About 10 meters from my home router(half is walled)
X-Y, Y-Z, X-Z direction for 10 times test, average value:

YAGEO:CAN4311153002451K(4dbi), 5.3 x 2.0 -> -70dBm
Supermax: IAN0201(2dbi), 5.2 x 2.0 -> -72dBm
Sunlord: SLDA72-2R470G-S1(2.5dbi) 5.0 x 2.0 -> -68dBm
Rainsun: AN3216-245 3.2×1.6(0.5dbi) -> -72dBm
????: PCB IPX antenna -> -80dBm

So, after that test, remove the IPX for more clearance zone is a better choice.