公开(公告)号：US20150145350A1

公开(公告)日：2015-05-28

申请号：US14552249

申请日：2014-11-24

Applicant: California Institute of Technology

Inventor： Seyed Ali HAJIMIRI ,  Behrooz ABIRI ,  Florian BOHN

IPC: H02M7/217 ,  H03H7/01 ,  H03H7/38 ,  H02J17/00 ,  H02J5/00

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.

Abstract translation: 整流电路部分地包括第一和第二NMOS晶体管，阻抗匹配网络和RF块电路。 第一NMOS晶体管的源极和栅极端子分别接收接地电位和偏置电压。 第二NMOS晶体管具有耦合到第一NMOS晶体管的漏极端子的栅极端子，耦合到第一NMOS晶体管的栅极端子的漏极端子和接收地电位的源极端子。 阻抗匹配网络设置在第一和第二NMOS晶体管的天线和漏极端子之间。 RF块电路耦合在第一和第二NMOS晶体管的漏极端与整流电路的输出端之间。 RF块电路适于防止RF信号流入整流电路的输出端。

公开(公告)号：US20190260237A1

公开(公告)日：2019-08-22

申请号：US16109591

申请日：2018-08-22

Applicant: California Institute of Technology

Inventor： Florian BOHN ,  Behrooz Abiri ,  Seyed Ali Hajimiri

IPC: H02J50/20 ,  H02J50/40 ,  H02J7/02 ,  H04B5/00

Abstract: A method of generating a DC power from incident RF waves, includes, in part, measuring the amount of power being received by a device generating the DC power, and controlling the phases of the RF waves being transmitted by a multitude of RF transmitters in accordance with the measured power. A programmable test load is optionally used at the device to measure the received power. The device optionally includes, an antenna, an RF-to-DC converter to generate the DC power, an impedance matching/transformation circuit, and an RF load/matching circuit.

公开(公告)号：US20160190872A1

公开(公告)日：2016-06-30

申请号：US14830692

申请日：2015-08-19

Applicant: California Institute of Technology

Inventor： Florian BOHN ,  Behrooz Abiri ,  Seyed Ali Hajimiri

IPC: H02J50/20

CPC classification number: H02J50/20 ,  H02J7/025 ,  H02J50/40 ,  H04B5/0037 ,  H04B5/0075

Abstract: A method of generating a DC power from incident RF waves, includes, in part, measuring the amount of power being received by a device generating the DC power, and controlling the phases of the RF waves being transmitted by a multitude of RF transmitters in accordance with the measured power. A programmable test load is optionally used at the device to measure the received power. The device optionally includes, an antenna, an RF-to-DC converter to generate the DC power, an impedance matching/transformation circuit, and an RF load/matching circuit.

Abstract translation: 从入射RF波产生直流电力的方法部分地包括测量由产生直流电力的装置接收的功率的量，以及控制由多个射频发射机按照发射的RF波的相位 具有测量的功率。 设备可选择使用可编程测试负载来测量接收功率。 该设备可选地包括天线，用于产生DC电力的RF-DC转换器，阻抗匹配/变换电路和RF负载/匹配电路。