Active quadrature circuits for high frequency applications

    公开(公告)号:US10972075B2

    公开(公告)日:2021-04-06

    申请号:US15776179

    申请日:2015-12-11

    Abstract: An active quadrature generation circuit configured to provide an in-phase output signal and a quadrature output signal based on an input signal and a method of fabricating the active quadrature generation circuit on an integrated circuit are described. The circuit includes an input node to receive the input signal and a first transistor including a collector connected to a power supply pin. The circuit also includes a second transistor including a base connected to the power supply pin, the second transistor differing in size from the first transistor by a factor of K, wherein the in-phase output signal and the quadrature output signal are generated based on an inherent phase difference of 90 degrees between a current at a collector of the first transistor and a current at a base of the second transistor.

    Radar system with frequency conversion and corresponding method

    公开(公告)号:US11029387B2

    公开(公告)日:2021-06-08

    申请号:US16220482

    申请日:2018-12-14

    Abstract: A radar system with frequency conversion includes a signal generator configured to generate an input signal at a first frequency. A transmitting interposer is configured to receive the input signal from the signal generator. The transmitting interposer includes a transmitting front-end module configured to upconvert the input signal at the first frequency to an outgoing radar signal at a second frequency greater than the first frequency, and a transmitting antenna module having a plurality of transmitting patches configured to radiate the outgoing radar signal. A receiving interposer is configured to transmit an output signal to the signal generator. The receiving interposer includes a receiving antenna module having a plurality of receiving patches configured to capture an incoming radar signal at the second frequency, and a receiving front-end module configured to downconvert the incoming radar signal at the second frequency to the output signal at the first frequency.

    Internally matched active single-to-differential RF converter
    7.
    发明授权
    Internally matched active single-to-differential RF converter 有权
    内部匹配的有源单对差分RF转换器

    公开(公告)号:US09584073B1

    公开(公告)日:2017-02-28

    申请号:US14877331

    申请日:2015-10-07

    CPC classification number: H03F1/302 H03F3/19 H03F3/195 H03F3/26 H03F2200/451

    Abstract: A single-to-differential converter and a method of fabricating the single-to-differential converter on an integrated circuit are described. The single-to-differential converter provides a pair of differential outputs based on a single-ended input and includes an input node to receive the single-ended input, and a first transistor connected to a power supply pin. A second transistor is connected to the power supply pin. The first transistor and the second transistor are biased under a same amount of direct current (DC) and the pair of differential outputs are generated at respective collectors of the first transistor and the second transistor.

    Abstract translation: 描述了一种单差分转换器和在集成电路上制造单对差分转换器的方法。 单差分转换器提供基于单端输入的一对差分输出,并且包括用于接收单端输入的输入节点和连接到电源引脚的第一晶体管。 第二晶体管连接到电源引脚。 第一晶体管和第二晶体管在相同量的直流(DC)下被偏置,并且该对差分输出在第一晶体管和第二晶体管的相应集电极处产生。

    ACTIVE QUADRATURE CIRCUITS FOR HIGH FREQUENCY APPLICATIONS

    公开(公告)号:US20200266801A1

    公开(公告)日:2020-08-20

    申请号:US15776179

    申请日:2015-12-11

    Abstract: An active quadrature generation circuit configured to provide an in-phase output signal and a quadrature output signal based on an input signal and a method of fabricating the active quadrature generation circuit on an integrated circuit are described. The circuit includes an input node to receive the input signal and a first transistor including a collector connected to a power supply pin. The circuit also includes a second transistor including a base connected to the power supply pin, the second transistor differing in size from the first transistor by a factor of K, wherein the in-phase output signal and the quadrature output signal are generated based on an inherent phase difference of 90 degrees between a current at a collector of the first transistor and a current at a base of the second transistor.

Patent Agency Ranking