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.
Highlights
The demand of communication technology for integrating more communication standards within one space-restricted equipment is increasing, especially with the rise in Bluetooth, WiFi, WLAN, andWiMAX systems
John Pendry presented a summary of metallic microstructure comprising a regular array of thin wires that displayed a negative permittivity in 1996 and wire configuration on nonmagnetic thin sheets of metal with a negative permeability in
We present a single layer metamaterial inspired antenna, where the antenna is applicable for Bluetooth, WiFi, WLAN, and WiMAX
Summary
The demand of communication technology for integrating more communication standards within one space-restricted equipment is increasing, especially with the rise in Bluetooth, WiFi, WLAN, andWiMAX systems. To enhance the antenna’s performance, different methods have been used, such as insertion of slots/slits and the use of metamaterials. Metamaterials are engineered materials that show controllable electromagnetic characteristics that are not available in natural conventional materials. The unusual characteristics of metamaterials include negative refraction, left-handed characteristics, Electronics 2019, 8, 790; doi:10.3390/electronics8070790 www.mdpi.com/journal/electronics. Electronics 2019, 8, 790 sub-wavelength focusing, enhanced antenna performance, etc. Victor Vassalago, in 1967 first observed material with simultaneous negative permittivity and permeability at certain frequency, which were not available in the natural conventional material [1]. John Pendry presented a summary of metallic microstructure comprising a regular array of thin wires that displayed a negative permittivity in 1996 and wire configuration on nonmagnetic thin sheets of metal with a negative permeability in
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
