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公开(公告)号：US07092687B2
公开(公告)日：2006-08-15
申请号：US10346800
申请日：2003-01-17
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。
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公开(公告)号：US06683471B2
公开(公告)日：2004-01-27
申请号：US09938146
申请日：2001-08-22
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。
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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
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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公开(公告)号：US06940470B2
公开(公告)日：2005-09-06
申请号：US10381866
申请日：2001-07-31
IPC分类号： H01Q19/17 , H01Q1/38 , H01Q1/42 , H01Q9/16 , H01Q9/18 , H01Q15/18 , H01Q19/10 , H01Q21/00 , H01Q21/08 , H01Q9/28
CPC分类号： H01Q15/18 , H01Q1/38 , H01Q9/16 , H01Q19/106 , H01Q21/0075
摘要： An antenna device, comprising a dielectric substrate board (10), dipole means (16) formed on the substrate board (10), and reflector member (48, 70, 72) having first and second reflective surfaces which are aparallel to each other define a first angle between each other. A positional relationship between the substrate board (10) and the reflector member (48, 70, 72) is such that the substrate board (10) and a vertex of the first angle (α) substantially lie in the same plane and the first and second reflective surfaces lie on opposite sides of the plane, a second angle defined between the substrate board (10) and the first reflective surface being different from zero each. In this way, an antenna device suitable for use in a broad variety of applications is provided which allows easy modification of its antenna characteristics by adjusting the angle between the reflective surfaces and/or the angular position of the reflector member (48, 70, 72) with respect to the substrate board (10).
摘要翻译： 一种天线装置，包括电介质基板（10），形成在基板（10）上的偶极装置（16）和具有彼此平行的第一和第二反射表面的反射构件（48,70,72）， 彼此之间的第一个角度。 衬底板（10）和反射器构件（48,70,72）之间的位置关系使得衬底板（10）和第一角度（α）的顶点基本上位于同一平面中，并且第一和 第二反射表面位于平面的相对侧上，限定在基板（10）和第一反射表面之间的第二角度各自不同于零。 以这种方式，提供了适用于各种应用的天线装置，其允许通过调整反射表面之间的角度和/或反射器构件（48,70,72）的角度位置来容易地修改其天线特性 ）相对于衬底板（10）。
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公开(公告)号：US20050111587A1
公开(公告)日：2005-05-26
申请号：US10473417
申请日：2001-11-30
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。
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公开(公告)号：US06600913B1
公开(公告)日：2003-07-29
申请号：US09698574
申请日：2000-10-27
IPC分类号： H04B126
摘要： A two-port millimeter-wave demodulation device is particularly adapted for wireless 60 GHz transmission systems. The device for the downconversion and demodulation of a modulated RF signal does not comprise a mixing stage. The RF signal to be downconverted is supplied to a linear two-port device having a single power sensor connected to the output of the two-port device. The two-port device comprises a three-port junction having two inputs and one output connected to the power sensor. One input of the three-port junction is supplied to the RF signal and the other input of the three-port junction is supplied (without switching) with a further RF signal originating either from a local oscillator or with a signal derived from the RF signal to be downconverted. FIG. 2
摘要翻译： 双端口毫米波解调装置特别适用于无线60GHz传输系统。用于下变频和解调调制RF信号的装置不包括混频级。 将要下变频的RF信号提供给具有连接到双端口设备的输出的单个功率传感器的线性双端口设备。 双端口装置包括具有两个输入端和一个输出端连接到功率传感器的三端口结。 三端口的一个输入端被提供给RF信号，并且三端口结的另一个输入端被提供（不用切换），另外一个来自本地振荡器的RF信号或者从RF信号得到的信号 下转换。 2
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