Resonator, filter, composite filter, transmitting and receiving apparatus, and communication apparatus
    2.
    发明授权
    Resonator, filter, composite filter, transmitting and receiving apparatus, and communication apparatus 失效
    谐振器,滤波器,复合滤波器,发送和接收装置以及通信装置

    公开(公告)号:US06888425B2

    公开(公告)日:2005-05-03

    申请号:US10414018

    申请日:2003-04-16

    摘要: A microstrip resonator including a dielectric substrate, a resonance electrode on a first main surface of the dielectric substrate, and a ground electrode over an entire second main surface of the dielectric substrate. The resonance electrode includes a superconducting film and a metal film deposited in that order. The ground electrode includes a superconducting film and a metal film deposited in that order. The superconducting film functions as an electrode in low-temperature operation below a critical temperature, and the metal film functions as an electrode in high-temperature operation at or above the critical temperature. The length of the superconducting film of the resonance electrode is set to be longer than that of the metal film of the resonance electrode, so that the resonance frequency in low-temperature operation is substantially equal to the resonance frequency in high-temperature operation.

    摘要翻译: 一种微带谐振器,包括电介质基板,电介质基板的第一主表面上的谐振电极和电介质基板的整个第二主表面上的接地电极。 共振电极包括依次沉积的超导膜和金属膜。 接地电极包括依次沉积的超导膜和金属膜。 超临界薄膜在低于临界温度的低温操作下起着电极的作用,金属膜在临界温度以上或高于临界温度下作为高温操作电极。 谐振电极的超导膜的长度被设定为比谐振电极的金属膜的长度长,使得低温运转中的谐振频率基本上等于高温运转时的谐振频率。