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    • 4. 发明公开
    • 가변 브래그 격자를 이용한 무선 주파수 대역의 위상 제어기
    • 使用TURNABLE BRAGG细胞的相变装置
    • KR1020050082115A
    • 2005-08-22
    • KR1020040010494
    • 2004-02-17
    • 삼성전자주식회사
    • 윤진호
    • H01P1/18
    • H01P1/185H01P1/181H01P1/19
    • A phase shifter which uses Bragg gratings and having tunable phase shift functions with respect to input signals in an RF band without using a separate RF device. The phase shifter includes a dielectric layer, a first conductive layer formed on an upper surface of the dielectric layer lengthwise along the dielectric layer so as to provide a signal path for the input signal, a second conductive layer formed at a first end of a lower surface of the dielectric layer so as to form Bragg gratings lengthwise along the dielectric layer, a third conductive layer formed at a second end of the lower surface of the dielectric layer in line with the second conductive layer so as to form Bragg gratings lengthwise along the dielectric layer, and a moving unit for adjusting a distance between the second conductive layer and the third conductive layer within a predetermined length. The phase of the signal of the RF band is shifted by adjusting the distance between the second and third conductive layers without using a separate RF device, thereby significantly reducing the manufacturing cost for the phase shifter.
    • 一种移相器,其使用布拉格光栅并且相对于RF频带中的输入信号具有可调谐相移功能,而不使用单独的RF器件。 移相器包括电介质层,第一导电层,沿电介质层纵向形成在电介质层的上表面上,以便为输入信号提供信号路径;第二导电层形成在下部的第一端 电介质层的表面,以沿着电介质层纵向形成布拉格光栅;第三导电层,形成在电介质层的下表面的第二端,与第二导电层成一直线,以便沿着第二导电层纵向形成布拉格光栅 电介质层和用于在预定长度内调节第二导电层和第三导电层之间的距离的移动单元。 RF带的信号的相位通过调整第二和第三导电层之间的距离而不使用单独的RF器件来移动,从而显着降低了移相器的制造成本。