Dual Band Monopole Antenna for Wireless Communications

Abstract

Dual band antennas are used in many applications like in cellular phones, in laptop for wireless printer and modem connections.This paper discusses a dual monopole Microstrip antenna configuration for dual frequency coverage at 1800MHz for mobile communication and at 2400MHz for wireless LAN applications.The antenna consists of two monopoles of different stems printed on a FR4 substrate (1.6 mm thickness) which has a dielectric constant of 4.4.More than 1500 iterations have been carried out during simulation stage to yield the optimized performance characteristics for resonant frequency and return loss at both the above frequencies.Fairly good return losses and radiation pattern response of the proposed dual monopole dual frequency antenna indicates that this antenna is well suited for the applications intended.