A Dual-Element Folded Strip Monopole with SRR Loading for Multiband Handset MIMO Applications

A shorting-pin based compact meander multiband printed monopole antenna

“… Ref Year Size Freq. (GHz) BW(MHz) Gain Methodology [ 25 ] 2018 0.38 × 0.42 2.48/3.49 340/390 2.4/3.5 (dB) Meandering, SSR, and CPW [ 24 ] 2019 0.26 × 0.17 1.22/6.06 40/2360 0.99/3.72 dBi CRLH-TL, CPW [ 26 ] 2019 0.50 × 0.52 2.4/3.5 200/390 2.25/0.88 (dBi) MTM [ 27 ]∗∗ 2020 0.42 × 0.49 3.59/5.53 + 2830 3/3.6 dBi C-SRR, H-CRR and ACGP [ 28 ] 2020 0.42 × 0.77 0.85/1.8/2.6 NR 10 dB # Folded monopole with SRR [ 29 ] 2020 0.73 × 0.25 0.9/1.95/5.8 NR 3.2/3.8/9.2 dBi Folded branch with slit This work 0.22 × 0.36 2.2/3.5/4.2/4.6/4.9/5.6 120/60/30/60/230/80 0.4/1.7/3.4/4.6/2.8/1.1 dBi∗ Hybrid Meander lines and shorting-pin ∗Peak value, + Range, # Diversity gain, + Extracted from the comparative table, SSR- Square Split Ring; CPW- Co-planar waveguide; MTM- Metamaterial; C-SRR- Complementary Split Ring Resonator; H-CRR- Hexagonal Closed Ring Resonator; ACGP- Asymmetric coplanar ground plane; NR- Not reported; ∗∗wideband antenna with two resonances. …”

Ram Horn-Shaped Inspired Folded Compact Antenna for 4G LTE-A and WLAN Portable Mobile Applications

“…In the same light, authors in [15] have also used metasurface to achieve 67% miniaturization. In recent times, folded monopole antenna has attracted antenna design engineers due to its ability to reduce overall antenna size [25][26][27][28][29][30][31][32][33][34]. Folded monopole antenna uses the principle of space filling to miniaturize the antenna radiating patch.…”