Compact Complementary Folded Triangle Split Ring Resonator Triband Mobile Handset Planar Antenna for Voice and Wi-Fi Applications

Abstract

In this work, a Complementary Folded Triangle Split Ring Resonator (CFTSRR) loaded triband mobile handset planar antenna is presented. The proposed antenna consists of a dumbbellshaped radiating element and two CFTSRR metamaterial unit cells. The dumbbell-shaped radiating element resonates at 5 GHz. The presence of CFTSRRs additionally offers two lower band resonance. The CFTSRR-1 and CFTSRR-2 exhibit negative permittivity at 1.8 GHz and 2.4 GHz, respectively. The proposed antenna is designed to resonate at 1.8 GHz (GSM1800 MHz), 2.4 GHz, and 5 GHz (IEEE802.11ax) for voice and Wi-Fi applications of the mobile handset, respectively. The proposed antenna demonstrates compactness up to 88.6% at 1.8 GHz. The parametric studies are investigated to optimize the antenna in desired frequency bands by using Ansys HFSS19 software. The simulated and measured results are discussed. The measured result shows −10 dB reflection coefficient

Compact Modified Hexagonal Spiral Resonator Based Tri-Band Patch Antenna With Octagonal Slot for Wi-Fi/Wlan Applications

“…The antenna achieves a simulated maximum peak gain of 10.9 dB at 2.4 GHz. Based on Table 2, the designed antenna has the best compactness and higher number of bands than [8,11,[12][13][14]16].…”

“…In [13], a complicated cross-shaped patch antenna with a hexagonal CSRR array was proposed only to cover Wi-Fi applications. In [14], a complementary folded triangle split-ring resonator loaded dualband patch antenna was designed for GSM1800 and Wi-Fi (IEEE 802.11 ax) applications. A complex structure of a dual-band CPW-fed metamaterial-inspired antenna was presented using the Composite Right/Left Handed (CRLH) metamaterial for Bluetooth, WLAN/Wi-Fi applications [15].…”

Hexagonal Split Ring Resonator Enclosed Circular Split Ring Resonator Inspired Dual-Band Antenna for Sub-6 GHZ 5g Nr and Ieee 802.11BA/BE Applications

“…A hexagonal split-ring metamaterial-inspired dualband antenna [11], a circular CSRR inspired cross-shaped dual-band antenna [12], and a triangular SRR metamaterial-inspired dual-band antenna [13] are designed for WLAN applications. An SRR inspired antenna [14], an electric LC loading based on Koch shaped fractal metamaterial antenna [15], a metamaterial slot inspired substrate waveguide antenna [16], a complementary capacitive-loaded loop antenna [17], a metamaterial with ELC and EBG loading antenna [18], a metamaterial inspired mushroom loaded antenna [19], a dumbbell shaped metamaterial inspired antenna [20], and a modified complementary hexagonal spiral resonator inspired antenna [21] have been realized for multiband performances, which are not focused on specific applications. A narrow-band single-loop resonator integrated monopole antenna is presented [22].…”

A CPW-Fed Triband Antenna for 2.4/3.5/5.5 GHZ Applications

“…A simple rectangular or circular patch can be used for exciting resonance at desired frequency. Many other techniques like metallic strips/meander line/ring [4][5][6][7][8], slot loaded stubs [9][10][11], slot loaded or defective ground structures(DGS) [10][11][12][13], metamaterial structures [9,14], fractal structures [3,15], etc. are reported as suitable techniques for generating single or multiple resonances, in literature.…”

“…A third band is excited by converting upper rectangular portion of the monopole into a modified rectangular split ring resonator (SRR). In a modified rectangular patch antenna [14] designed for 5 GHz, two lower bands at 1.8 GHz and 2.4 GHz were excited using complementary folded triangle split ring resonators. Use of metamaterial property helped to realize the lower bands without increasing size of the antenna designed for 5 GHz.…”