Dual Band Aperture Coupled Stacked Microstrip Patch Antenna for WLAN

Abstract

This paper presents a dual band aperture coupled stacked microstrip antenna with the introduction of an air gap 3 mm between the ground plane and the upper layer substrate for WLAN applications. The nominal antenna has -10 dB return loss bandwidth of 134.8 MHz and 384.9 MHz at lower band resonant frequency of 3.905 GHz and upper band resonant frequency of 5.36 GHz respectively. The gain of the antenna is greater than 5 dB, also the directivity is greater than 5 dBi and VSWR value is less than 2 for both the operating frequencies, which makes it a suitable choice to be used at the frequencies bands of WLAN.

Design of Microstrip Antennas Array for Wireless Applications by Using HFSS

“…X band is used in radar applications including continuous-wave, pulsed, single polarization, dual-polarization, synthetic aperture radar, and phased arrays. In Ireland, Libya, Canada, the X is used for terrestrial broadband [1,5,6]. The proposed antenna is designed by the substrate material FR-4 and its dielectric constant 4.4 and height 1.6mm.…”

Low-Cost Dual-Band Circularly Polarized Switched-Beam Array for Global Navigation Satellite System

“…the antenna array to operate at two or more frequency bands simultaneously has numerous benefits; the antenna can be used for more than one application at the same time, signal-to-noise ratio (S/N) can be improved through frequency diversity, measurement accuracy can be improved through differential measurements and system (effective) bandwidth can be increased by receiving the signal at more than one frequency [8], [9]. Therefore, combining the benefits of multiple frequency operation along with switched-beam capability can result in a very attractive antenna for small satellites.…”