Amplifier with feedback bridge
    36.
    发明公开
    Amplifier with feedback bridge 有权
    VerstärkermitRückkopplungsbrückenschaltung

    公开(公告)号:EP1744604A1

    公开(公告)日:2007-01-17

    申请号:EP05291510.5

    申请日:2005-07-12

    Applicant: ALCATEL

    Abstract: An amplifier, in particular for RF-applications, comprises a circuit board (2), at least one amplifier stage with at least one transistor package (8) arranged on the circuit board (2), and a feedback path (12) around the at least one transistor package (8), said feedback path (12) comprising a feedback element (15) with at least one capactive (C) element for blocking the flow of direct current through the feedback path (12) and preferably further comprising at least one inductive (L) and/or resistive element (R). In order to reduce negative effects on the performance of the amplifier due to long printed feedback lines, the feedback path (12) in an amplifier according to the invention is formed of a feedback bridge (9) comprising two feedback lines (13, 14) extending out of the plane of the circuit board (2) from two contact flags (10, 11) of the transistor package (8), and the feedback element (15) bridging over the transistor package (8) between the two feedback lines (13, 14).

    Abstract translation: 特别是用于射频应用的放大器包括电路板(2),至少一个具有布置在电路板(2)上的至少一个晶体管封装(8)的放大器级,以及围绕 至少一个晶体管封装(8),所述反馈路径(12)包括具有至少一个负载(C)元件的反馈元件(15),用于阻断通过所述反馈路径(12)的直流电流,并且优选地还包括: 至少一个电感(L)和/或电阻元件(R)。 为了减少由于长的印刷反馈线引起的放大器的性能的负面影响,根据本发明的放大器中的反馈路径(12)由包括两个反馈线(13,14)的反馈桥(9)形成, 从晶体管封装(8)的两个接触标记(10,11)延伸出电路板(2)的平面,并且反馈元件(15)跨接在两个反馈线之间的晶体管封装(8)上 13,14)。

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