Open AccessFrequency‐tunable patch antenna with liquid‐metal‐actuated loading slot
Author(s) -
Moorefield M.R.,
Gough R.C.,
Morishita A.M.,
Dang J.H.,
Ohta A.T.,
Shiroma W.A.
Publication year - 2016
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.2015.3896
Subject(s) - ground plane , patch antenna , microstrip antenna , materials science , slot antenna , bandwidth (computing) , acoustics , fluidics , optoelectronics , microstrip , antenna (radio) , electrical engineering , optics , physics , engineering , telecommunications
A frequency‐tunable microstrip patch antenna with a liquid‐metal‐actuated loading slot is presented. The electrical length of the loading slot located beneath the resonating patch is altered by filling and evacuating liquid metal from fluidic channels along the ground plane. The slot reactively loads the antenna, altering the resonant frequency as its length is changed. Frequency tuning is achieved from 1.85 to 2.07 GHz, corresponding to an 11.2% tuning bandwidth.