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公开(公告)号：US20230184885A1
公开(公告)日：2023-06-15
申请号：US17547907
申请日：2021-12-10
发明人： Herbert Knapp , Hao Li
CPC分类号： G01S7/35 , G01S7/358 , H03F3/245 , G01S13/325 , H03F2200/451
摘要： A method of operating a monolithic microwave integrated circuit (MMIC) in a radar transmitter includes: sending a radio frequency (RF) signal to a power amplifier of the radar transmitter, where the power amplifier is controlled by a termination control signal, where when the termination control signal is de-asserted, the power amplifier is configured to pass the RF signal through the power amplifier for transmission by an RF antenna, where when the termination control signal is asserted, the power amplifier is configured to terminate the RF signal in the power amplifier; transmitting the RF signal by de-asserting the termination control signal; and after de-asserting the termination control signal, disabling transmission of the RF signal by: reducing a power of the RF signal; and asserting the termination control signal.
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公开(公告)号：US09941911B2
公开(公告)日：2018-04-10
申请号：US15609191
申请日：2017-05-31
发明人： Saverio Trotta , Herbert Knapp
CPC分类号： H04B1/0475 , H03D7/1433 , H03D7/1458 , H03D7/1491
摘要： A mixing stage includes a first modulation stage that receives an input signal from a first common node of the mixing stage, a first local oscillator input that receives a local oscillator signal, and a first modulation signal output adapted to provide a first modulated signal. A second modulation stage of the mixing stage includes a second input that receives a phase inverted representation of the input signal from a second common node of the mixing stage, a second local oscillator input that receives the local oscillator signal, and a second modulation signal output adapted to provide a second modulated signal. A current generation circuit provides a supply current to the first common node and to the second common node. A current control circuit is adapted to superimpose an offset current to the current of at least one node of the first common node and the second common node.
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公开(公告)号：US20170264323A1
公开(公告)日：2017-09-14
申请号：US15609191
申请日：2017-05-31
发明人： Saverio Trotta , Herbert Knapp
CPC分类号： H04B1/0475 , H03D7/1433 , H03D7/1458 , H03D7/1491
摘要： A mixing stage includes a first modulation stage that receives an input signal from a first common node of the mixing stage, a first local oscillator input that receives a local oscillator signal, and a first modulation signal output adapted to provide a first modulated signal. A second modulation stage of the mixing stage includes a second input that receives a phase inverted representation of the input signal from a second common node of the mixing stage, a second local oscillator input that receives the local oscillator signal, and a second modulation signal output adapted to provide a second modulated signal. A current generation circuit provides a supply current to the first common node and to the second common node. A current control circuit is adapted to superimpose an offset current to the current of at least one node of the first common node and the second common node.
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公开(公告)号：US10466339B2
公开(公告)日：2019-11-05
申请号：US16186938
申请日：2018-11-12
发明人： Jonas Kammerer , Herbert Knapp , Hao Li
IPC分类号： G01S7/40 , G01R21/12 , H04B17/11 , G01R19/00 , G01R21/00 , H04B17/10 , H04B17/12 , H04B17/13 , H04B17/14
摘要： An on-chip power sensor and a millimeter-wave communication device (e.g. transmitter or transceiver) on a chip including the on-chip power sensor are described. The millimeter-wave communication device can also include a coupler disposed on a transmit path, the coupler being configured to receive a transmit signal and to provide the transmit signal to an antenna connection (e.g. pad). The on-chip power sensor can be configured to receive a coupled portion of the transmit signal from the coupler, and measure a transmit power of the transmit signal based on the coupled portion of the transmit signal.
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公开(公告)号：US20180156890A1
公开(公告)日：2018-06-07
申请号：US15887030
申请日：2018-02-02
发明人： Hao Li , Herbert Knapp
CPC分类号： G01S7/032 , G01S13/931
摘要： A cascaded radar sensor arrangement is disclosed. The arrangement includes a first buffer and a second buffer. The first buffer is within a first radar chip and includes a switch and is configured to mitigate a first leakage signal in the disabled mode. The second buffer is within a second radar chip and has a disabled mode. The second radar chip is cascaded with the first radar chip. A control unit is coupled to the first radar chip and the second radar chip and is configured to set the disabled mode for the first buffer.
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公开(公告)号：US09614626B2
公开(公告)日：2017-04-04
申请号：US14262727
申请日：2014-04-26
发明人： Herbert Knapp , Jonas Wursthorn
摘要： The present invention relates to a millimeter-wave transmitter on a chip comprising at least one transmit path coupleable to an oscillator, and an on-chip power sensor to measure at least a portion of a transmit power transmitted over the at least one transmit path. The present invention further relates to a method of calibrating a millimeter-wave transmitter on a chip and an on-chip power sensor coupleable to at least one transmit path of a millimeter-wave transmitter. The embodiments of the present invention provide a direct measure of transmit power provided within an individual one of the transmit paths of the millimeter-wave transmitter.
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公开(公告)号：US20160329972A1
公开(公告)日：2016-11-10
申请号：US15145485
申请日：2016-05-03
发明人： Karl DOMINIZI , Oliver Frank , Herbert Jaeger , Herbert Knapp , Hao Li , Florian Starzer , Rainer Stuhlberger , Jonas Wursthorn
CPC分类号： H04B17/0085 , H04B17/102 , H04B17/11 , H04B17/18 , H04B17/21
摘要： One exemplary embodiment of the present invention relates to a circuit that includes at least one RF signal path for an RF signal and at least one power sensor, which is coupled to the RF signal path and configured to generate a sensor signal representing the power of the RF signal during normal operation of the circuit. The circuit further includes a circuit node for receiving an RF test signal during calibration operation of the circuit. The circuit node is coupled to the at least one power sensor, so that the at least one power sensor receives the RF test signal additionally or alternatively to the RF signal and generates the sensor signal as representing the power of the RF test signal.
摘要翻译： 本发明的一个示例性实施例涉及一种电路，其包括用于RF信号的至少一个RF信号路径和至少一个功率传感器，其耦合到RF信号路径并被配置为产生代表 RF信号在电路正常工作期间。 电路还包括用于在电路的校准操作期间接收RF测试信号的电路节点。 所述电路节点耦合到所述至少一个功率传感器，使得所述至少一个功率传感器另外或替代于所述RF信号接收所述RF测试信号，并且生成所述传感器信号以表示所述RF测试信号的功率。
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公开(公告)号：US20150065071A1
公开(公告)日：2015-03-05
申请号：US14019028
申请日：2013-09-05
发明人： Saverio Trotta , Herbert Knapp
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03D7/1433 , H03D7/1458 , H03D7/1491
摘要： A mixing stage includes a first modulation stage that receives an input signal from a first common node of the mixing stage, a first local oscillator input that receives a local oscillator signal, and a first modulation signal output adapted to provide a first modulated signal. A second modulation stage of the mixing stage includes a second input that receives a phase inverted representation of the input signal from a second common node of the mixing stage, a second local oscillator input that receives the local oscillator signal, and a second modulation signal output adapted to provide a second modulated signal. A current generation circuit provides a supply current to the first common node and to the second common node. A current control circuit is adapted to superimpose an offset current to the current of at least one node of the first common node and the second common node.
摘要翻译： 混合级包括从混合级的第一公共节点接收输入信号的第一调制级，接收本地振荡器信号的第一本地振荡器输入和适于提供第一调制信号的第一调制信号输出。 混合级的第二调制级包括第二输入端，其接收来自混频级的第二公共节点的输入信号的相位反转表示，接收本机振荡器信号的第二本机振荡器输入端和第二调制信号输出端 适于提供第二调制信号。 电流产生电路向第一公共节点和第二公共节点提供电源电流。 电流控制电路适于将偏移电流叠加到第一公共节点和第二公共节点的至少一个节点的电流。
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公开(公告)号：US09496824B2
公开(公告)日：2016-11-15
申请号：US14861054
申请日：2015-09-22
发明人： Hao Li , Jidan Al-Eryani , Herbert Knapp
CPC分类号： H03B5/1256 , H01P3/081 , H03B5/12 , H03B5/1218 , H03B5/1243 , H03B5/1259 , H03B5/1296
摘要： The disclosure provides an oscillator circuit for a voltage controlled oscillator. The oscillator circuit includes first and second coupled transmission lines, wherein the oscillator circuit is configured to provide a variable load impedance at a first end of a signal line of the first transmission line such that a variable inductance is provided between first and second ends of a signal line of the second transmission line in dependence on the variable load impedance. The oscillator circuit is configured to adjust the variable inductance provided between the first and second ends of the signal line of the second transmission line by adjusting the variable load impedance provided at the first end of the signal line of the first transmission line, wherein the variable inductance provided between the first and second ends of the signal line of the second transmission line constitutes a frequency determining element of the oscillator circuit.
摘要翻译： 本公开提供了一种用于压控振荡器的振荡器电路。 振荡器电路包括第一和第二耦合传输线，其中振荡器电路被配置为在第一传输线的信号线的第一端处提供可变负载阻抗，使得可变电感被提供在第一和第二端之间 根据可变负载阻抗，第二传输线的信号线。 振荡器电路被配置为通过调节设置在第一传输线的信号线的第一端处的可变负载阻抗来调节设置在第二传输线的信号线的第一和第二端之间的可变电感，其中变量 设置在第二传输线的信号线的第一和第二端之间的电感构成振荡器电路的频率确定元件。
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10.发明申请公开(公告)号：US20160245898A1
公开(公告)日：2016-08-25
申请号：US14630754
申请日：2015-02-25
发明人： Hao Li , Herbert Knapp
IPC分类号： G01S7/03
CPC分类号： G01S7/032 , G01S13/931
摘要： A cascaded radar sensor arrangement is disclosed. The arrangement includes a first buffer and a second buffer. The first buffer is within a first radar chip and includes a switch and is configured to mitigate a first leakage signal in the disabled mode. The second buffer is within a second radar chip and has a disabled mode. The second radar chip is cascaded with the first radar chip. A control unit is coupled to the first radar chip and the second radar chip and is configured to set the disabled mode for the first buffer.
摘要翻译： 公开了级联雷达传感器装置。 该装置包括第一缓冲器和第二缓冲器。 第一缓冲器在第一雷达芯片内并且包括开关，并且被配置为在禁用模式下减轻第一泄漏信号。 第二个缓冲器位于第二个雷达芯片内，并具有禁用模式。 第二个雷达芯片与第一个雷达芯片级联。 控制单元耦合到第一雷达芯片和第二雷达芯片，并且被配置为设置用于第一缓冲器的禁用模式。
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