scholarly journals Circular Split Ring Resonator Loaded Circular Patch Microstrip Antenna for 5.2 GHz ISM Band

2018 ◽  
Vol 11 (5) ◽  
pp. 246-253
Author(s):  
Saptarshi Gupta ◽  
◽  
Rattan Sharma ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 637-643
Author(s):  
Ojo Rasheed ◽  
Mohd Faizal Jamlos ◽  
Ping Jack Soh ◽  
Mohd Aminudin Jamlos ◽  
Muammar Mohamad Isa

This paper present the design of a circular patch microstrip antenna with enhancement in terms of bandwidth and gain using a dielectric double negative (DNG) split ring metamaterial radome. This radome is positioned on top of the CP antenna operating from 5.2 GHz to 6.4 GHz. The metamaterial radome comprises of two alternate split rings of negative permittivity, permeability and refractive index. The circular microstrip antenna bandwidth of 430 MHz has been realized by the presence of DNG metamaterial radome compared to 220 MHz without the radome. The gain has been increased as well from 1.84 dBi to 3.87 dBi.


2013 ◽  
Vol 55 (4) ◽  
pp. 814-816 ◽  
Author(s):  
D. Laila ◽  
R. Sujith ◽  
V.A. Shameena ◽  
C.M. Nijas ◽  
V.P. Sarin ◽  
...  

2016 ◽  
Vol 54 (6) ◽  
pp. 689 ◽  
Author(s):  
Phan Duy Tung ◽  
Phan Huu Lam ◽  
Nguyen Thi Quynh Hoa

A microstrip antenna using negative index metamaterial based on complementary split ring resonator (CSRR)-loaded ground has been investigated in order to miniaturize the size and improve the antenna characteristics. The proposed antennas are designed on FR4 material and simulated results are provided by HFSS software. The metamaterial antenna was reduced 75 % the overall size compared to the normal microstrip antenna. Furthermore, compared with the normal microstrip antenna, the antenna characteristics of the metamaterial antenna were improved significantly.  The proposed metamaterial antenna exhibited the antenna resonate at 2.45 GHz, the gain of higher than 6.5 dB and the bandwidth of 110 MHz through the whole WLAN band.  The obtained results indicated that the proposed antenna is a good candidate for WLAN applications.


2016 ◽  
Vol 66 (4) ◽  
pp. 421 ◽  
Author(s):  
Vaishali Rawat ◽  
Vihang Nadkarni ◽  
S.N. Kale

Life of any automobile engine is largely dependent on the purity as well as the optimum ratios of their fuels, viz. petrol, diesel and ethanol. A device working on the electrical metamaterial concept, namely a complementary split ring resonator (CSRR), operating at 2.47 GHz (ISM band), is proposed to detect kerosene adulteration in petrol. Kerosene was varied upto 30 per cent with minimum detection limit as low as 10 per cent. Systematic shifts in the transmission resonance frequency were observed. The sensing was fast and the recovery was instantaneous. The underlying concept of interference of electromagnetic radiation through the CSRR circuit and its further manipulation with the changes in the dielectric ambience is elaborated.


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