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    • 6. 发明授权
    • Ganged radio frequency filter
    • 联动射频滤波器
    • US4044318A
    • 1977-08-23
    • US579165
    • 1975-05-20
    • Edward J. DalyRichard SparksGeorge R. Spencer
    • Edward J. DalyRichard SparksGeorge R. Spencer
    • G01S13/44G01S9/02H01P1/20
    • G01S13/4436
    • A three channel electronically tunable filter arrangement for selecting radio frequency signals to be processed in a monopulse receiver is disclosed. Each channel of the disclosed filter arrangement includes an yttrium-iron-garnet (YIG) filter disposed in a common structure so that the resonant frequency of each channel may be controlled by the magnetic field of a single electromagnet. Also disclosed is an alignment method whereby the response of the YIG filter in each channel may be independently adjusted to eliminate any substantial imbalance between channels as the strength of the magnetic field is changed to change the resonant frequencies of such filters.
    • 公开了一种用于选择在单脉冲接收机中处理的射频信号的三通道电子可调谐滤波器装置。 所公开的滤波器装置的每个通道包括以共同结构设置的钇 - 铁 - 石榴石(YIG)滤波器,使得每个通道的谐振频率可以由单个电磁体的磁场控制。 还公开了一种对准方法,其中可以独立地调整每个通道中的YIG滤波器的响应,以消除磁场的强度改变这些滤波器的谐振频率之间的通道之间的任何实质的不平衡。