I’m posting for the first time to this forum, although I’ve been feeding a couple of years now.
After testing couple of home-made “normal” GP antennas I made from aluminium, I recently made a new bowtie antenna “drawn” to the PCB (in a bit old school way) just for fun to check if that would work ok. Since Finland isn’t necessarily the best location for tracking aircraft (it’s quite quiet here), the most of the traffic is situated mostly south. A yagi would have been quite an overshot, so I thought to try this. I know this one most probably has some issues with the impedance matching since I didn’t have time to measure the antenna with the vna or even add a sleeve balun, but it seems to perform rather ok.
While it seems to work somehow ok, I was thinking of maybe I should try also array of PCB-bowties. The problem is that I know very little about the arrays and especially phasing them correctly. I’m just wondering what would be the best approach - should I try to start with simply 2 parallel bowties (with or without some phase shifting) or straight to 4 setup with phase-shifting and 1:4 balun (using 75ohm coax though)…
Would anyone has any suggestions what to take into account with these kind of arrays?