Compact balun transformers
    9.
    发明公开
    Compact balun transformers 审中-公开
    小型巴伦变压器

    公开(公告)号:EP2104227A2

    公开(公告)日:2009-09-23

    申请号:EP09155884.1

    申请日:2009-03-23

    申请人: Sychip Inc.

    IPC分类号: H03H7/42 H01F17/00 H01F27/28

    摘要: Balun transformers are described wherein multiple transformer loops are implemented in a stacked design with the primary and secondary loops overlying one another. By aligning the loops in a vertical direction, instead of offsetting the loops, the area of the device is reduced. Multiple transformer loops are nested on each level, and the transformer loops on a given level are connected together using a crossover located on a different level.

    摘要翻译: 描述了多变压器变压器,其中多个变压器回路以堆叠设计实施,其中主回路和次回路彼此叠置。 通过沿垂直方向对齐环路,而不是偏移环路,设备的面积会减小。 多个变压器环路嵌套在每个层面上,并且使用位于不同层面上的交叉点将给定层面上的变压器环路连接在一起。

    Compact lumped element dual highpass/lowpass balun layout
    10.
    发明公开
    Compact lumped element dual highpass/lowpass balun layout 审中-公开
    紧凑的布局与组离散组件的高通/低通巴伦

    公开(公告)号:EP1351385A3

    公开(公告)日:2009-01-21

    申请号:EP03006894.4

    申请日:2003-03-31

    IPC分类号: H03H7/42

    CPC分类号: H03H7/42

    摘要: A circuit layout for a lumped element dual-balun (248) where the elements of the dual-balun (248) are patterned on a monolithic substrate (250) in a compact design. The dual-balun (248) includes four inductors (252, 254, 256, 258) and four capacitors (340, 342, 360, 388) electrically coupled together to provide two zero phase RF output signals and two 180° phase RF output signals. The inductors (252, 254, 256, 258) are symmetrically disposed in a rectangular area on the substrate (250). A first pair of the inductors (252, 254) is positioned at one end of the rectangular area, and a second pair of the inductors (256, 258) is positioned at an opposite end of the rectangular area. The capacitors (340, 342, 360, 388) are formed on the monolithic substrate (250) in a central circuit area (260) between the first pair (252, 254) and the second pair of inductors (256, 258). RF output lines (350, 354, 372, 390) are coupled to circuit elements in the circuit area (260) and extend out of the circuit area (260) between the first pair and the second pair of the inductors (252, 254, 256, 258).