In a board which incorporates a Sub-1GHz transceiver (CC1310) I want to add a chip antenna. I found out that this anntena suits very much to my chip.
https://www.johansontechnology.com/datasheets/antennas/0900AT43A0070.pdf
I scrutinized the datasheet but I wasn't able to find in what rules the antenna's tail trace must be routed. There's a recommendation layout at the page 2 of 8 and an alternative of it at page 7 of 8. But, regarding theirs shape, I can't spot any relation between them. Besides that, the length doesn't seem to be the same.
Although, I searched a lot through the internet, I haven't found anything regarding that "tail trace". How am I suppose to re-route that tail in my board if I can't afford the space to make it looks exactly like the datasheet?
Has anyone ever seen similar design like this?