A Wideband Fractal Planar Monopole Antenna with a Thin Slot on Radiating Stub for Radio Frequency Energy Harvesting Applications

Abstract

In this paper, for energy harvesting applications a design of a wideband planar monopole antenna is proposed using fractal geometry and inserting a thin slot on radiation patch. The proposed antenna is optimized at various stages during its design. Moreover, a parametric study is done for understanding sensitivity of important design parameters in the design process of the antenna. The designed antenna operates at 10-dB impedance bandwidth from 0.92 to 2.58 GHz (fractional bandwidth of 95%) with low profile structure and compact size of 65 × 65 × 0.8 mm 3 , acceptable return losses, stable radiation characterizes and reasonable gains. A potential application of the antenna as a receiving antenna for harvesting systems has been carried out inside the laboratory as the harvested power from ambient radiofrequency (RF) energy. This wideband antenna has a good potential to harvest RF energy of available signals in the GSM-900, GSM-1800, and Wi-Fi bands, and can be used as a part in DC power supply modules of low power sensor networks.

Optimal Node Selection for Cooperative Spectrum Sensing in Cognitive Radio Sensor Networks with Energy Harvesting

“…A wideband planar monopole antenna design was put forth (17). This design incorporates fractal geometry and integrates a slender slot on the radiation patch, intended for energy harvesting purposes.…”

Energy Harvesting from Vibrating Cantilever Structure of Different Base Materials using Piezoelectric Material: Theoretical and Experimental Approach

“…The first four modes were taken for analyzing the solution. The damping ratios considered are given in brackets (0.010, 0.013, 0.033, 0.064, 0.106) were experimentally calculated for the same dimensions reported in the literature [17]. Equation (46) becomes:…”

“…Tadi Beni et al [15,16] investigated with the help of nonlinear formulation of isotropic piezoelectric Euler-Bernoulli nano-beam formed the basis for low energy harvesting at nanolevel. Fakharian [17], designed a planar monopole antenna, a lowprofile structure with a fractal geometry based thin radiation patch material, that can operate at 10-dB impedance bandwidth from 0.92 to 2.58 GHz.…”

Design and Optimization of High-gain Series and Parallel-fed Array Antennas for Enhanced Gain and Front-to-back Ratio in X-Band Applications

“…The aforementioned attributes render them exceptionally well-suited for implementation in millimeter-wave (MMW) scenarios, outperforming preceding metal-based configurations such as four quadrant horn arrays with reflectors and waveguide slot arrays (9,10). Numerous comprehensive research studies have explored microstrip arrays, employing both parallel and series feed techniques (11)(12)(13)(14)(15)(16), plate slot arrays (17), and substrate integrated waveguide (SIW) slot arrays (18)(19)(20)(21)(22).…”