Abstract:
Our project “Compact Slotted Microstrip Multiband Patch Antenna “aims to incorporate
design of a multiband antenna with slotted monopole patch for wireless communication.
The designed antenna makes use of open complementary split-ring resonators (OCSRRs)
to obtain multiple bands covering Wi-Max (3.3-3.8GHz), Wi-Fi (4.9-5.9GHz) and PAN
(2.4-2.48GHz) however the PIN diodes can be used depending upon their ON and OFF
state, acting as a series or parallel RLC circuit to provide reconfigurability. The OCSRRs
act as high impedance elements at their resonant frequencies when modeled as parallel
circuit. Multiple operative sections can be attained in the monopole patch of the antenna
by placing the OCSRRs at calculated distance. The principal operating frequency of the
fabricated antenna is proportional to the length of the patch while the additional
resonance frequencies are determined by their distance from OCSRRs. Use of coplanar
waveguide structure optimized the design by making it easy to fabricate and compact
which made it facile to integrate with other devices to meet the modern day
communication requirements. All frequency bands exhibit similar radiation
characteristics. The final results obtained are consistent with the simulated data and a
good return loss with positive gain of the antenna is observed. The antenna can be made
reconfigurable by using PIN diode in OFF or ON state to convert operation of antenna
from triple band to dual band.
