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公开(公告)号：US07286094B2
公开(公告)日：2007-10-23
申请号：US11007949
申请日：2004-12-09
申请人： Mohamed Ratni , Dragan Krupezevic
发明人： Mohamed Ratni , Dragan Krupezevic
IPC分类号： H01Q13/00
摘要： The present invention generally relates to the field of microwave antennas, and, more particularly, to a number of three-dimensional designs for the radiation element of an ultra-wideband monopole antenna with a symmetrical omni-directional radiation pattern operated in the frequency range between 3.1 GHz and 10.6 GHz. Said antenna is connected to the analog front-end circuitry of a wireless communication device used for transmitting and/or receiving microwave signals and meets the FCC requirements in terms of antenna gain, radiation pattern, polarization, frequency bandwidth, group delay, and size. It comprises a radiation element consisting of an air- and/or dielectric-filled cavity structure with a base plane and a radiator plane. A metallic ground plane having a relatively high surface impedance to electromagnetic waves within said frequency range, which is printed on a dielectric substrate, serves as a reflector. The monopole antenna further comprises an antenna feeding circuitry used for electronically steering the symmetrical omni-directional radiation pattern and a feeding line connecting the antenna feeding circuitry with the base plane of the radiation element. Thereby, parts of the analog front-end circuitry can optionally be placed within the air-filled part of the radiation element of the antenna.The proposed designs include a radiation element having the form of a truncated right circular cone, rotational-symmetric radiation elements with a convexly- or concavely-shaped 3D surface, respectively, a radiation element in the form of a truncated right regular pyramid with a square base plane, and radiation elements with a combined structure comprising a conical, pyramidal, convexly- or concavely-shaped first part and a closed cylindrical or cuboidal second part whose top plane is arranged on top of the congruent base plane of said first part. Further embodiments include radiation elements with the form of a radially notched cylinder or hemisphere as well as combined structures consisting of at least two convexly-shaped elements or two conical parts, respectively, stacked on top of each other.
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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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3.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：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：US20050156804A1
公开(公告)日：2005-07-21
申请号：US11007949
申请日：2004-12-09
申请人： Mohamed Ratni , Dragan Krupezevic
发明人： Mohamed Ratni , Dragan Krupezevic
摘要： The present invention generally relates to the field of microwave antennas, and, more particularly, to a number of three-dimensional designs for the radiation element of an ultra-wideband monopole antenna with a symmetrical omni-directional radiation pattern operated in the frequency range between 3.1 GHz and 10.6 GHz. Said antenna is connected to the analog front-end circuitry of a wireless communication device used for transmitting and/or receiving microwave signals and meets the FCC requirements in terms of antenna gain, radiation pattern, polarization, frequency bandwidth, group delay, and size. It comprises a radiation element consisting of an air- and/or dielectric-filled cavity structure with a base plane and a radiator plane. A metallic ground plane having a relatively high surface impedance to electromagnetic waves within said frequency range, which is printed on a dielectric substrate, serves as a reflector. The monopole antenna further comprises an antenna feeding circuitry used for electronically steering the symmetrical omni-directional radiation pattern and a feeding line connecting the antenna feeding circuitry with the base plane of the radiation element. Thereby, parts of the analog front-end circuitry can optionally be placed within the air-filled part of the radiation element of the antenna. The proposed designs include a radiation element having the form of a truncated right circular cone, rotational-symmetric radiation elements with a convexly- or concavely-shaped 3D surface, respectively, a radiation element in the form of a truncated right regular pyramid with a square base plane, and radiation elements with a combined structure comprising a conical, pyramidal, convexly- or concavely-shaped first part and a closed cylindrical or cuboidal second part whose top plane is arranged on top of the congruent base plane of said first part. Further embodiments include radiation elements with the form of a radially notched cylinder or hemisphere as well as combined structures consisting of at least two convexly-shaped elements or two conical parts, respectively, stacked on top of each other.
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公开(公告)号：US06803814B1
公开(公告)日：2004-10-12
申请号：US09502656
申请日：2000-02-11
申请人： Dragan Krupezevic , Veselin Brankovic , Gerald Oberschmidt , Masayoshi Abe , Tino Konschak , Thomas Dölle
发明人： Dragan Krupezevic , Veselin Brankovic , Gerald Oberschmidt , Masayoshi Abe , Tino Konschak , Thomas Dölle
IPC分类号： H03D300
摘要： A demodulator for modulated RF signals comprises a passive four port structure (1). The four port structure (1) has a first input (3) for supplying a modulated RF signal to be demodulated. A second input (2) is supplied with a RF signal from a local oscillator (21). Two output terminals are connected to power sensors (4, 5). The RF signal from the local oscillator (21) is supplied to the second input (3) of the four port structure (1) without being RF switched by an RF switch. The demodulator is particularly useful for modulation schemes with a finite number of magnitude states (nQAM modulation).
摘要翻译： 用于调制RF信号的解调器包括无源四端口结构（1）。 四端口结构（1）具有用于提供待解调的调制RF信号的第一输入端（3）。 第二输入（2）被提供有来自本地振荡器（21）的RF信号。 两个输出端子连接到功率传感器（4,5）。 来自本地振荡器（21）的RF信号被提供给四端口结构（1）的第二输入端（3），而不用RF开关进行RF切换。 解调器对于具有有限数量级的状态（nQAM调制）的调制方案特别有用。
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公开(公告)号：US06748203B1
公开(公告)日：2004-06-08
申请号：US09672643
申请日：2000-09-28
申请人： Veselin Brankovic , Dragan Krupezevic , Gerald Oberschmidt , Tino Konschak , Thomas Dölle , Hamid Amir-Alikhani , Masayoshi Abe
发明人： Veselin Brankovic , Dragan Krupezevic , Gerald Oberschmidt , Tino Konschak , Thomas Dölle , Hamid Amir-Alikhani , Masayoshi Abe
IPC分类号： H04B106
摘要： A three port structure for the down conversion demodulation of a digitally modulated RF signal is proposed, wherein no RF switches are provided. The three port structure (1) has a first input (2) for the RF signal to be down converted and a second input (3) for a RF signal originating from a local oscillator (8). An output (4) of the three port structure (1) is supplied to a power sensor unit (5). The RF signal from the local oscillator (8) is modulated (7) before it is supplied to the three port structure (1).
摘要翻译： 提出了一种用于数字调制RF信号的下变频解调的三端口结构，其中不提供RF开关。 三端口结构（1）具有用于RF信号被降频转换的第一输入端（2）和用于源自本地振荡器（8）的RF信号的第二输入端（3）。 三端口结构（1）的输出（4）被提供给功率传感器单元（5）。 来自本地振荡器（8）的RF信号在被提供给三端口结构（1）之前被调制（7）。
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公开(公告)号：US06539215B1
公开(公告)日：2003-03-25
申请号：US09578755
申请日：2000-05-25
IPC分类号： H04B126
CPC分类号： H04L27/2331 , H03D3/007 , H03D9/04 , H04B1/30
摘要： A down converter for RF signals comprises one three port junction (7) having one input port six for modulated digital RF signals and two output ports (8, 9). The output ports (8, 9) are respectively connected to a power sensor (10, 11). The three port junction (7) comprises a power splitter (16) dividing the signal supply to the input terminal (6) of the two branches, processing means (17, 18, 19, 21, 22, 23, 24) for processing one of the branches and a four port junction device (20) for combining the two branches and for generating two output signals to be supplied to the output terminals (8, 9) of the three port junction (7). The processing means can comprise a delay unit (18) or alternatively a frequency divider (21), a plurality of filters (22, 24) and a frequency multiplicator (23).
摘要翻译： 用于RF信号的下变频器包括一个三端口结（7），其具有用于调制的数字RF信号的一个输入端口6和两个输出端口（8,9）。 输出端口（8,9）分别连接到功率传感器（10,11）。 三端口（7）包括功率分配器（16），将信号源分配给两个分支的输入端（6），处理装置（17,18,19,21,22,23,24）用于处理一个 和用于组合两个分支并用于产生要提供给三端口（7）的输出端子（8,9）的两个输出信号的四端口连接装置（20）。 处理装置可以包括延迟单元（18）或可替代地分频器（21），多个滤波器（22,24）和频率倍增器（23）。
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公开(公告)号：US06507321B2
公开(公告)日：2003-01-14
申请号：US09866200
申请日：2001-05-25
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。
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10.发明申请公开(公告)号：US20150002166A1
公开(公告)日：2015-01-01
申请号：US14318323
申请日：2014-06-27
申请人： Dragan KRUPEZEVIC , Juergen MACK
发明人： Dragan KRUPEZEVIC , Juergen MACK
CPC分类号： G01V3/102
摘要： A method for detecting foreign objects in an induction charging device, with the aid of at least one control and/or regulating unit of the induction charging device, includes: ascertaining a resonance frequency; determining an actual quality at the resonance frequency; and comparing the actual quality to a setpoint quality which is a function of a resonance frequency.
摘要翻译： 一种用于通过所述感应充电装置的至少一个控制和/或调节单元来检测感应充电装置中的异物的方法，包括：确定谐振频率; 确定谐振频率下的实际质量; 并将实际质量与作为共振频率的函数的设定点质量进行比较。
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