A triple band Artificial Magnetic Conductor surface incorporating a split ring resonator antenna

Author(s):  
Rola Saad ◽  
Kenneth Lee Ford
Frequenz ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Maksud Alam ◽  
Amber Khan ◽  
Mainuddin ◽  
Binod Kumar Kanaujia ◽  
Mirza Tariq Beg

AbstractIn this paper a coplanar waveguide feed (CPW) monopole antenna backed with artificial magnetic conductor (AMC) structure for efficient radiation has been presented for off-body wearable applications. A split ring resonator (SRR) having thiner and longer lines to produce higher inductance and six splits with smaller gaps for high capacitance have been placed underneath CPW fed monopole to achieve resonance mode at a lower frequency. Higher values of inductance and capacitance produce resonant modes at relatively lower frequencies resulting in highly miniaturized antenna. The desired −10dB S11 bandwidth has been optimized firstly, by tuning/optimizing flow of surface currents with the help of several slots/slits and later by realizing AMC reflector with the help of full ground backed foam. The proposed antenna covers 2.45 GHz industrial, scientific and medical (ISM) band body area network (BAN) application and posses good front to back ratio (FBR) and thereby low and acceptable values of specific absorption rate (SAR). The proposed antenna has been designed and simulated using Ansys high frequency structured simulator and tested using vector network analyzer and anechoic chamber. The simulated and measured results well agree with each other.


2019 ◽  
Vol 26 (4) ◽  
pp. 1369-1378
Author(s):  
Somdotta Roy Choudhury ◽  
Mukesh Kumar ◽  
Aditi Sengupta ◽  
Susanta Kumar Partui ◽  
Santanu Das

2010 ◽  
Vol 24 (2-3) ◽  
pp. 241-250 ◽  
Author(s):  
J. Gemio ◽  
J. Parrón ◽  
P. de Paco ◽  
G. Junkin ◽  
J. Marin ◽  
...  

2013 ◽  
Vol 103 (14) ◽  
pp. 142603 ◽  
Author(s):  
Hai-Wen Liu ◽  
Yan Wang ◽  
Yi-Chao Fan ◽  
Xue-Hui Guan ◽  
Yusheng He

2020 ◽  
Vol 10 (13) ◽  
pp. 4660 ◽  
Author(s):  
Tao Xu ◽  
Yu-Sheng Lin

We present a tunable terahertz (THz) metamaterial using an electric split-ring resonator (eSRR), which exhibits polarization-sensitive characteristics. The proposed eSRR is composed of double symmetrical semicircles and two central metal bars. By changing the lengths of two metal bars, the electromagnetic responses can be tuned and switched between dual-band and triple-band resonances in transverse magnetic (TM) mode. Furthermore, by moving the bottom metal bar to change the gap between the two metal bars, the first resonance is stable at 0.39 THz, and the second resonance is gradually blue-shifted from 0.83 to 1.33 THz. The tuning range is 0.50 THz. This means that the free spectrum ranges (FSR) could be broadened by 0.50 THz. This proposed device exhibits a dual-/triple-band switch, tunable filter, tunable FSR and polarization-dependent characteristics. It provides an effective approach to perform tunable polarizer, sensor, switch, filter and other optoelectronics in THz-wave applications.


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