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1. 发明授权

US12107547B2 Single sideband mixer 有权
公开(公告)号：US12107547B2
公开(公告)日：2024-10-01
申请号：US17816106
申请日：2022-07-29
申请人： Realtek Semiconductor Corp.
发明人： Chia-Liang (Leon) Lin
IPC分类号： H03D7/16 , H03D7/14
CPC分类号： H03D7/165 , H03D7/1441 , H03D7/1483
摘要： A SSB (single sideband) mixer is configured to mix a first signal with a second signal, both the first signal and the second signal being a four-phase signal, and comprises eight gated inverters, each receiving a respective phase of the first signal and conditionally outputting a respective current in accordance with a control of a respective phase of the second signal, wherein currents output from the eight gated inverters are summed to establish a third signal that is a two-phase signal.

2. 发明公开

US20240291436A1 Local-Oscillator Filtering in a Mixer 审中-公开
公开(公告)号：US20240291436A1
公开(公告)日：2024-08-29
申请号：US18585755
申请日：2024-02-23
申请人： AyDeeKay LLC dba Indie Semiconductor
发明人： Benny Sheinman
IPC分类号： H03D7/14
CPC分类号： H03D7/1475 , H03D7/1483 , H03D2200/0023
摘要： An integrated circuit that selectively filters out common-mode and differential signals is described. This integrated circuit may include an RF receiver with a mixer that converts signals between a band of frequencies in the RF and a second band of frequencies based at least in part on second signals, where the second band of frequencies is less than the band of frequencies. Moreover, the mixer may include input ports that receive the second signals and include a filter circuit, electrically coupled in parallel with the input ports, that filters out the common-mode signals above a threshold frequency and filters out the differential signals below the threshold frequency. For example, the filter circuit may include a half-wavelength transmission line. Note that the mixer may convert the differential signals to the common-mode signals below the threshold frequency and may convert the common-mode signals to the differential signals above the threshold frequency.

3. 发明授权

US12034407B2 Up/down frequency converter with millimeter-wave low-phase-noise local oscillator 有权
公开(公告)号：US12034407B2
公开(公告)日：2024-07-09
申请号：US17970256
申请日：2022-10-20
申请人： Samsung Electronics Co., Ltd.
发明人： Jaeyong Ko , Namkyoung Kim , Chanwook An , Kyungho Yoo , Tongho Chung
IPC分类号： H03D7/14 , H04B1/00 , H04B1/04
CPC分类号： H03D7/1466 , H03D7/1441 , H04B1/0096 , H04B2001/0416
摘要： An electronic device for converting a frequency with a local oscillator (LO) for generating an LO signal is provided. The electronic device may include an intermediate frequency (IF) port configured to input or output a signal in a first frequency band, a radio frequency (RF) port configured to input or output a signal in a second frequency band, a passive mixer configured to convert the signal in the first frequency band into the signal in the second frequency band or convert the signal in the second frequency band into the signal in the first frequency band, an LO configured to generate an LO signal in one of a plurality of frequency bands and provide the LO signal to the passive mixer, and a bi-directional amplifier including a gain equalizer configured to control gain flatness of a signal input to or output from the IF port.

4. 发明公开

US20240120959A1 MULTIBAND RADIO RECEIVERS 审中-公开
公开(公告)号：US20240120959A1
公开(公告)日：2024-04-11
申请号：US18273257
申请日：2022-01-24
申请人： Nordic Semiconductor ASA
发明人： Pete SIVONEN , Jarkko JUSSILA
IPC分类号： H04B1/28 , H03D7/14 , H03D7/16
CPC分类号： H04B1/28 , H03D7/1466 , H03D7/165
摘要： A configurable radio frequency receiver is provided. The receiver has at least one low noise amplifier; an oscillator arrangement for producing a plurality of signals having a first number or a second number of separate phases; and multiple mixer modules having inputs connected to an output of the low noise amplifier. The receiver has a configurable resistor network. The receiver is configured such that it can operate in a first mode with said plurality of signals having said first number of phases or a second mode with said plurality of signals having said second number of phases. The configurable resistor network enables the receiver to operate in the first mode in a first configuration, and the second mode in a second configuration. The mixer modules are employed during the operation of the first mode and the second mode.

5. 发明公开

US20240056031A1 ACTIVE BALUN DESIGN 审中-公开
公开(公告)号：US20240056031A1
公开(公告)日：2024-02-15
申请号：US18300069
申请日：2023-04-13
申请人： Analog Devices, Inc.
发明人： Song Lin , Xudong Wang , Jinzhou Cao , Christopher Eugene Hay
IPC分类号： H03D7/14 , H03D7/12
CPC分类号： H03D7/1441 , H03D7/125 , H03D2200/0023
摘要： The present subject matter relates to active balun circuits. An active balun circuit includes a plurality of transistors; an output transmission line connected to output terminals of the transistors; an input transmission line; and a plurality of serial capacitors coupled to an input terminal of the transistors and the input transmission line.

6. 发明授权

US11888446B2 Semiconductor device 有权
公开(公告)号：US11888446B2
公开(公告)日：2024-01-30
申请号：US17607943
申请日：2020-04-27
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Kiyotaka Kimura , Takeya Hirose , Hidetomo Kobayashi , Takayuki Ikeda
IPC分类号： H03D7/14 , H03D7/12 , H01L27/12 , H01L29/786 , H10B12/00
CPC分类号： H03D7/12 , H01L27/1207 , H01L27/1225 , H01L27/1255 , H01L29/7869 , H01L29/78648 , H10B12/00
摘要： A semiconductor device with a novel structure is provided. The semiconductor device includes a mixer circuit including a digital-analog converter circuit, a control circuit for controlling the digital-analog converter circuit, a power source control switch, and a plurality of Gilbert circuits. The plurality of Gilbert circuits each include an analog potential holding circuit for holding an analog potential output from the digital-analog converter circuit. The control circuit has a function of outputting a signal for controlling the analog potential holding circuit and the digital-analog converter circuit. The power source control switch has a function of stopping supply of a power source voltage to the control circuit in a period during which the analog potential held in the analog potential holding circuit is not updated. The analog potential holding circuit includes a first transistor. The first transistor includes a semiconductor layer including an oxide semiconductor in a channel formation region.

7. 发明授权

US11817826B2 Frequency mixer including non-linear circuit 有权
公开(公告)号：US11817826B2
公开(公告)日：2023-11-14
申请号：US17886061
申请日：2022-08-11
申请人： Electronics and Telecommunications Research Institute
发明人： Woojin Chang , Dong Min Kang , Byoung-Gue Min , Jong Yul Park , Jongmin Lee , Yoo Jin Jang , Kyu Jun Cho , Hong Gu Ji
IPC分类号： H03D7/12 , H03H7/38 , H03D7/14
CPC分类号： H03D7/125 , H03D7/14 , H03H7/38
摘要： Disclosed is a frequency mixer. The frequency mixer includes a first matching circuit that generates a matched local oscillator (LO) signal based on an LO signal, a non-linear circuit that generates a non-linear LO signal based on the matched LO signal, a second matching circuit that generates a matched radio frequency (RF) signal based on an RF signal, a mixing circuit that generates a mixed signal based on a mixing of the non-linear LO signal and the matched RF signal, a third matching circuit that generates an intermediate frequency (IF) signal based on the mixed signal, wherein the non-linear circuit includes a non-linear transistor, a bias transistor, and an internal matching circuit connected in series.

8. 发明授权

US11770103B2 Passive mixer, operating method thereof, and devices including the same 有权
公开(公告)号：US11770103B2
公开(公告)日：2023-09-26
申请号：US17665405
申请日：2022-02-04
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Sunwoo Kong , Bong Hyuk Park , Hui Dong Lee , Seunghyun Jang , Seok Bong Hyun
IPC分类号： H03D7/14 , H04B1/18 , H03D3/00 , H04B1/40
CPC分类号： H03D7/1441 , H03D3/009 , H03D7/1466 , H04B1/18 , H04B1/40
摘要： A method and apparatus for input matching of a passive mixer are disclosed. The passive mixer includes a differential transistor pair including a first transistor and a second transistor, a first inductor having one end connected to the first transistor and another end connected to a ground, a second inductor having one end connected to the second transistor and another end connected to a ground, and a third inductor having one end for receiving a radio frequency (RF) signal and another end connected to a ground.

9. 发明授权

US11757431B2 Current-mode signal path of an integrated radio frequency pulse generator 有权
公开(公告)号：US11757431B2
公开(公告)日：2023-09-12
申请号：US17816146
申请日：2022-07-29
申请人： International Business Machines Corporation
发明人： Sudipto Chakraborty , John Francis Bulzacchelli , David James Frank
IPC分类号： H03K3/012 , G06N10/40 , H03D7/12 , H03M1/66 , H03D7/14
CPC分类号： H03K3/012 , G06N10/40 , H03D7/125 , H03D7/1441 , H03M1/66
摘要： One or more systems, devices and/or methods of use provided herein relate to a device that can support a signal generation. A current-mode end-to-end signal path can include a digital to analog converter (DAC) operating in current-mode and an upconverting mixer, operating in current-mode and operatively coupled to the DAC. Analog inputs and outputs of the DAC and upconverting mixer can be represented as currents, and the DAC can generate a baseband signal. The DAC and upconverting mixer each can comprise switching transistors of the same type, such as p-type metal-oxide semiconductor (PMOS) switching transistors. In one or more embodiments, a current source and a diode-connected transistor can be arranged in parallel in the current-mode signal path, and the current source passes a static current, while the diode-connected transistor passes both a static current and a dynamic current.

10. 发明授权

US11742801B2 Traveling wave mixer 有权
公开(公告)号：US11742801B2
公开(公告)日：2023-08-29
申请号：US17878244
申请日：2022-08-01
申请人： Keysight Technologies, Inc.
发明人： Rizwan Pasha
IPC分类号： H03D7/14 , H03D7/12 , H03F3/58
CPC分类号： H03D7/12 , H03D7/14 , H03F3/58
摘要： A travelling wave mixer (TWM) is provided that includes an input artificial transmission line configured to transmit an input signal, an output artificial transmission line configured to transmit an output signal, a local oscillator (LO) artificial transmission line configured to transmit an LO signal, and a plurality of mixer stages connected in parallel between the output artificial transmission and the input artificial transmission line. Each of the mixer stages includes an input amplifier, a mixer and an output amplifier connected in series between the input artificial transmission line and the output artificial transmission line, where an input of the mixer receives an output of the input amplifier, and an output of the mixer is applied to an input of the output amplifier. Further, each of the mixer stages includes a phase-adjustable LO amplifier circuit connected between the LO artificial transmission line and an LO input of the mixer, where the phase-adjustable LO amplifier is configured to adjust an LO signal phase applied to the LO input of each mixer to null out a phase error in each mixer stage independently.

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