Electrically Compact SRR-Loaded Metamaterial Inspired Quad Band Antenna for Bluetooth/WiFi/WLAN/WiMAX System

Abstract

In this paper, we reveal a concept of low-profile Split Ring Resonator loaded metamaterial inspired antenna for Bluetooth/WiFi/WLAN/WiMAX communication systems. The antenna’s overall dimensions are 30 × 31 mm2 where two metamaterial unit cells are placed parallel to each other and a zig-zag feed line is connected with the SubMiniature version A connector. The defected ground technique was used to improve the antenna’s operational bandwidth. The computer simulation technology Microwave Studio was used to design and perform the numerical investigation, and the antenna was fabricated on FR-4 dielectric material. The Agilent N5227A VNA and anechoic chamber-based Satimo Star Lab were used to measure the antenna’s scattering parameters, voltage standing wave ratio, gain, efficiency and radiation patterns. The proposed metamaterial antenna had 200 MHz (2.40–2.60 GHz) and 390 MHz (3.40–3.79 GHz) overall bandwidth, which are similar to the simulated data. The measured results were applicable for Bluetooth (2.40–2.485 GHz), WiFi (2.4 GHz), WLAN (2.40–2.49 GHz and 3.65–3.69 GHz), and WiMAX (3.40–3.79 GHz) applications. The antenna’s average gain was 1.50 dBi, with the maximum and minimum gains of 2.25 dBi and 0.88 dBi, respectively, in addition to omnidirectional radiation patterns at operating bands.

A Comparative Study of Compact Multiband Bio-Inspired Asymmetric Microstrip Fed Antennas (BioAs-MPAs) for Wireless Applications

“…RF altimeter operating at a frequency band of 4.2-4.4 GHz is used in aviation industry to measure the altitude of the airborne and this, of a necessity, should not be interfered by other wireless protocol to ensure the accuracy of the measured altitude, hence the use of narrowband antenna operating at a center frequency of 4.3 GHz. Nonetheless, the majority of the works in the literature concentrated on multiband antennas for WLAN, WiMAX and ISM band applications [1][2][3][4][5]. Slot etching on the ground plane or on the radiating patch has been used in the literature to achieve multi-frequency resonances [1,[6][7][8].…”

“…Slot etching on the ground plane or on the radiating patch has been used in the literature to achieve multi-frequency resonances [1,[6][7][8]. Metamaterial has also been used for multiband antennas realization as reported by authors in [3,9,10].…”

Compact hexa-band bio-inspired antenna using asymmetric microstrip feeding technique for wireless applications

“…Over the years, the attention of researchers has been directed in this direction and the majority of the works in the literature have concentrated on multiband antennas for WLAN, WiMAX and ISM band applications [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. Nonetheless, with the recent deployment of 5G technology, it is necessary to incorporate some of its proposed operating frequency bands with other existing bands while ensuring compactness.…”

Metamaterial Cell-Based Superstrate towards Bandwidth and Gain Enhancement of Quad-Band CPW-Fed Antenna for Wireless Applications

“…Several types of metamaterial structures have been proposed: a split-ring resonator (SRR) [17,18], complementary split-ring resonators (CSRRs) [19,20], periodic array structures [21], and spiral resonators (SR) [22]. For instance, SRR unit cell structures have been investigated for antenna design miniaturization, creating multiband operation, and improving bandwidth and gain [23,24].…”