This white paper provides a thorough review of how the RF performance of the antenna impacts the power efficiency of a wireless device. This in-depth discussion explains the insights of the antenna design and selection guideline during the product development phases of the devices.

We start with the introduction of one of the most fundamental equations in antenna theory, the Friis Transmission Formula, and how it links the RF performance of the antennas with the receive signal strength and the range of the wireless link. Guidelines on antenna design and selection are then provided.