Low-cost FM solutions from suppliers including Silicon Labs as well as Phase Shift Keying , Frequency Shift Keying , and simple carrier On/Off Keying.
The wide range of RF protocol choices available to embedded developers makes the already complex choice of antennas that much more difficult.
The ever-improving functionality of modern smartphones, pods, tablets, and PCs is a testament to the designer's ability to do more in less space. However, as silicon geometries get smaller, sensitivity to noise can get higher.
Many wireless links, such as phones and Wi-Fi, are bi-directional and can even be full duplex. However, many applications exist where transmit only is all that is needed for a given design and application.
Radio-frequency identification (RFID) design presents unique challenges to engineers looking to build low-cost, robust designs able to meet a broad range of requirements.