Electronic circuits behave very differently at high frequencies. This is mainly due to a change in the behavior of the passive components (resistors, inductors, and capacitors).
Flex PCB boards or flexible printed circuit boards, as the name suggests, carry out the function of regular PCB boards while being physically flexible.
Low loss PCBs are circuit boards specially designed for reduced attenuation and losses due to the PCB's electrical, thermal, and mechanical properties.
