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公开(公告)号：US11381112B2
公开(公告)日：2022-07-05
申请号：US16933784
申请日：2020-07-20
Applicant: California Institute of Technology
Inventor： Behrooz Abiri , Florian Bohn , Seyed Ali Hajimiri
Abstract: A power bank includes, in part, a rechargeable battery, a wireless power recovery unit adapted to receive power wirelessly, a battery charging circuit adapted to deliver the power recovered by the power recovery unit to the rechargeable battery, an output interface, and a voltage reconditioning circuit adapted to supply power from the rechargeable battery to the output interface for delivery to an external device. The wireless power recovery unit may include one or more of a multitude of photodiodes adapted to convert a coherent optical signal to electrical power, an acoustic transducer adapted to convert acoustic waves to an electrical power, an inductive coupling circuit adapted to convert time varying magnetic flux to electrical power, and an RF power recovery unit adapted to convert an RF signal to electrical power.
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公开(公告)号：US10673351B2
公开(公告)日：2020-06-02
申请号：US16004198
申请日：2018-06-08
Applicant: California Institute of Technology
Inventor： Seyed Ali Hajimiri , Behrooz Abiri , Florian Bohn
Abstract: A rectifying circuit includes, in part, first and second NMOS transistors, an impedance matching network, and an RF block circuit. The source and gate terminals of the first NMOS transistor respectively receive the ground potential and a biasing voltage. The second NMOS transistor has a gate terminal coupled to the drain terminal of the first NMOS transistor, a drain terminal coupled to the gate terminal of the first NMOS transistor, and a source terminal receiving the ground potential. The impedance matching network is disposed between the antenna and the drain terminals of the first and second NMOS transistors. The RF block circuit is coupled between the drain terminals of the first and second NMOS transistors and the output terminal of the rectifying circuit. The RF block circuit is adapted to prevent the RF signal from flowing into the output terminal of the rectifying circuit.
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公开(公告)号：US12136772B2
公开(公告)日：2024-11-05
申请号：US17683100
申请日：2022-02-28
Applicant: California Institute of Technology
Inventor： Austin C. Fikes , Behrooz Abiri , Florian Bohn , Seyed Ali Hajimiri , Christopher Ian Walker , David Elliot Williams
IPC: H01Q3/26
Abstract: A phased-array includes, in part, N transceivers each including a receiver and a transmitter, and a controller. The phased array is configured to transmit a first radio signal from a first element of the array during a first time period, receive the first radio signal from a second element of the array, recover a first value associated with the radio signal received by the second element, transmit a second radio signal from the second element of the array during a second time period, receive the second radio signal from the first element of the array, recover a second value associated with the radio signal received by the first element, and determine a first phase of a reference signal received by the second element from the recovered first and second values. The first phase is relative to a second phase of the reference signal received by the first element.
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公开(公告)号：US11264715B2
公开(公告)日：2022-03-01
申请号：US15997617
申请日：2018-06-04
Applicant: California Institute of Technology
Inventor： Austin Fikes , Behrooz Abiri , Florian Bohn , Seyed Ali Hajimiri , Christopher Ian Walker , David Elliot Williams
IPC: H01Q3/26
Abstract: A phased-array includes, in part, N transceivers each including a receiver and a transmitter, and a controller. The phased array is configured to transmit a first radio signal from a first element of the array during a first time period, receive the first radio signal from a second element of the array, recover a first value associated with the radio signal received by the second element, transmit a second radio signal from the second element of the array during a second time period, receive the second radio signal from the first element of the array, recover a second value associated with the radio signal received by the first element, and determine a first phase of a reference signal received by the second element from the recovered first and second values. The first phase is relative to a second phase of the reference signal received by the first element.
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公开(公告)号：US10720715B2
公开(公告)日：2020-07-21
申请号：US15897054
申请日：2018-02-14
Applicant: California Institute of Technology
Inventor： Behrooz Abiri , Seyed Ali Hajimiri , Florian Bohn
Abstract: A radiator is formed by forming a multitude of slot antennas adjacent one another such that the spacing between each pair of adjacent slot antennas is smaller than the wavelength of the signal being transmitted or received by the radiator. The radiator achieves high efficiency by reducing the excitation of substrate modes, and further achieves high output power radiation by combining power of multiple CMOS power amplifiers integrated in the radiator structure. Impedance matching to low-voltage CMOS power amplifiers is achieved through lowering the impedance at the radiator ports. Each output power stage may be implemented as a combination of several smaller output power stages operating in parallel, thereby allowing the combination to utilize an effective output device size commensurate with the impedance of the radiator.
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Patent Agency Ranking
公开(公告)号：US20190198987A1
公开(公告)日：2019-06-27
申请号：US16140421
申请日：2018-09-24
Applicant: California Institute of Technology
Inventor： Behrooz Abiri , Florian Bohn , Seyed Ali Hajimiri
CPC classification number: H01Q1/38 , H01Q9/0407 , H01Q9/065
Abstract: An antenna, includes in part, a metal piece formed on a surface of a substrate and configure to radiate electromagnetic waves, a metal feed formed in the substrate and configure to supply electrical signal to the metal piece, and a multitude of metallic walls formed in the substrate and enclosing the metal piece. The antenna may be a patch antenna, a monopole antenna, or a dipole antenna. Each metallic wall may include a via that is fully or partially filled by a metal, or an electroplated tub formed in the substrate. The antenna further includes, in part, a metallic trace formed on the surface of the substrate and enclosing the antenna. The substrate may be a printed circuit board.
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公开(公告)号：US20190173389A1
公开(公告)日：2019-06-06
申请号：US16004198
申请日：2018-06-08
Applicant: California Institute of Technology
Inventor： Seyed Ali Hajimiri , Behrooz Abiri , Florian Bohn
Abstract: A rectifying circuit includes, in part, first and second NMOS transistors, an impedance matching network, and an RF block circuit. The source and gate terminals of the first NMOS transistor respectively receive the ground potential and a biasing voltage. The second NMOS transistor has a gate terminal coupled to the drain terminal of the first NMOS transistor, a drain terminal coupled to the gate terminal of the first NMOS transistor, and a source terminal receiving the ground potential. The impedance matching network is disposed between the antenna and the drain terminals of the first and second NMOS transistors. The RF block circuit is coupled between the drain terminals of the first and second NMOS transistors and the output terminal of the rectifying circuit. The RF block circuit is adapted to prevent the RF signal from flowing into the output terminal of the rectifying circuit.
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公开(公告)号：US10003278B2
公开(公告)日：2018-06-19
申请号：US14552249
申请日：2014-11-24
Applicant: California Institute of Technology
Inventor： Seyed Ali Hajimiri , Behrooz Abiri , Florian Bohn
CPC classification number: H02M7/217 , H02J5/00 , H02J17/00 , H02J50/10 , H02M7/003 , H02M7/23 , H02M2001/123
Abstract: A rectifying circuit includes, in part, first and second NMOS transistors, an impedance matching network, and an RF block circuit. The source and gate terminals of the first NMOS transistor respectively receive the ground potential and a biasing voltage. The second NMOS transistor has a gate terminal coupled to the drain terminal of the first NMOS transistor, a drain terminal coupled to the gate terminal of the first NMOS transistor, and a source terminal receiving the ground potential. The impedance matching network is disposed between the antenna and the drain terminals of the first and second NMOS transistors. The RF block circuit is coupled between the drain terminals of the first and second NMOS transistors and the output terminal of the rectifying circuit. The RF block circuit is adapted to prevent the RF signal from flowing into the output terminal of the rectifying circuit.
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9.发明申请Large-Scale Space-Based Solar Power Station: Power Transmission Using Steerable Beams 审中-公开大型太空太阳能发电站：使用导向梁的动力传输公开(公告)号：US20160380486A1
公开(公告)日：2016-12-29
申请号：US14712856
申请日：2015-05-14
Applicant: California Institute of Technology
Inventor： Seyed Ali Hajimiri , Harry A. Atwater , Sergio Pellegrino , Behrooz Abiri , Florian Bohn
IPC: H02J50/80 , H02J50/90 , H02J50/40 , H02J50/23 , B64G1/66 , H02S20/30 , B64G1/44 , B64G1/42 , B64G1/10 , H02J3/38 , H02J3/46
CPC classification number: H02J50/80 , B64G1/1085 , B64G1/222 , B64G1/283 , B64G1/286 , B64G1/288 , B64G1/36 , B64G1/401 , B64G1/403 , B64G1/405 , B64G1/406 , B64G1/407 , B64G1/428 , B64G1/44 , B64G1/443 , B64G1/66 , B64G2001/1092 , H01L31/041 , H01L31/042 , H02J3/383 , H02J3/46 , H02J50/23 , H02J50/40 , H02J50/90 , H02S20/30 , H02S30/20 , H02S40/00 , H02S40/30 , H04B7/18515 , Y02E10/52
Abstract: A space-based solar power station, a power generating satellite module and/or a method for collecting solar radiation and transmitting power generated using electrical current produced therefrom is provided. Power transmitters can be coordinated as a phased array and the power generated by the phased array is transmitted to one or more power receivers to achieve remote wireless power generation and delivery. In many embodiments, a reference signal is distributed within the space-based solar power station to coordinate the phased array. In several embodiments, determinations of the relative locations of the antennas in the array are utilized to evaluate the phase shift and/or amplitude modulation to apply the reference signal at each power transmitter.
Abstract translation: 提供了一种太空太阳能发电站，发电卫星模块和/或收集太阳辐射并发射使用其产生的电流产生的电力的方法。 功率发射器可以作为相控阵进行协调，由相控阵产生的功率被发送到一个或多个功率接收器以实现远程无线发电和发射。 在许多实施例中，参考信号分布在空基太阳能发电站内以协调相控阵列。 在几个实施例中，使用阵列中的天线的相对位置的确定来评估相移和/或幅度调制以在每个功率发射器处施加参考信号。
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公开(公告)号：US11616520B2
公开(公告)日：2023-03-28
申请号：US15273633
申请日：2016-09-22
Applicant: California Institute of Technology
Inventor： Seyed Ali Hajimiri , Florian Bohn , Behrooz Abiri
Abstract: A device includes, in part, an antenna adapted to receive an RF signal that includes modulated data, a splitter/coupler adapted to split the received RF signal, a receiver adapted to demodulate the data from a first portion of the RF signal, and a power recovery unit adapted to convert to a DC power a second portion of the RF signal. The splitter/coupler is optionally adjustable to split the RF signal in accordance with a value that may be representative of a number of factors, such as the target data rate, the DC power requirement of the device, and the like. The device optionally includes a switch and/or a power combiner adapted to deliver all the received RF power to the receiver depending on any number of operation conditions of the device or the device's distance from an RF transmitting device.
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