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Broadband coplanar waveguide‐fed stub loaded pot shape E‐textile antenna equipped with perfect electric conductor
Author(s) -
Shah Arpan,
Patel Piyush
Publication year - 2021
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22591
Subject(s) - coplanar waveguide , ground plane , perfect conductor , stub (electronics) , materials science , conductor , monopole antenna , patch antenna , radiation pattern , bandwidth (computing) , optics , acoustics , antenna (radio) , electrical engineering , physics , engineering , telecommunications , microwave , composite material , scattering
In this paper, a coplanar waveguide (CPW) fed pot‐shaped electronic textile (E‐textile) antenna aided by rectangular ring ground plane has been proposed. The textile patch in pot form is designed by cutting triangular slots on the non‐radiating edges of the rectangular patch, which yields a broadband of 6.45 GHz. The measured antenna impedance bandwidth is from 2.15 to 8.6 GHz with a peak gain of 10.7 dB on fabricated human tissue muscle equivalent phantom model. The proposed antenna exhibits a broadside radiation pattern from 2.15 GHz to less than 6 GHz and conical radiation pattern from 6 GHz to 8.6 GHz covering wide impedance matching bandwidth (S 11 ≤ −10 dB) of 120% for dual‐mode off and on‐body communication. In CPW fed technique, the back radiation from the antenna to on body is reduced by using a perfect electric conductor. For wearable applications, considering human safety concern the specific absorption rate levels are maintained, that is less than 1.6 W/kg limit over the operating bandwidth according to IEEE C95.1‐1999 standard averaged over 1 g of tissue model.