that appears to be the same as far as specs
I am in us and ordered direct to parts supplier and paid about $6 US
you want 4mm
at least 3 to5 db gain
if you do the mod you may want to scrape a bit if the plastic ribs under the area antenna sits to give a little more clearance since this is 4 vs 2mm high.
when you put top back on be careful to make sure gps wire is snug into mother board..
also use alum tape to wrap the gps wire as far as you can--no harm, no foal--
then cover with layer of tape
good luck and have fun flying.
once I change antenna the GPS lock time ( 2nd set green flash) was well under a minute and stayed locked...