Guest Editorial Special Issue on Antenna Design and Integration in Smart Sensors

The nine papers in this special section focus on the topic of antenna design and integration in smart sensor technologies. Antennas are key components in wireless sensors and sensor networks. Efficient, low loss, compact antennas are essential for such networks. The integration of the antenna in the sensor and the in-situ operation of the antenna in the sensor's environment are important practical considerations in the design of the antenna. Low loss is especially important for sensors operating in locations that are difficult to access as the antenna may form part of a wireless power transfer system to recharge the sensor battery. The papers in this Special Issue are divided into three groups: papers presenting general antennas for sensors, application-oriented papers, and integration technology papers.