CPW antennas on custom PCB

[Army.Syper]

I need help about interface this uwb cpw antenna on my pcb. My application is a based on uwb with angle of arrival estimation, I already tested this antennas with SMA and they work very well, now I'm trying to put it on a single PCB.
Is there any guidelines that must be followed ?

 

[oceanblack]

Firstly, you need to know the thickness and Dk of PCB you are using, which is the same with thesis? If not, the antenna frequency will shift.
Secondly, the isolation between these two antenna needs to be considered. Otherwise, they will interferene each other to impact accuracy.

For you reference, I used this SMD Ultra-wideband antenna from this company, this antenna has very small form factor with good efficiency.
They also provide layout review and recommendations as well to ensure the antenna performance is optimal in the real application.

UWB antenna ultra wideband antenna antenna UWB

LK1820201 is a SMD Ultra-wideband antenna or UWB antenna with cutting-edge technology that allows it to support UWB (Ultra-Wide band) channel 5, 6, 7, 8 and 9.

www.leankon.com

 

[D.A.(Tony)Stewart]

Dk tolerance, routing, enclosure plastic Dk , gap , thickness, hand positions will all shift resonances more than 10% so get to know how to control all the variables for the real world to the tolerance you specify. Expect to have more than 1 iteration. Monopoles are much more sensitive.

Test the sensitivities to each variable on your sample and figure out how to specify/calibrate traces and thickness to Dk tolerances of everything.

 

[volker@muehlhaus]

For small antenna PCB the feed coax is part of the radiating structure, unless you have used ferrite bead to block that.

And now your ground in the large PCB is rather different from the ground in your SMA version (small PCB + coax cable as external ground). Your previous simulations were pretty close, so I would trust simulation again and check the PCB mounted situation.