A dual-band rectenna using broadband DRA loaded with slot

2017 ◽  
Vol 10 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Sachin Agrawal ◽  
Manoj Singh Parihar ◽  
Pravin N. Kondekar
Keyword(s):  
Energy Harvesting ◽  
Dielectric Resonator ◽  
Electromagnetic Coupling ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Load Impedance ◽  
Rf Energy Harvesting ◽  
Rectangular Slot ◽  
Rf Energy

This paper presents a broadband hybrid slot-dielectric resonator antenna for radiofrequency (RF) energy-harvesting application. The antenna geometry consists of a simple pentagon-shaped dielectric resonator antenna (PDRA) excited by a microstrip feed underlying rectangular slot with narrow notch. It is investigated that the bandwidth of the proposed PDRA is improved significantly owing to electromagnetic coupling between feeding slot and the dielectric resonator. The measured results demonstrate that the proposed PDRA achieves an impedance bandwidth of 110.8%, covering the frequency range from 0.86 to 3 GHz in addition of stable radiation pattern with peak gain of 6.8 dBi and more than 90% radiation efficiency throughout the band, showing its suitability for RF energy harvesting application. For this to be feasible, the developed antenna is matched with the rectifier at two public telecommunication bands of GSM-900 and GSM-1800 using a compact dual-band hybrid matching network. The measured result demonstrates that the proposed dual-band rectenna system provides the peak efficiency of 63 and 59% for a load impedance of 4.7 kΩ at 0.9 and 1.8 GHz, respectively.

scholarly journals Dielectric Resonator Rectenna for RF Energy Harvesting System

2019 ◽  
Vol 9 (2) ◽  
pp. 4834-4839
Keyword(s):  
Energy Harvesting ◽  
Dielectric Resonator ◽  
Electromagnetic Waves ◽  
Impedance Matching ◽  
Dielectric Resonator Antenna ◽  
Rf Energy Harvesting ◽  
Dc Power ◽  
Energy Harvesting System ◽  
Rf Energy ◽  
Dc Current

Recently, the various methods for RF energy harvesting and reutilizing has become the challenging matter around the world to minimize the wastage of RF energy in the form of electromagnetic waves within the atmosphere. An associate approach of collecting a particular range of frequencies & conversion into dc current- Rectenna is proposed here. Star shaped Dielectric Resonator Antenna is implemented as antenna for receiving RF energy at 2.44 GHz resonant frequency. It is observed that Star shaped DRA exhibits a radiated power of 0.8825 W with respect to 1W incident power and maximum gain of 5.9672 dBi. The RF power received by Antenna is given to a Rectifier circuit via proper impedance matching circuit. The rectified pulsating DC power is given to capacitor filter to suppress harmonics .

scholarly journals A Dual-Band Rectifier for RF Energy Harvesting

2015 ◽  
Vol 19 (5) ◽  
pp. 189-197 ◽  
Author(s):  
Ekkaphol Khansalee ◽  
Kittipong Nuanyai ◽  
Yan Zhao
Keyword(s):  
Energy Harvesting ◽  
Dual Band ◽  
Rf Energy Harvesting ◽  
Rf Energy

scholarly journals Dual Band Notch, Compact, Low profile, Hybrid Ultra Wideband RDRA

2020 ◽  
Vol 10 (1) ◽  
pp. 166-169
Keyword(s):  
Radiation Pattern ◽  
Dielectric Resonator ◽  
Surface Current ◽  
Wide Band ◽  
Ultra Wideband ◽  
Dual Band ◽  
Ultra Wide Band ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Ground Structure

This paper presents a novel, compact Ultra Wide Band , Asymmetric Ring Rectangular Dielectric Resonator Antenna (ARRDRA), which is a unique combination of Thin Dielectric Resonator (DR), Fork shape patch and defective ground structure. The base of the proposed antenna is its Hybrid structure, which generates fundamental TM, TE and higher order modes that yields an impedance bandwidth of 119%. Proposed antenna provides a frequency range from 4.2 to 16.6 GHz with a stable radiation pattern and low cross polarization levels. Peak gain of 5.5 dB and average efficiency of 90% is obtained by the design. Antenna is elongated on a FR4 substrate of dimension 20 x 24x 2.168 mm3 and is particularly suitable for C band INSAT, Radio Altimeter, WLAN, Wi-Fi for high frequencies. Ease in fabrication due to simplicity, compactness, stable radiation pattern throughout the entire bandwidth are the key features of the presented design. Inclusion of Defective ground structure and asymmetric ring not only increases the bandwidth but also stabilize the gain and efficiency due to less surface current. Presented design launch an Ultra Wide Band antenna with sufficient band rejection at 4.48-5.34 and 5.64-8.33 GHz with stable radiation pattern and high gain.

A dual band rectifying antenna for RF energy harvesting

2018 ◽  
Vol 17 (4) ◽  
pp. 1748-1755 ◽  
Author(s):  
Neeta Singh ◽  
Binod K. Kanaujia ◽  
Mirza Tariq Beg ◽  
Mainuddin ◽  
Sachin Kumar ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Dual Band ◽  
Rf Energy Harvesting ◽  
Rf Energy
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