Fractal antennae have very special properties: (1) They are broad band antennae, i.e. they radiate, and detect, very eeciently for a wide range of frequencies. The frequency range is speciied by the smallest and largest size present in the antenna. The radiation, and hence the detection, eeciency depends slowly on frequency between these two limits. (2) They can display considerable gain over n...

This paper presents a novel compact dual-band and dual-polarized complementary split-ring resonator (CSRR)-fed substrate-integrated waveguide (SIW) cavity-backed fractal patch antenna for wireless energy harvesting and communication. The proposed antenna is composed of a Giuseppe Peano fractal radiation patch with a backed SIW cavity. To enhance the bandwidth and minimize the dimensions, the CS...

In this paper the design of compact broadband Koch island fractal patch antenna for bandwidth improvement and antenna size reduction in a single design at 2.4GHz is proposed. The suspended technique is used to improve bandwidth whereas for size reduction the electrical length of the conducting patch has been increased. By space-filling property of fractal geometry, this antenna reveals lower re...

A circularly polarized fractal boundary microstrip antenna is presented. The sides of a square patch along xaxis, yaxis are replaced with Minkowski and Koch curves correspondingly. By using the fractal curves as edges, asymmetry in the structure is created to excite two orthogonal modes for circular polarization (CP) operation. The indentation factors of the fractal curves are optimized for pur...

This paper introduces a new tri-wideband fractal antenna for use in wireless communication applications. The manufactured developed has Sierpinski hexagonal-shaped radiating element and partial ground plane loaded with three rectangular stubs slits. investigated small footprint of 0.19λ0 × 0.24 λ0 0.0128 improved bandwidth gain. According to the measurements, designed resonates throughout frequ...

This paper presents the comparison of existing fractal antennas with the proposed fractal antenna on the basis of performance parameters such as return loss and gain. Proposed antenna is designed on FR4 glass epoxy substrate with thickness 1.6mm and dielectric constant 4.4. The HFSS V13 software is used to design and simulate the proposed fractal antenna. By observing the simulated results of p...

In this paper, a fractal photonic crystal fiber (F-PCF) based on the 1st iteration of Koch fractal configuration for optical communication systems is presented. Complex structure of fractal shape is build up through replication of a base shape. Nowadays, fractal shapes are used widely in antenna topics and its usage in PCF has not been investigated yet. The purpose of this research is to compar...

With the tremendous advancements in wireless communications, there is an increasing demand for miniature, low-cost, easy-to-fabricate, multiband and wideband antennas for use in commercial communications systems. As a part of an effort to further enhance modern communications systems technology, researchers have been studying different approaches for creating novel and innovative antennas. The ...