Open AccessSlot dipole antenna with single‐ and dual‐band tuning characteristic
Author(s) -
Idris I.H.,
Hamid M.R.,
Jamaluddin M.H.,
Rahim M.K.A.,
Kelly J.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.1271
Subject(s) - dipole antenna , antenna (radio) , multi band device , dual (grammatical number) , slot antenna , dipole , antenna measurement , loop antenna , electronic engineering , physics , electrical engineering , acoustics , telecommunications , computer science , optics , coaxial antenna , engineering , art , quantum mechanics , literature
A slot dipole antenna with a reconfigurable operating frequency is presented. The antenna comprises two pairs of slot arms. Each arm incorporates a number of varactor diodes. The antenna is capable of operating in single‐band or dual‐band mode. In each case, the location of these bands can be altered by varying the voltage applied to the varactor diodes. The antenna can be tuned over a wide frequency range, namely 1.5–4.5 GHz (i.e. a ratio of 3:1). The antenna is potentially useful for cognitive radio application, particularly in a small base station or access point terminal.