[6[6] M. Ameen and R. K. Chaudhary, “Metamaterial-based circularly polarized antenna employing ENG-TL with enhanced bandwidth for WLAN applications,” Electronics Letters, vol. 54, pp. 1152-1154, 2018.] |
5.5 |
Circularly polarized MTM based on ENG-TL |
10.86% |
4.17 |
[7[7] M. M. Islam, M. T. Islam, M. Samsuzzaman and M. R. I. Faruque, “Compact metamaterial antenna for UWB applications,” Electronics Letters, vol. 51, pp. 1222-1224, 2015.] |
3.07 to 19.91 |
Two capacitance-loaded strips (CLSs) |
146.56% |
5.62 to 8.57 |
[9[9] J. L. da Silva, H. D. de Andrade, H. C. C. Fernandes, B. T. Isaac, I. S. Q. Júnior, J. P. P. Pereira and A. S. S. Neto “Microstrip patch antenna project with split ring resonator periodically arrayed on the substrate,” Microw. Opl. Technol. Lett., vol. 57, pp. 2715–2720, 2015.] |
5.63; 5.76 |
Square SRR |
5.86%; 4.16% |
4.4; 5.22 |
[10[10] A. H. Jabire, H. Zheng, A. Abdu and Z. Song, “Characteristic mode analysis and design of wide band MIMO antenna consisting of metamaterial unit cell,” Electronics, vol. 8, pp. 68, 2019.] |
5.8 |
Capacitively loaded loop (CLL) |
65.5% |
10 |
[11[11] T. Alam, M. R. I. Faruque and M. T. Islam, “Specific absorption rate reduction of multi-standard mobile antenna with double-negative metamaterial,” Electronics Letters, vol. 51, pp. 970-971, 2015.] |
1.8. 2.4 |
Hexagonal SRR |
81.63%; 25.14% |
--- |
[12[12] T. Ali, A. W. S. Mohammad, R. C. Biradar, J. Anguera and A. Andújar, “A miniatirized metamaterial slot antenna for wireless applications,” Int. Journal Electron. Commun., vol. 82, pp. 368-382, 2017.] |
2.28; 2.65; 4.8; 5.89; 8.73 |
Rectangular complementary split ring resonator (RCSRR) |
7.01%; 5.66%; 9.16%; 5.43%; 5.38% |
2.16; 1.91; 2.65; 2.81; 3.01 |
[13[13] P. Dawar, N. S. Raghava and N.S., A. T. L. De, “UWB metamaterial-loaded antenna for C-band applications,” Int. Journal of Ant. and Propag., vol. 82, pp. 368-382, 2017.] |
3.19 |
SRR labyrinth |
600% |
3.18 |
[15[15] A. T. Devapriya and S. Robinson, “Investigation on metamaterial antenna for terahertz applications,” Journal of Microw., Opt. and Electrom. Applic., vol. 18, pp. 377-389, 2019.] |
1020 |
Circular SRR |
4.12% |
5.75 |
[16[16] S. Roy, K. L. Baishnab and U. Chakraborty, “Beam focusing compact wideband antenna loaded with mu-negative metamaterial for wireless LAN application', Progress In Electrom. Research, vol. 83, pp. 33-44, 2018.] |
5.2; 5.8 |
Square SRR |
31.37% |
4.0 |
[19[19] A. A. A. Abdelrehim and H. G. Shiraz, “High performance terahertz antennas based on split ring resonator and thin wire metamaterial structures,” Microw. Opl. Technol. Lett., vol. 58, pp. 382-389, 2016.] |
10; 303 |
Square SRR |
--- |
1.5; 1.1 |
[22[22] S. S. Al-Bawri, H. H. goh, M. S. Islam, H. Y. Wong, M. F. Jamlos, A. Narbudowicz, M. Jusoh, T. Sabapathy, R. Khan and M. T. Islam, “Compact ultra-wideband monopole antenna loaded with metamaterial,” Sensors, vol. 20, 2020.] |
3.08 to 14.10 |
Symmetric split ring resonator (SSRR) |
128.28% |
4.54 to 6.12 |
[23[23] A. E. Hidalgo and F. M. Rizo, “Antena de microcinta con estructura híbrida metamaterial para 2.4 GHz,” Revista chilena de ingeniería, vol. 27, pp. 22-23, 2019.] |
2.44 |
Hybrid (SRR and CSRR) |
5.8% |
1.45 |
This work |
5.3; 5.96 |
CLL (Λ0 = 4 mm) |
8.17% |
5.2 |
5.6; 6.08 |
CLL (Λ0 = 5 mm) |
8.54% |
5.4 |
5.79; 6.02 |
CLL (Λ0 = 6 mm) |
6.93% |
5.37 |