Feed n/w for 3 element linear array

[Sri_kanth]

Hi,
I am designing a 3 element linear antenna with 1:3 power divider network for feeding. But the length of the microstrip line to the center element differs from other two elements because all three elements are in a single row, so there is a phase variation to the center element compared to other two elements. I tried to increase the center line length but there is space constraint. How can i achieve same phase to all the three elements.
Please suggest. Thank you.

 

[WimRFP]

Without knowing frequency, power and bandwidth, you may use meandering (curved zig zag shape) to create the same length. Other option is to use a CLC PI network that provides the desired additional phase shift and match at the design frequency (I used this in HF couplers to reduce size).