Hi,
On Mikrotik Groove , i connected Patch aentena, if i use andrew aentena which gives me better performance ??
you have to look at antenna parameters, gain, return loss, VSWR, port isolation etc.
watch these presentations to learn about antennas:
http://www.tiktube.com/video/qEfm2hEEqnnDKpCCCpCHFsIuplInDopn=
http://www.tiktube.com/video/lHfD3eomgCKEDJLqFHDtJvmuIlmoHpJK=