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1. 发明授权

US11949394B2 Phase shifter and antenna device 有权
公开(公告)号：US11949394B2
公开(公告)日：2024-04-02
申请号：US17846969
申请日：2022-06-22
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Wataru Yamamoto , Koji Tsutsumi , Masaomi Tsuru
IPC分类号： H01Q3/36 , H03H11/20
CPC分类号： H03H11/20 , H01Q3/36
摘要： A first phase shift circuit amplifies, when a first signal, a second signal having a phase difference of 90 degrees from the first signal, a third signal having a phase difference of 180 degrees from the first signal, and a fourth signal having a phase difference of 270 degrees from the first signal are output from a 90-degree distributor that distributes an input signal, each of any three signals from among the first signal to the fourth signal. A second phase shift circuit amplifies each of any two signals of any three signals and one signal that is not amplified by the first phase shift circuit from among the first signal to the fourth signal. One or more phase shift circuits of the first phase shift circuit and the second phase shift circuit each include a compensation circuit that compensates for a phase error of the synthesized signal.

2. 发明授权

US11929723B2 Phase-variable frequency multiplier and antenna device 有权
公开(公告)号：US11929723B2
公开(公告)日：2024-03-12
申请号：US17405109
申请日：2021-08-18
申请人： Mitsubishi Electric Corporation
发明人： Wataru Yamamoto , Koji Tsutsumi , Sho Ikeda , Masaomi Tsuru
IPC分类号： H03H11/20 , H01Q3/36
CPC分类号： H03H11/20 , H01Q3/36
摘要： A phase-variable frequency multiplier includes: a 90-degree divider for dividing an input signal into an I-signal and a Q-signal; an amplitude setting circuit for distributing each of the I-signal and the Q-signal to two paths, setting amplitudes of two of four signals including the two distributed I-signals and the two distributed Q-signals depending on a phase shift amount of the input signal, and outputting as set signals, the four signals including the signals with the set amplitudes; a first mixer for multiplying one of the two I-signals included in the set signals by one of the two Q-signals included in the set signals to generate a first signal having a frequency being twice the frequency of the input signal; a second mixer for multiplying the other of the two I-signals included in the set signals by the other of the two Q-signals included in the set signals to generate a second signal with an amplitude ratio with respect to the first signal, being a tangent or a reciprocal of a tangent of the phase shift amount and with a frequency being twice the frequency of the input signal; and a 90-degree combiner for applying a phase difference of 90 degrees between the first signal and the second signal, and combining the first signal having the phase difference of 90 degrees from the second signal with the second signal.

3. 发明授权

US10512153B2 High frequency circuit 有权
公开(公告)号：US10512153B2
公开(公告)日：2019-12-17
申请号：US16091467
申请日：2016-04-27
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Hidenori Ishibashi , Kiyoshi Ishida , Eigo Kuwata , Yukinobu Tarui , Hideharu Yoshioka , Hiroyuki Aoyama , Masaomi Tsuru
IPC分类号： H05K1/02 , H01L23/66 , H05K1/18
摘要： A printed wiring board includes conductor layers, a core layer having an opening, and a build-up layer. A high frequency device placed within the opening is installed such that a mirror surface is thermally connected to a conductor layer for heat dissipation facing the opening from a lower surface side of the core layer, and terminals on the terminal surface are electrically connected to conductor layers formed on an upper surface side of the core layer.

4. 发明授权

US11277036B2 Rectenna controller and rectenna apparatus including the same 有权
公开(公告)号：US11277036B2
公开(公告)日：2022-03-15
申请号：US15734231
申请日：2019-02-27
申请人： Mitsubishi Electric Corporation
发明人： Takayuki Morioka , Yasutoshi Yashiki , Hidetada Tokioka , Toshiyuki Tanaka , Yukihiro Homma , Maho Utsumi , Masaomi Tsuru
IPC分类号： H02J17/00 , H02J50/27 , H02H9/04 , H02M3/155
摘要： A rectenna controller connected to a rectenna that receives radio frequency power and converts the radio frequency power into direct current power, the rectenna controller controlling the direct current power received from the rectenna and supplying the controlled direct current power to a load, the rectenna controller including: an input terminal receiving the direct current power converted by the rectenna; an output terminal supplying the controlled direct current power to the load; a first switching element disposed in a current path connecting the input terminal to the output terminal; and a controller controlling the first switching element, wherein when the controller does not operate, the first switching element becomes conducting to render the current path conductive.

5. 发明授权

US11245166B2 High frequency mixer 有权
公开(公告)号：US11245166B2
公开(公告)日：2022-02-08
申请号：US16608764
申请日：2017-05-29
申请人： Mitsubishi Electric Corporation
发明人： Masaomi Tsuru
IPC分类号： H01P1/185 , H01P5/18 , H03D7/02 , H01P1/213
摘要： A first phase shift circuit (2) converts impedance to achieve impedance matching between a third terminal (1c) of a 90-degree hybrid circuit (1) and a first terminal (4a) of a first nonlinear element (4), and shifts a phase of a radio wave by 180 degrees, and a second phase shift circuit (3) converts impedance to achieve impedance matching between a fourth terminal (1d) of the 90-degree hybrid circuit (1) and a first terminal (5a) of a second nonlinear element (5), and shifts a phase of a radio wave by 90 degrees. As a result of this configuration, a conversion loss of radio waves can be reduced.

6. 发明授权

US10848009B2 Rectifier and rectenna device 有权
公开(公告)号：US10848009B2
公开(公告)日：2020-11-24
申请号：US16649907
申请日：2018-08-29
申请人： Mitsubishi Electric Corporation
发明人： Toshiyuki Tanaka , Jun Shimokawatoko , Masaomi Tsuru , Atsushi Yamamoto , Yukihiro Homma
IPC分类号： H02J50/27 , H01Q1/24 , H02M7/217
CPC分类号： H02J50/27 , H01Q1/248 , H02M7/2176
摘要： The rectifying device converts high-frequency power input from an input terminal into direct current power and outputs the direct current power from an output terminal. The rectifying device includes a rectifier that converts the high-frequency power into the direct current power, and an impedance changer having one end connected to a connection point of the rectifier and the output terminal and the other end to which reference voltage is applied such that impedance varies while having a negative correlation with respect to an absolute value of voltage of the direct current power. When the absolute value of the voltage of the direct current power is greater than a predetermined value that is lower than reverse withstand voltage of the rectifying element included in the rectifier, the impedance of the impedance changer as viewed from the rectifier is a value regarded as corresponding to a short circuit.

7. 发明授权

US11929539B2 Directional coupler and semiconductor chip 有权
公开(公告)号：US11929539B2
公开(公告)日：2024-03-12
申请号：US17378863
申请日：2021-07-19
申请人： Mitsubishi Electric Corporation
发明人： Takanobu Fujiwara , Tatsuya Hagiwara , Masaomi Tsuru
IPC分类号： H03F3/45 , H01P5/18 , H03F3/16
CPC分类号： H01P5/18 , H03F3/16
摘要： A directional coupler is configured so as to include: a resistive element in which one end thereof is connected to a first terminal and the other end is connected to a second terminal; a first amplifier circuit for outputting either a current directly proportional to a first voltage applied to the one end of the resistive element or a current directly proportional to a second voltage applied to the other end of the resistive element; a second amplifier circuit for outputting a first current which is directly proportional to the voltage difference between the first voltage applied to the one end of the resistive element and the second voltage applied to the other end of the resistive element and whose polarity is different from that of the current outputted from the first amplifier circuit when a signal is flowing from the first terminal to the second terminal, and for outputting a second current which is directly proportional to the voltage difference between the first voltage and the second voltage and whose polarity is identical to that of the current outputted from the first amplifier circuit when a signal is flowing from the second terminal to the first terminal; and a first adder circuit for outputting either a signal having a voltage value directly proportional to a current which is the sum total of the current outputted from the first amplifier circuit and the first current or a signal having a voltage value directly proportional to a current which is the sum total of the current outputted from the first amplifier circuit and the second current to a third terminal.

8. 发明授权

US11879917B2 Phase detector 有权
公开(公告)号：US11879917B2
公开(公告)日：2024-01-23
申请号：US17554464
申请日：2021-12-17
申请人： Mitsubishi Electric Corporation
发明人： Akihito Hirai , Masaomi Tsuru
IPC分类号： G01R25/00 , H03H11/16 , H03H11/04
CPC分类号： G01R25/00 , H03H11/04 , H03H11/16
摘要： A phase detector includes: a phase shift circuit to phase-shift a first positive-phase signal included in a first differential signal and a first negative-phase signal included in the first differential signal, and phase-shift a second positive-phase signal included in a second differential signal and a second negative-phase signal included in the second differential signal; a multiplication circuit to perform multiplication of two signals for all combinations of the first positive-phase signal and the first negative-phase signal with the phase-shifted second positive-phase signal and the phase-shifted second negative-phase signal, and perform multiplication of two signals for all combinations of the phase-shifted first positive-phase signal and the phase-shifted first negative-phase signal with the second positive-phase signal and the second negative-phase signal; and a phase difference calculating circuit to calculate a phase difference between the first differential signal and the second differential signal using multiplication signals of the multiplication circuit.

9. 发明授权

US11757454B2 Delay synchronization circuit, clock transmission circuit, and clock transmission and reception circuit 有权
公开(公告)号：US11757454B2
公开(公告)日：2023-09-12
申请号：US17948993
申请日：2022-09-20
申请人： Mitsubishi Electric Corporation
发明人： Sho Ikeda , Koji Tsutsumi , Masaomi Tsuru
IPC分类号： H03L7/081
CPC分类号： H03L7/081
摘要： A delay synchronization circuit includes a pulse synthesizing circuit to generate a synthesized signal including a first pulse signal synchronized with a reference signal and a second pulse signal synchronized a feedback signal, a VCDL to delay the synthesized signal g and output a delayed synthesized signal, a pulse separation circuit to generate a first separation signal synchronized with a first pulse signal included in the delayed synthesized signal and generate a second separation signal synchronized with a second pulse signal included in the delayed synthesized signal, a circulator to output a first separation signal to a clock reception circuit and then output the first separation signal returned from the clock reception circuit to the pulse synthesizing circuit as the feedback signal, and a delay-amount control circuit to control a delay amount of the delayed synthesized signal according to a phase difference between the reference signal and the second separation signal.

10. 发明授权

US11171657B2 Phase and amplitude controlled oscillation device 有权
公开(公告)号：US11171657B2
公开(公告)日：2021-11-09
申请号：US17109513
申请日：2020-12-02
申请人： Mitsubishi Electric Corporation
发明人： Masaomi Tsuru
IPC分类号： H03L7/099 , H03K5/26 , H03L7/093 , H03L7/23 , H03L7/24 , H03L7/197 , H03C5/00
摘要： A phase and amplitude controlled oscillation device is configured in such a manner that a first controller and a second controller control a phase of a combined output wave obtained by a combiner by performing control to shift phases of respective oscillation frequencies of a first oscillator and a second oscillator in the same direction, and control an amplitude of the combined output wave obtained by the combiner by performing control to shift the phases of the respective oscillation frequencies of the first oscillator and the second oscillator in opposite directions.

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