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公开(公告)号：US20110151800A1
公开(公告)日：2011-06-23
申请号：US12643529
申请日：2009-12-21
申请人： Wael A. Al-Qaq , Zhihang Zhang , Nikolaus Klemmer
发明人： Wael A. Al-Qaq , Zhihang Zhang , Nikolaus Klemmer
IPC分类号： H04B17/00
CPC分类号： H04B17/10
摘要： Phase and gain of a transmit signal are measured at a transmitter by determining a first time delay having a first resolution at a measurement receiver between a reference signal from which the transmit signal is generated and a measured signal derived from the transmit signal by comparing amplitudes of the reference signal and the measured signal. A second time delay having a second resolution finer than the first resolution is determined at the measurement receiver between the reference signal and the measured signal based on the first time delay. The reference signal and the measured signal are time aligned at the measurement receiver based on the second time delay and the phase and gain of the transmit signal are estimated after the reference signal and the measured signal are time aligned.
摘要翻译： 发射信号的相位和增益通过在测量接收机处确定具有第一分辨率的第一时间延迟来测量，所述第一时间延迟在产生发射信号的参考信号与从发射信号导出的测量信号之间， 参考信号和测量信号。 基于第一时间延迟，在参考信号和测量信号之间的测量接收器处确定具有比第一分辨率更精细的第二分辨率的第二时间延迟。 参考信号和测量信号基于第二时间延迟在测量接收机处进行时间对准，并且在参考信号和测量信号被时间对准之后估计发射信号的相位和增益。
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公开(公告)号：US08131224B2
公开(公告)日：2012-03-06
申请号：US12643529
申请日：2009-12-21
申请人： Wael A. Al-Qaq , Zhihang Zhang , Nikolaus Klemmer
发明人： Wael A. Al-Qaq , Zhihang Zhang , Nikolaus Klemmer
IPC分类号： H04B17/00
CPC分类号： H04B17/10
摘要： Phase and gain of a transmit signal are measured at a transmitter by determining a first time delay having a first resolution at a measurement receiver between a reference signal from which the transmit signal is generated and a measured signal derived from the transmit signal by comparing amplitudes of the reference signal and the measured signal. A second time delay having a second resolution finer than the first resolution is determined at the measurement receiver between the reference signal and the measured signal based on the first time delay. The reference signal and the measured signal are time aligned at the measurement receiver based on the second time delay and the phase and gain of the transmit signal are estimated after the reference signal and the measured signal are time aligned.
摘要翻译： 发射信号的相位和增益通过在测量接收机处确定具有第一分辨率的第一时间延迟来测量，所述第一时间延迟在产生发射信号的参考信号与从发射信号导出的测量信号之间， 参考信号和测量信号。 基于第一时间延迟，在参考信号和测量信号之间的测量接收器处确定具有比第一分辨率更精细的第二分辨率的第二时间延迟。 参考信号和测量信号基于第二时间延迟在测量接收机处进行时间对准，并且在参考信号和测量信号被时间对准之后估计发射信号的相位和增益。
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公开(公告)号：US5990766A
公开(公告)日：1999-11-23
申请号：US883805
申请日：1997-06-27
申请人： Zhihang Zhang , Attila Weiser, Jr.
发明人： Zhihang Zhang , Attila Weiser, Jr.
CPC分类号： H01P7/10 , H01P1/20336 , H01P1/20381 , H01P1/2039 , H01P7/06 , H01P7/082 , H01P7/088 , Y10S505/701 , Y10S505/866
摘要： The tunable filters of the present invention incorporate tunable dielectric materials (e.g., bulk and thin film ferroelectric and paraelectric materials) in contact with segments of resonators that are at an RF voltage maximum to alter the pass band or stop band characteristic of an RF signal outputted by the filter. The biasing circuitry in contact with the tunable dielectric material can include components for inhibiting or retarding the coupling of RF energy to the biasing circuit.
摘要翻译： 本发明的可调谐滤波器包括与处于RF电压最大的谐振器段接触的可调电介质材料（例如，体和薄膜铁电和顺电材料），以改变输出的RF信号的通带或阻带特性 通过过滤器。 与可调电介质材料接触的偏置电路可以包括用于抑制或延迟RF能量耦合到偏置电路的组件。
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4.发明授权Superconductive planar radio frequency filter having resonators with folded legs 失效具有折叠腿的谐振器的超导平面射频滤波器
公开(公告)号：US6122533A
公开(公告)日：2000-09-19
申请号：US883800
申请日：1997-06-27
CPC分类号： H01P1/20372 , H01P1/20381 , Y10S505/70 , Y10S505/701 , Y10S505/866
摘要： A planar filter for performing signal filtering at radio frequencies is provided. The planar filter can include asymmetrical resonators, wherein each resonator is asymmetrical about a longitudinal center axis through the resonator. In addition, the resonators can be grouped in coupled pairs such that the resonators in each coupled pair are asymmetrical about a longitudinal center axis between the paired resonators. In addition, a coupling structure is provided that includes both distributed coupling and tapped coupling to a resonator. Further, a bandstop filter device is provided that includes coupling between resonators in the filter.
摘要翻译： 提供了一种用于在射频进行信号滤波的平面滤波器。 平面滤波器可以包括不对称谐振器，其中每个谐振器围绕通过谐振器的纵向中心轴线是不对称的。 此外，谐振器可以分组成耦合对，使得每个耦合对中的谐振器关于成对的谐振器之间的纵向中心轴线是不对称的。 此外，提供了一种耦合结构，其包括分布耦合和谐振器的抽头耦合。 此外，提供了一种带阻滤波器装置，其包括滤波器中的谐振器之间的耦合。
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公开(公告)号：USD1045541S1
公开(公告)日：2024-10-08
申请号：US29923733
申请日：2024-01-02
申请人： Zhihang Zhang
设计人： Zhihang Zhang
摘要： FIG. 1 is a first perspective view of a bamboo cheese board showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines shown in the drawings depict portions of the bamboo cheese board that form no part of the claimed design.-
公开(公告)号：US11819123B2
公开(公告)日：2023-11-21
申请号：US18080791
申请日：2022-12-14
申请人： Zhihang Zhang
发明人： Zhihang Zhang
CPC分类号： A47B37/04 , A47B3/10 , A47B3/12 , A47B2220/0069 , A47B2220/0088
摘要： The present disclosure discloses a multifunctional picnic table with dinner plates, including a left table board and a right table board which are hinged with each other; at least two detachable first table legs and detachable second table legs are mounted on upper and lower end surfaces of both the left table board and the right table board; the first table legs and the second table legs can be spliced end to end and extend; at least one first groove is formed in the upper end surfaces of the left table board and the right table board; and chopping board surfaces are arranged on the lower end surfaces of the left table board and the right table board.
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公开(公告)号：USD1045542S1
公开(公告)日：2024-10-08
申请号：US29923734
申请日：2024-01-02
申请人： Zhihang Zhang
设计人： Zhihang Zhang
摘要： FIG. 1 is a first perspective view of a cheese board showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is a perspective view of another state of the cheese board thereof;
FIG. 10 is an enlarged view of the selected portion 10 in FIG. 1; and,
FIG. 11 is an enlarged view of the selected portion 11 in FIG. 1.
The broken lines shown in the drawings depict portions of the cheese board that form no part of the claimed design.-
公开(公告)号：US6097263A
公开(公告)日：2000-08-01
申请号：US884362
申请日：1997-06-27
申请人： Carl H. Mueller , Zhihang Zhang , Gerhard A. Koepf
发明人： Carl H. Mueller , Zhihang Zhang , Gerhard A. Koepf
CPC分类号： H01P7/10 , H01P1/20336 , H01P1/20381 , H01P1/2039 , H01P7/06 , H01P7/082 , H01P7/088 , Y10S505/701 , Y10S505/866
摘要： The present invention provides an electronically tunable resonating apparatus which uses a tunable dielectric material which is biased by an electric field to alter the resonant frequency in a resonating cavity. The electrodes which apply the electric field are connected to a variable voltage source. The electrodes can therefore apply a plurality of electric field strengths and provide a range of resonant frequencies in the resonating apparatus. The resonating apparatus is particularly useful for microwave and millimeterwave electromagnetic energy.
摘要翻译： 本发明提供了一种电子可调谐谐振装置，其使用由电场偏置以改变谐振腔中的谐振频率的可调电介质材料。 施加电场的电极连接到可变电压源。 因此，电极可以施加多个电场强度，并在谐振装置中提供一定范围的谐振频率。 谐振装置对于微波和毫米波电磁能特别有用。
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公开(公告)号：US20230110174A1
公开(公告)日：2023-04-13
申请号：US18080791
申请日：2022-12-14
申请人： Zhihang Zhang
发明人： Zhihang Zhang
摘要： The present disclosure discloses a multifunctional picnic table with dinner plates, including a left table board and a right table board which are hinged with each other; at least two detachable first table legs and detachable second table legs are mounted on upper and lower end surfaces of both the left table board and the right table board; the first table legs and the second table legs can be spliced end to end and extend; at least one first groove is formed in the upper end surfaces of the left table board and the right table board; and chopping board surfaces are arranged on the lower end surfaces of the left table board and the right table board.
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