Hi All,

Is this a SMD circulator are some kind or similar in function component, to keep RF flowing in on direction, as in to prevent reflections from running back into circuit?

 

Is it part of a kid's toy or part of a complex high-tech computerized system? Without a lot more information, no one is likely to hazard a guess!

 

C band block upconverter. LMX PLL, balun, then this