首页>
外国专利>
compact symmetrierglied with barrier for simultaneous operation 802.11a and 802.11b
compact symmetrierglied with barrier for simultaneous operation 802.11a and 802.11b
展开▼
机译:紧凑的对称设计,带有屏障,可同时运行802.11a和802.11b
展开▼
页面导航
摘要
著录项
相似文献
摘要
A balancing/unbalancing (balun) structure for operating at frequency f1 includes a microstrip printed circuit board (PCB). A balun on the PCB includes two input ports (P2,P3) coupled to a differential signal. An isolated port (P4) is connected to ground through a matched resistance. An output port (P1) is coupled to a single-ended signal corresponding to the differential signal. A plurality of traces on the PCB connect the two input ports, the load connection port and a tap point (209) to the output port. A f2 rejection filter on the PCB is wrapped around the balun and includes a first folded element (210-216) with a transmission length of lambda 2/4 and connected to the output port. A second folded element (217-221) has a transmission length of lambda 2/4 and connected to the tap point. A third folded element (204-208) connects the tap point to the output port and has a transmission length of lambda 2/4. IMAGE
展开▼