@article{article, title = {{Compact low frequency varactor loaded tunable SRR antenna}}, url = {{}}, year = {{2013}}, month = {{1}}, author = {{Zhu S and Holtby DG and Ford KL and Tennant A and Langley RJ}}, doi = {{10.1109/TAP.2013.2239952}}, volume = {{61}}, journal = {{IEEE Transactions on Antennas and Propagation}}, issue = {{4}}, pages = {{2301-2304}}, note = {{Accessed on 2025/05/19}}}