迈睿科技|专利技术系列解读

  A microstrip mixer,tadapted for receiving a local oscillator signal and a feedback signal and outputting an intermediate-frequency signal corresponding to the frequency difference between the local oscillator signal and the feedback signal,comprising:two mixer tubes, wherein an end of both said mixer tubes are grounded; and a microstrip mixing line, comprising a first microstrip arm and a second microstrip arm integrally extended from said first microstrip arm and having a shared port, a mixing output port, and a localoscillator signal input port, wherein said local oscillator signal input port is electrically connected with said shared port through said first microstrip arm and electrically connected with the other endof one of said mixer tubes through said shared port, wherein said local oscillator signal input port is electrically connected with said mixing output port through said second microstrip arm and electrically connected with the other end of the other said mixer tube through said mixing output port,such that when a local oscillator signal is input through said local oscillator signal input port and a feedback signal is input through said shared port, so as to allow the high frequency feedback signal and local oscillator signal output from said shared port and said mixing output port to said mixertubes to be conducted to the ground and allow the intermediate-frequency signal corresponding to the frequency difference of the local oscillator signal and the feedback signal to be extracted. 

抗干扰振荡电路     

本发明提供一种天线，包括一参考地和至少一辐射源，其中所述辐射源被相邻地设置于所述参考地，以在所述辐射源和所述参考地之间形成一辐射缝隙，其中所述辐射源被电气连接于所述参考地以使所述辐射源接地，从而使所述天线的频宽变窄。当一电磁激励信号自所述辐射源的一馈电点被接入时，所述天线的频宽变窄可以防止所述天线接收或产生的电磁波信号受到附近的相邻频段的电磁辐射频率或杂散辐射频率干扰。 

微波多普勒探测模块

本实用新型提供一种微波多普勒探测模块，其中所述微波多普勒探测模块包括一电磁反射面和与所述电磁反射面相间隔地被设置的至少一对对偶耦合极子，其中一对所述对偶耦合极子具有一第一馈电端和一第二馈电端并自两所述馈电端分别延伸有一第一辐射源极和一第二辐射源极，其中所述第一馈电端和所述第二馈电端相互靠近，并当所述第一辐射源极和所述第二辐射源极分别于所述第一馈电端和所述第二馈电端被同一激励信号馈源馈电时，所述第一辐射源极和所述第二辐射源极的电流与电位分布能够以所述第一馈电端和所述第二馈电端的连线的中点呈对偶分布状态而以对偶方式耦合，降低了对所述微波多普勒探测模块的尺寸要求，并能够避免形成探测死区。