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公开(公告)号：US20170214369A1
公开(公告)日：2017-07-27
申请号：US15361468
申请日：2016-11-27
Applicant: MEDIATEK INC.
Inventor： Chien-Wei Tseng , Ming-Da Tsai
CPC classification number: H03F1/26 , H03F1/0261 , H03F1/301 , H03F3/193 , H03F3/195 , H03F3/21 , H03F3/245 , H03F3/45071 , H03F3/45085 , H03F3/45179 , H03F3/45183 , H03F2200/219 , H03F2200/225 , H03F2203/45144 , H03F2203/45154 , H03F2203/45172 , H03F2203/45542 , H03F2203/45621 , H03F2203/50
Abstract: A power amplifier system includes a differential power amplifier and a bias circuit. The differential power amplifier is arranged for receiving a differential input pair to generate an output signal. The bias circuit is arranged for generating a bias voltage to bias the differential power amplifier, and the bias circuit comprises a source follower for receiving a reference voltage to generate the bias voltage.
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公开(公告)号：US09691540B2
公开(公告)日：2017-06-27
申请号：US14736653
申请日：2015-06-11
Applicant: MediaTek Inc.
Inventor： Tao-Yi Lee , Po-Sen Tseng , Ming-Da Tsai
IPC: H03H2/00 , H03H7/42 , H01F27/28 , H01L23/522 , H01L23/48
CPC classification number: H01F27/2847 , H01L23/48 , H01L23/5222 , H01L23/5227
Abstract: A hybrid passive device for synergizing at least one passive component which resides in at least one technology is provided. The hybrid passive device includes a first passive component and a second passive component. The first passive component resides in a first technology of the at least one technology and/or a second technology of the at least one technology, the second technology is different from the first technology, and a technology boundary is arranged between the second technology and the first technology. The second passive component of the at least one passive component is different from the first passive component. The second passive component resides in the first technology and/or the second technology, and the first passive component and the second passive component are electromagnetically coupled to each other through the technology boundary.
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公开(公告)号：US09385683B2
公开(公告)日：2016-07-05
申请号：US14139806
申请日：2013-12-23
Applicant: MEDIATEK INC.
Inventor： Chih-Hung Lee , Ming-Da Tsai , Jui-Lin Hsu
Abstract: A diplexer, for coupling a first radio frequency (RF) signal corresponding to a first carrier frequency and a second RF signal corresponding to a second carrier frequency is disclosed. The diplexer includes a first port arranged to couple the first RF signal; a second port arranged to couple the second RF signal; a third port capable of connecting an antenna; a first impedance unit coupled to the first port and the third port; and a second impedance unit coupled to the second port and the third port; wherein the first port, the second port and the third port are coupled to a direct current (DC) ground; wherein the first impedance unit is arranged to provide an first open-circuit impedance against the second RF signal, and the second impedance unit is arranged to provide a second open-circuit impedance against the first RF signal.
Abstract translation: 公开了一种用于耦合对应于第一载波频率的第一射频（RF）信号和对应于第二载波频率的第二RF信号的双工器。 双工器包括被布置成耦合第一RF信号的第一端口; 布置成耦合第二RF信号的第二端口; 能够连接天线的第三端口; 耦合到所述第一端口和所述第三端口的第一阻抗单元; 以及耦合到所述第二端口和所述第三端口的第二阻抗单元; 其中所述第一端口，所述第二端口和所述第三端口耦合到直流（DC）接地; 其中所述第一阻抗单元布置成针对所述第二RF信号提供第一开路阻抗，并且所述第二阻抗单元布置成针对所述第一RF信号提供第二开路阻抗。
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Patent Agency Ranking
公开(公告)号：US09077310B2
公开(公告)日：2015-07-07
申请号：US14140524
申请日：2013-12-25
Applicant: MEDIATEK INC.
Inventor： Ming-Da Tsai
CPC classification number: H03H7/48 , H01F19/04 , H04B1/0458
Abstract: A power combiner includes a primary winding and a secondary winding, wherein at least the primary winding comprises a center-tap; and a termination module operably coupled to the center-tapped primary winding and arranged to provide harmonic terminations on a plurality of frequencies. In addition, there is provided a radio frequency transmitter having a power combiner, where the power combiner includes a primary winding and a secondary winding, wherein at least the primary winding includes a center-tap; and a termination module operably coupled to the center-tapped primary winding and arranged to provide harmonic terminations on a plurality of frequencies.
Abstract translation: 功率组合器包括初级绕组和次级绕组，其中至少初级绕组包括中心抽头; 以及终端模块，其可操作地耦合到所述中心抽头的初级绕组并被布置成在多个频率上提供谐波终端。 另外，提供了具有功率合成器的射频发射器，其中功率组合器包括初级绕组和次级绕组，其中至少初级绕组包括中心抽头; 以及终端模块，其可操作地耦合到所述中心抽头的初级绕组并被布置成在多个频率上提供谐波终端。
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公开(公告)号：US09025709B2
公开(公告)日：2015-05-05
申请号：US14221302
申请日：2014-03-21
Applicant: Mediatek Inc.
Inventor： Chih-Fan Liao , Ming-Da Tsai
CPC classification number: H04B1/10 , H03F1/3211 , H03F1/3223 , H03F3/195 , H03F3/211 , H03F3/3028 , H03F3/45475 , H03F2200/294 , H03F2200/411 , H03F2203/45512 , H03F2203/45526 , H03F2203/45528 , H03F2203/45594 , H03F2203/45702 , H04L1/0036
Abstract: A receiver front end circuit includes a low-noise amplifier including: a first receiver path having: a first low-noise transconductor to amplify a received signal and output the amplified received signal; and a first mixer to down-convert the amplified received signal. A second receiver path includes: an auxiliary receiver having: a second transconductor to output an amplified received signal; a baseband amplifier having an input port and an output port; a first resistance coupling the input port to the output port of the baseband amplifier and to convert the amplified received signal from current to voltage and set a voltage gain of the second receiver path; and a second resistance coupled from the output port of the baseband amplifier to the first mixer output. In some examples, frequency-upconversion feedback path includes a third mixer to frequency up-convert the amplified received signal at an output of the second receiver path.
Abstract translation: 接收机前端电路包括低噪声放大器，包括：第一接收器路径，具有：第一低噪声跨导器，用于放大接收信号并输出放大的接收信号; 以及用于对放大的接收信号进行下变频的第一混频器。 第二接收机路径包括：辅助接收机，具有：第二跨导体，用于输出放大的接收信号; 具有输入端口和输出端口的基带放大器; 第一电阻将输入端口耦合到基带放大器的输出端口，并将放大的接收信号从电流转换成电压，并设置第二接收器路径的电压增益; 以及从基带放大器的输出端口耦合到第一混频器输出的第二电阻。 在一些示例中，上变频反馈路径包括第三混频器，用于在第二接收机路径的输出端对放大的接收信号进行升频转换。
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36.发明申请公开(公告)号：US20140354371A1
公开(公告)日：2014-12-04
申请号：US14140524
申请日：2013-12-25
Applicant: MEDIATEK INC.
Inventor： Ming-Da Tsai
IPC: H03H7/48
CPC classification number: H03H7/48 , H01F19/04 , H04B1/0458
Abstract: A power combiner includes a primary winding and a secondary winding, wherein at least the primary winding comprises a centre-tap; and a termination module operably coupled to the centre-tapped primary winding and arranged to provide harmonic terminations on a plurality of frequencies. In addition, there is provided a radio frequency transmitter having a power combiner, where the power combiner includes a primary winding and a secondary winding, wherein at least the primary winding includes a centre-tap; and a termination module operably coupled to the centre-tapped primary winding and arranged to provide harmonic terminations on a plurality of frequencies.
Abstract translation: 功率组合器包括初级绕组和次级绕组，其中至少初级绕组包括中心抽头; 以及终端模块，其可操作地耦合到所述中心抽头的初级绕组并被布置成在多个频率上提供谐波终端。 另外，提供了具有功率合成器的射频发射器，其中功率组合器包括初级绕组和次级绕组，其中至少初级绕组包括中心抽头; 以及终端模块，其可操作地耦合到所述中心抽头的初级绕组并被布置成在多个频率上提供谐波终端。
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公开(公告)号：US20140132450A1
公开(公告)日：2014-05-15
申请号：US14136898
申请日：2013-12-20
Inventor： Ping-Yu Chen , Brian A. Floyd , Jie-Wei Lai , Arun S. Natarajan , Sean T. Nicolson , Scott K. Reynolds , Ming-Da Tsai , Alberto Valdes-Garcia , Jing-Hong C. Zhan
IPC: H01Q3/26
CPC classification number: H01Q3/2694 , H01Q3/267
Abstract: A phased-array receiver that may be effectively implemented on a silicon substrate. A receiver includes multiple radio frequency (RF) front-ends, each configured to receive a signal with a given delay relative to the others such that the gain of the received signal is highest in a given direction. The receiver also includes a power combination network configured to accept an RF signal from each of the RF front-ends and to pass a combined RF signal to a down-conversion element, where the power distribution network includes a combination of active and passive components. Each RF front-end includes a phase shifter configured to delay the signal in accordance with the given direction and a variable amplifier configured to adjust the gain of the signal.
Abstract translation: 可以有效地在硅衬底上实现的相控阵接收器。 接收机包括多个射频（RF）前端，每个被配置为接收相对于其它的给定延迟的信号，使得接收信号的增益在给定方向上最高。 接收机还包括配置成接收来自每个RF前端的RF信号并将组合的RF信号传递到下变频元件的功率组合网络，其中配电网络包括有源和无源组件的组合。 每个RF前端包括被配置为根据给定方向延迟信号的移相器和配置成调整信号增益的可变放大器。
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公开(公告)号：US08725105B2
公开(公告)日：2014-05-13
申请号：US13798097
申请日：2013-03-13
Applicant: Mediatek Inc.
Inventor： Ming-Da Tsai , Chih-Fan Liao
CPC classification number: H03F3/193 , H03F1/3211 , H03F3/45475 , H03F3/72 , H03F2200/294 , H03F2203/45138 , H03G3/3052 , H04B1/109
Abstract: A low noise amplifier is used to amplify a differential input pair to generate a differential output pair. The low noise amplifier includes two main paths, two assistant circuits and two adders to make noise carried on two output signals of the differential output pair be the same; therefore, the noise of the two output signals can be fully cancelled in the following operations.
Abstract translation: 低噪声放大器用于放大差分输入对以产生差分输出对。 低噪声放大器包括两个主路径，两个辅助电路和两个加法器，使差分输出对的两个输出信号上承载的噪声相同; 因此，在以下操作中可以完全取消两个输出信号的噪声。
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