High frequency circuit, semiconductor device, and high frequency power amplification device
    12.
    发明授权
    High frequency circuit, semiconductor device, and high frequency power amplification device 有权
    高频电路,半导体器件和高频功率放大器件

    公开(公告)号:US07679438B2

    公开(公告)日:2010-03-16

    申请号:US12118803

    申请日:2008-05-12

    IPC分类号: H03F3/68

    摘要: A small, high performance, multifunctional high frequency circuit that is multiband and multimode compatible reduces loss from a switch formed on the output side of a final stage amplification unit. The final stage amplification unit power amplifies an input signal and outputs an amplified signal. A first matching circuit impedance converts the amplified signal input thereto at a first input impedance, and outputs a first impedance-converted signal at a first output impedance. A control unit that generates a control signal denoting signal path selection information. A switch unit selects one of at least two signal paths based on the control signal, passes the first impedance-converted signal at an on impedance through the selected path, and outputs the pass signal. A second matching circuit impedance converts a pass signal input thereto at a second input impedance, and outputs a second impedance-converted signal at a second output.

    摘要翻译: 多频和多模兼容的小型,高性能,多功能高频电路可以减少在最终级放大单元输出侧形成的开关损耗。 最终级放大单元功率放大输入信号并输出​​放大信号。 第一匹配电路阻抗以第一输入阻抗转换输入到其的放大信号,并输出第一输出阻抗的第一阻抗转换信号。 控制单元,其生成表示信号路径选择信息的控制信号。 开关单元基于控制信号选择至少两个信号路径中的一个,将通过所选路径的导通阻抗的第一阻抗转换信号传递,并输出通过信号。 第二匹配电路阻抗以第二输入阻抗转换输入到其的通过信号,并在第二输出端输出第二阻抗转换信号。

    Radio frequency device
    13.
    发明授权
    Radio frequency device 有权
    射频设备

    公开(公告)号:US07190982B2

    公开(公告)日:2007-03-13

    申请号:US10764537

    申请日:2004-01-27

    IPC分类号: H04M1/00

    摘要: In the present radio frequency device, a radio frequency circuit part and a transmission line are disposed on the top surface of a circuit board on the surface of which a ground pattern is provided, and a metal shielding cap is fixed to the circuit board so as to cover the radio frequency circuit part and the transmission path. The metal shielding cap includes: a top plate disposed above the radio frequency circuit part and substantially parallel to the circuit board; a grounded side wall being provided so as to hang down from a part of an edge of the top plate, having a spring property and being joined to the ground pattern of the circuit board, and a side wall is open except for the grounded side wall.

    摘要翻译: 在本射频装置中,射频电路部分和传输线设置在电路板的设置有接地图案的表面的顶表面上,金属屏蔽帽固定到电路板上,以便 以覆盖射频电路部分和传输路径。 金属屏蔽盖包括:顶板,设置在射频电路部分上方并且基本上平行于电路板; 接地侧壁设置成从顶板的边缘的一部分悬挂起来,具有弹簧特性并且接合到电路板的接地图案,并且侧壁是开放的,除了接地的侧壁 。

    Integrated circuit testing device
    16.
    发明授权
    Integrated circuit testing device 失效
    集成电路测试装置

    公开(公告)号:US5412258A

    公开(公告)日:1995-05-02

    申请号:US796585

    申请日:1991-11-22

    摘要: An integrated circuit testing device, including a small test signal generator for generating a small test signal having a small amplitude corresponding to a test signal supplied to an input terminal of a target integrated circuit to be tested; a test signal supply circuit for amplifying the small test signal generated from the small test signal generator to obtain the test signal having a predetermined power and timing, and for supplying the test signal to the input terminal of the target integrated circuit to be tested; and a controller for setting a rise time of the test signal and a fall time of the test signal at a predetermined time by adjusting the amount of power of the test signal supplied from the test signal supply circuit.

    摘要翻译: 一种集成电路测试装置,包括:小型测试信号发生器,用于产生具有对应于被提供给待测试的目标集成电路的输入端的测试信号的小振幅的小测试信号; 测试信号供给电路,用于放大从小型测试信号发生器产生的小测试信号,以获得具有预定功率和定时的测试信号,并将测试信号提供给待测试的目标集成电路的输入端; 以及控制器,用于通过调整从测试信号提供电路提供的测试信号的功率量,在预定时间设置测试信号的上升时间和测试信号的下降时间。