i read the 《AN48610 - Design and Layout Guidelines for Matching Network and Antenna for WirelessUSB™ LP Family》 document, and i have some questions about it: i want to know that whether the antenna is under patent protection. i am going to use that antenna in my product, which using CYRF8935A chipset. my Technical Support recommended a few antenna to me, but the result is not good. i want to use the antenna which on the document, but am afraid of the patent problem.
do you know the antenna is under patent protection? and can i use it in my product? wish your answer. THX!
the appendixes are my product's antenna design, which Technical Support recommended to me. ANT-1 is the best i try.