amicloud
Full Member level 2
improve coupler directivity
I design a coupler with narrow bandwidth with coupled stripline,but found the directivity is poor(about 10dB),though the VSWR is good.
I always wonder why the directivity was poor.And how to increase it ?
I design a coupler with narrow bandwidth with coupled stripline,but found the directivity is poor(about 10dB),though the VSWR is good.
I always wonder why the directivity was poor.And how to increase it ?