1) Measuring antenna characteristics is beyond the scope of this forum. However from experience in IoT products, antenna performance will
be affected by (a) metallic housing, and (b) hands (e.g. remote control). Otherwise, always try to position the module in a corner with the
antenna main beam "pointing" away from the host PCB.
2) Page 6 and 7 of the module datasheet suggested some guidelines on the PCB layout.
Dear Thread Author,
For more further discussion, it would be better to contact to Cypress local sales representative and/or local FAE.
If you don't need any further technical support for this thread, please let us know.