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Aspects of High-Q Tunable Antennas and Their Deployment for 4G Mobile Communications [Antenna Applications Corner]

Tunable antennas are very promising for future generations of mobile communications, where broad frequency coverage will be increasingly required. This article describes the design of small high quality factor (high-Q) tunable antennas based on microelectromechanical systems (MEMS) that are capable of operation in the frequency ranges of 600-960 MHz and 1,710-2,690 MHz. Some aspects of high-Q tunable antennas are investigated here through experimental measurements, and the results are presented.