Affiliations: [a] Department of Information Technology, Bannari Amman
Institute of Technology, Tamil Nadu, India | [b] Department of Electronics and Communication
Engineering, Bannari Amman Institute of Technology, Tamil Nadu, India
Correspondence:
[*]
Corresponding author: Poongodi Chenniappan, Department of
Information Technology, Bannari Amman Institute of Technology, Tamil Nadu,
India. Tel.: +91 944 249 4115; E-mail: poongi_cj@yahoo.co.in
Abstract: A dual resonant G shaped and U shaped metamaterial structure with
dipole antenna is designed, fabricated on FR4 substrate and measured using
Agilent network analyzer. The metamaterial based loading creates additional
resonance, so this proposed antenna effectively covers both 2.4 GHz and 5.8 GHz
bands. The return losses of the measured results are in agreement with
simulated results, the measured S parameters and simulated radiation pattern
showed that the proposed design is suitable for WLAN frequency regions. The
measured return loss (S parameter) of G shaped metamaterial based dipole is
−21.45 dB at 2.4 GHz and simulated return loss is −21.61 dB at 5.2
GHz. The measured return loss of U shaped metamaterial is −26.11 dB at
2.4 GHz and second simulated resonance frequency occurs at 5.8 GHz at the
return loss value of −23.96 dB which is most suitable for wireless LAN
application.
Keywords: Printed dipole antenna, metamaterial, WLAN, substrate, gain, radiation pattern
