Enhancing the resolution in imaging using folded metamaterial split ring resonator structure at microwave frequencies

2019 ◽  
Author(s):  
C. Bindu ◽  
Sreedevi P. Chakyar ◽  
Anju Sebastian ◽  
Sikha K. Simon ◽  
Jovia Jose ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Microwave Frequencies ◽  
Resonator Structure

Flexible split-ring resonator metamaterial structure at microwave frequencies

2012 ◽  
Vol 54 (6) ◽  
pp. 1415-1416 ◽  
Author(s):  
P. Menon. Ragi ◽  
K. S. Umadevi ◽  
Paul. Nees ◽  
Jovia Jose ◽  
M. V. Keerthy ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Metamaterial Structure ◽  
Split Ring ◽  
Microwave Frequencies

Compact Tri-Band Microstrip Patch Antenna Using Complementary Split Ring Resonator Structure

2021 ◽  
Vol 36 (3) ◽  
pp. 346-353
Author(s):  
Narayanasamy Rajesh Kumar ◽  
Palan Sathya ◽  
Sharul Rahim ◽  
Muhammed Nor ◽  
Akram Alomainy ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Microstrip Patch Antenna ◽  
Split Ring ◽  
Suitable Candidate ◽  
Complementary Split Ring Resonator ◽  
Microstrip Patch ◽  
Resonator Structure ◽  
Metamaterial Antenna ◽  
Good Comparison

In this letter, a compact complementary split ring based tri-band antenna is proposed. The proposed antenna resonates at 1.9 GHz (1.70-1.91 GHz), 2.45 GHz (2.23-2.52 GHz) and 3.2 GHz (2.9-3.25 GHz); the input match values are 24.56 dB, 27.21 dB and 22.46 dB, respectively. The antenna’s realised peak gain is 4.15 dBm at 1.9 GHz, 4.25 dBm at 2.4 GHz and 4.74 dBm at 3.2 GHz, with approximately 42% of reduction in antenna size. The results demonstrate that the proposed metamaterial antenna is tunable, electrically small and highly efficient, which makes it a suitable candidate for RF energy harvesting. The antenna is numerically and experimentally analysed and validated with very good comparison between the simulated and measured results.

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