A Stacked Microstrip Patch Antenna With Fractal Shaped Defects

Abstract

In this paper, a novel type of stacked microstrip patch antenna is presented in which fractal shaped defects have been excoriated from the patch surfaces. The antenna has been designed for dual band operation at the WLAN 2.4 GHz and 5.8 GHz frequency bands and size reduction for both the stacked patches is achieved due to the use of fractal shaped defects. The antenna was simulated using CST Microwave Studio 2010 and optimized using Particle Swarm Optimization (inbuilt in CST). The fabricated antenna's measurement results were found to be in good agreement with the simulated results.

Effect of FSS ground plane on second iteration of hexaflake fractal patch antenna

“…Fractal structures are used to modify a simple patch structure to enhance bandwidth, multiband operation [3], reduce patch resonance frequency and thus to decrease size [4], [5] for conformal applications.…”

Design and Development of Coax-Fed Electromagnetically Coupled Stacked Rectangular Patch Antenna for Broad Band Application

“…Stacked patch antennas have been investigated by several researchers reported in [15][16][17][18][19][20][21][22][23][24]. Among them, most of the articles [15][16][17][18][19][20] are experiment based, and some of the articles [21][22][23] are based on numerical methods.…”

“…Among them, most of the articles [15][16][17][18][19][20] are experiment based, and some of the articles [21][22][23] are based on numerical methods. The useful parameters of a probe-fed electromagnetically coupled stacked rectangular patch antenna (PFEMCSRPA) are computed by numerical techniques [21][22][23] and also by commercial software [25].…”

Pythagoras Tree: A Fractal Patch Antenna for Multi-Frequency and Ultra-Wide Bandwidth Operations

“…There are antennas which show dual band [1,2] behavior by using techniques such as slots [3], arrays [4], etc. The recent work done is on the stacked patch antennas with U-slots and fractal defects [13] along with the full ψ-shaped and half ψ-shaped microstrip patch antennas [5], but having more than two or three frequency band operations is difficult by just using slots, so today a new technique is used for such applications, i.e., the use of fractal geometries [6] instead of normal rectangular or square patches. Today, fractal geometries due to their space filling properties are widely used in miniaturization along with other advantages as multiband operation, impedance matching [7,8,14].…”