Dual-Band Antenna With Fractal-Based Ground Plane for WLAN Applications

A Low Elevation Angle Conical Beam Antenna for Caps-Based Vehicle Monitoring System

“…A monopole is a common antenna capable of producing omnidirectional conical beams, whose performance can be improved by changing the shape or characteristics of the ground plane. For example, ground planes in modified solid or in defected shape [8][9][10][11] are used to realize multiple resonances; the electrical bandgap (EBG) [12], fractal or quasi-fractal [ 13,14] and band-notch structures [15] can also be used in the ground plane for bandwidth enhancement, resonance flexibility and miniaturization.…”

Modified Sierpinski Carpet Fractal Antenna for Wireless Communication

“…The standard geometries that follow selfsimilarity property are Sierpinski Carpet and Sierpinski Gasket [6]. Sierp inski Gasket has n iterations which results into number of operations bands [7]. Here the height of triangle of first iteration is twice that of the triangle in second iteration.…”

A Microstrip Fed Patch Antenna with Two Parasitic Invert L Stubs for Dual-Band WLAN Applications

“…Since WLAN antennas are usually required on broad bandwidth and small antenna size, researchers have studied monopole structures to generate dual resonant modes [1][2][3][4] and other useful techniques [5][6][7][8][9]. In [1], the double-T monopole antenna has the bandwidth with narrow margin at 5.2-GHz band and do not cover the whole 5-6 GHz band.…”

“…A rectangular patch and a parasitic circular patch were used in [7] to generate two modes. In [8], the WLAN antenna use a fractal ground plane, thus, the antenna size is large. A WLAN antenna with double dipole and long length was introduced in [9].…”