Small Form Factor, Sub-1GHz Antennas Johanson Technology Sub-1GHz SMD antennas provide a small form factor and feature 433MHz, 868MHz, and 915MHz frequencies. Johanson Sub-1GHz antennas include ceramic chip antennas and internal SMD chip antennas. Components feature Sub-GHz wideband behavior which allows operation at both t868MHz and 915MHz simultaneously. Johanson Technology Sub-1GHz SMD Antennas are ideal for Americas/Europe/Asia Sub-GHz ISM applications such as smart home, wireless thermostats, AMR, fitness, and lighting controls.