weird physical phenomena in radiation pattern when extending unequal power divider

Thread Starter

yef smith

Joined Aug 2, 2020
Hello,I have built an array based on stripline feeding network with via fence as pointed by the blue arrow bellow.
Then i have extended my input by adding another corner as shown bellow in the red array.
I have just extended the line,but for some reason my radiation pattern got ruined because of this.(while my S11 is great) .
Why this could happen ?
I got assumption that maybe extended the line ruined to main power dividing of the feeding network.
But i dont know why extending an input line while keeping good S11 still ruins the power divider that its connected to it.
maybe my assumption is wrong.
is the some idea's why it could happen?