@article{da silva_campos_guerra_da silva_2022,  title={Radiation Efficiency of an Electrically Small Dual-band UHF Microstrip Patch Antenna Using Wheeler Cap Method},  volume={21},  ISSN={2179-1074},  url={https://doi.org/10.1590/2179-10742022v21i1253618},  DOI={10.1590/2179-10742022v21i1253618},  number={1},  journal={Journal of Microwaves, Optoelectronics and Electromagnetic Applications},  publisher={Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo},  author={da Silva, W. G. and Campos, A. L. P. S. and Guerra, J. R. F. and da Silva, I. B. T.},  year={2022},  month={Jan},  pages={1–10} }