High-frequency filter, complex electronic component using the same, and portable radio apparatus using the same
    2.
    发明授权
    High-frequency filter, complex electronic component using the same, and portable radio apparatus using the same 有权
    高频滤波器,使用其的复杂电子部件,以及使用该高频滤波器的便携式无线电装置

    公开(公告)号:US06429753B1

    公开(公告)日:2002-08-06

    申请号:US09488975

    申请日:2000-01-20

    IPC分类号: H01P1213

    CPC分类号: H01P1/203

    摘要: A high-frequency filter 10 serving as a bandpass filter has three transmission lines SL11 to SL13 side-coupled in three stages. The transmission lines SL11 to SL13 are respectively connected in parallel to capacitors C11 to C13. One end of the input transmission line SL11 is connected to an input terminal Pi through an input capacitor C14. One end of the output transmission line SL13 is connected to an output terminal Po through an output capacitor C15. The other ends of the transmission lines SL11 and SL13 are connected and the connection point is connected to the ground through an inductor Lg for forming a pole. One end of the transmission line SL12 is connected to the ground.

    摘要翻译: 用作带通滤波器的高频滤波器10具有三个三相侧耦合的传输线SL11至SL13。 传输线SL11至SL13分别与电容器C11至C13并联连接。 输入传输线SL11的一端通过输入电容器C14连接到输入端子Pi。 输出传输线SL13的一端通过输出电容器C15连接到输出端子Po。 传输线SL11和SL13的另一端被连接,并且连接点通过用于形成极的电感器Lg连接到地。 传输线SL12的一端连接到地面。

    Receiving module and receiver
    4.
    发明授权
    Receiving module and receiver 失效
    接收模块和接收器

    公开(公告)号:US06711395B1

    公开(公告)日:2004-03-23

    申请号:US09694423

    申请日:2000-10-23

    IPC分类号: H04B126

    摘要: A receiving module and a TDMA-system receiver are adapted to broadening of bands of received signals and low frequencies of intermediate frequency signals. These apparatuses can be made compact and contribute to cost reduction. The receiving module is constituted of a low-noise amplifier, a high frequency LC filter, a Gilbert-cell type mixer, and baluns. A signal received by an antenna is amplified by the low-noise amplifier and is passed through the LC filter. After that, the signal is mixed with a local oscillation signal by the Gilbert-cell type mixer to be converted into an intermediate frequency signal.

    摘要翻译: 接收模块和TDMA系统接收机适用于加宽接收信号的频带和中频信号的低频。 这些装置可以制造得紧凑并有助于降低成本。 接收模块由低噪声放大器,高频LC滤波器,吉尔伯特单元型混频器和平衡 - 不平衡变换器构成。 由天线接收的信号由低噪声放大器放大并通过LC滤波器。 之后,该信号与Gilbert-cell型混频器与本地振荡信号混合,以转换成中频信号。

    High-frequency composite component and portable wireless device incorporating the component
    5.
    发明授权
    High-frequency composite component and portable wireless device incorporating the component 有权
    高频复合组件和携带无线设备的组件

    公开(公告)号:US06700792B1

    公开(公告)日:2004-03-02

    申请号:US09505258

    申请日:2000-02-16

    IPC分类号: H05K103

    摘要: A high-frequency composite component can achieve reduction in size and weight, while providing high performance. A portable wireless device incorporates the high-frequency composite component, including a multi-layer substrate, with a low noise amplifier LNA and a band pass filter BPF constituting parts of a high-frequency circuit, with an input terminal, an output terminal, and control terminals on the substrate. The low noise amplifier LNA is constituted of transistors, an inductor, capacitors, and resistors. The band pass filter BPF is constituted of strip lines, an inductor, and capacitors. The low noise amplifier LNA and the band pass filter BPF are connected with each other within the substrate via a matching capacitor. The amplifier ground and filter ground are separated within the substrate and connected respectively to separate ground terminals on the substrate. In another embodiment, the high-frequency composite component may include a mixer and a high-pass filter integrated with a multi-layer substrate.

    摘要翻译: 高频复合组件可以实现尺寸和重量的减小,同时提供高性能。 一种便携式无线设备将包括多层基板的高频复合元件与构成高频电路部分的低噪声放大器LNA和带通滤波器BPF结合,具有输入端子,输出端子和 控制端子在基板上。 低噪声放大器LNA由晶体管,电感器,电容器和电阻器构成。 带通滤波器BPF由带状线,电感器和电容器构成。 低噪声放大器LNA和带通滤波器BPF通过匹配电容器在衬底内彼此连接。 放大器接地和滤波器接地在衬底内分开并分别连接到衬底上的分离的接地端子。 在另一个实施例中,高频复合元件可以包括与多层基板集成的混合器和高通滤波器。