Improved Performance of Double-T Monopole Antenna for 2.4/5.6 GHZ Dual-Band Wlan Operation Using Artificial Magnetic Conductors

Abstract

Abstract-A novel artificial magnetic conductor (AMC) structure for realizing gain enhancement of a double-T monopole antenna for 2.4/5.6 GHz dual-band WLAN operation is presented. First, an initial AMC unit cell is proposed, and a 2 × 5 array of this unit cell is placed behind a double-T monopole antenna as a ground plane, then the AMC structure is modified and improved to achieve better performance. Briefly, more than 4 dB gain improvement and other desirable characteristics including suitable radiation patterns and adequate bandwidths are reported from the simulation results of the final designed structure, and the simulation is performed by CST MWS 2014 in any of the mentioned frequencies. Finally, the validity and applicability of this design are demonstrated through experimental results of the fabricated antenna.

Design of Compact Uwb Mimo Antenna With Enhanced Bandwidth

“…One of them is by inserting slots in the ground surface [2,3]. The resonance of the slot combines with the resonance frequency of the antenna which enhances the bandwidth of the proposed structure [4,5]. Different patch structures like Koch geometry [6], hexagonal shaped [7], lotus shaped [8], and crescent ring [9] are used to attain better impedance [10,11] matching over a wider bandwidth.…”