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    • 1. 发明申请
    • CIRCUIT CONFIGURATION USING A FREQUENCY CONVERTER TO ACHIEVE TUNABLE CIRCUIT COMPONENTS SUCH AS FILTERS AND AMPLIFIERS
    • 使用频率转换器实现可调谐电路组件(如过滤器和放大器)的电路配置
    • US20150236647A1
    • 2015-08-20
    • US14428118
    • 2013-03-13
    • Alfred GRAZEL
    • Alfred Grayzel
    • H03D7/04
    • H03D7/04H03H7/0153H03H11/1291
    • A frequency converting circuit including: an impedance network having a first pair of terminals and operable to provide a first signal in a frequency band centered at a first frequency f1; an output network having second and third pairs of terminals and configured to pass, between the second and third pairs of terminals, a second signal in a frequency band centered at a second frequency f2 different from f1; a pump circuit having a fourth pair of terminals and operative to provide, at the fourth pair of terminals, a third signal at a pump frequency fp, where fp?f1 and f2; and a frequency converter having a first port connected to the first terminals, a second port connected to the second terminals and a third port connected to the fourth terminals, the frequency converter being operative to cause the difference between f1 and f2 to be equal to fp.
    • 一种频率转换电路,包括:阻抗网络,具有第一对终端,并且可操作以在以第一频率f1为中心的频带中提供第一信号; 输出网络,具有第二和第三对终端,并且被配置为在第二和第三对终端之间通过以与f1不同的第二频率f2为中心的频带中的第二信号; 具有第四对端子的泵电路,并且可操作以在第四对端子处以泵浦频率fp提供第三信号,其中fp≤f1和f2; 以及变频器,其具有连接到所述第一端子的第一端口,连接到所述第二端子的第二端口和连接到所述第四端子的第三端口,所述变频器可操作以使得所述f1和f2之间的差值等于fp 。