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    • 4. 发明公开
    • 멀티밴드용 고주파 스위치 모듈
    • 用于多频带的无线电频率开关模块,将通用天线连接到发射和接收系统中的发射电路或接收系统中的不同通道
    • KR1020040068522A
    • 2004-07-31
    • KR1020040053285
    • 2004-07-09
    • 히다찌긴조꾸가부시끼가이사
    • 켐모치시게루와타나베미쯔히로타이히로유키타케타쯔요시타나카토시히코
    • H04B1/38
    • H04B1/005H04B1/48H05K1/0237H05K1/0298H05K1/0306H05K1/16H05K1/181H05K3/403H05K2201/10015H05K2201/10174Y02P70/611
    • PURPOSE: A radio frequency switch module for multi-band is provided to reduce the size of a dual-band cellular phone by realizing a small chip in a laminated structure. CONSTITUTION: A band separation circuit(2) is formed of filter circuits each having an LC circuit, with one end connected with a common antenna. Switching circuits switch transmission circuits and receiving circuits of transmission and receiving systems, each including switching elements and transmission lines. A laminated body includes a plurality of dielectric layers, pattern electrodes printed on the dielectric layers, a terminal electrode formed on a surface of the laminated body, and a chip element packed on a top side of the laminated body. A transmission system has a low pass filtering function provided by low pass filter circuits. The low pass filter circuit includes pattern electrodes printed on the dielectric layers. The pattern electrodes of the band separation circuit(2) and the pattern electrodes of the low pass filter circuit are individually formed in a horizontal direction of the laminated body.
    • 目的:提供一种用于多频带的射频开关模块,通过实现层叠结构中的小芯片来减小双频蜂窝电话的尺寸。 构成:带分离电路(2)由各自具有LC电路的滤波器电路形成,其一端与公共天线连接。 开关电路切换发送和接收系统的传输电路和接收电路,每个包括开关元件和传输线。 层叠体包括多个电介质层,印刷在电介质层上的图形电极,形成在层叠体的表面上的端子电极和填充在层叠体的上侧的芯片元件。 传输系统具有由低通滤波器电路提供的低通滤波功能。 低通滤波器电路包括印刷在电介质层上的图形电极。 带分离电路(2)的图案电极和低通滤波器电路的图形电极分别在层叠体的水平方向上形成。