Frequency-agile antennas can be designed to switch between a set of discrete frequencies, or to be tuned over a continuous range of frequencies. Methods for achieving discrete or continuous frequency tuning can be grouped into three categories: mechanical actuation, tunable materials, and integrated electronic devices. Example tuning techniques in each class are presented, highlighting strengths and weaknesses of each method.
Published in:
Antennas and Propagation Magazine, IEEE
(Volume:54
,
Issue:
5
)
Date of Publication: Oct. 2012