Microwave amplifier circuit

专利名称：Microwave amplifier circuit

发明人：Tsukahara, Yoshihiro

申请号：EP95110020.5

申请日：19950627

公开号：EP0695029A1

公开日：

19960131

专利内容由知识产权出版社提供

专利附图：

摘要：A microwave amplifier circuit comprises a divider having an input end being

connected to an input terminal of the amplifier circuit, dividing an input signal applied to the input terminal into two, and outputting the divided signals to first and second output ends, respectively, first and second microwave amplifiers having input ends being

respectively connected to the first and second output ends of the divider, a mixer having first and second input ends and an output end, in which the first input end is connected to the output end of the first microwave amplifier through a 90° phase shifter, the second input end is connected to the output end of the second microwave amplifier, and the output end is connected to the output terminal of the microwave amplifier circuit. Therefore, the doublen component of the output signal can be suppressed by mixing the amplified signal which has shifted to the phase of the doublen component by 180° and the amplified signal having the same phase as input signal. As a result, in the microwave amplifier circuit, the passing phase of the signal passing through the amplifier circuit does not vary, the gain at outside the band, i.e., the gain at the high frequency region is suppressed, and the above-described IM3 is suppressed.

申请人：MITSUBISHI DENKI KABUSHIKI KAISHA

地址：2-3, Marunouchi 2-chome Chiyoda-ku Tokyo 100 JP

国籍：JP

代理机构：KUHNEN, WACKER & PARTNER

更多信息请下载全文后查看