Open AccessAgITO for high‐performance semi‐transparent wideband antenna applications
Author(s) -
Eltresy N.A.,
Abd Elhamid A.M.,
Elsheakh D.N.,
Abdallah E.A.,
Elhennawy H.M.
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2020.1030
Subject(s) - wideband , antenna (radio) , electronic engineering , computer science , telecommunications , engineering
Semi‐transparent wide‐band coplanar waveguide slot antennas based on commercial indium tin oxide (CITO) and silver sandwiched indium tin oxide (AgITO) conductor thin films on soda‐lime glass substrate are proposed. RF/DC sputtering was functionalised to deposit the AgITO and obtaining sheet resistance ( R s ) below 1 Ω/Sq. coupled with ∼52% transparency. The associated three thin films (AgITO) deposition parameters were optimised using bandgap engineering to obtain a low ohmic interfacial contact resistance. The ultra‐thin AgITO and CITO conductor films impact on the proposed antennas bandwidth and gain is introduced. The two antennas were fabricated and measured. The AgITO presented a maximum gain of 3 dBi against −2.9 dBi for CITO antenna at 5.8 GHz coupled with a nearly stable gain over a wide band of about 4 GHz.