Dual Band Metamaterial Antenna For LTE/Bluetooth/WiMAX System

Abstract

A compact metamaterial inspired antenna operate at LTE, Bluetooth and WiMAX frequency band is introduced in this paper. For the lower band, the design utilizes an outer square metallic strip forcing the patch to radiate as an equivalent magnetic-current loop. For the upper band, another magnetic current loop is created by adding metamaterial structure near the feed line on the patch. The metamaterial inspired antenna dimension of 42 × 32 mm2 compatible to wireless devices. Finite integration technique based CST Microwave Studio simulator has been used to design and numerical investigation as well as lumped circuit model of the metamaterial antenna is explained with proper mathematical derivation. The achieved measured dual band operation of the conventional antenna are sequentially, 0.561~0.578 GHz, 2.346~2.906 GHz, and 2.91~3.49 GHz, whereas the metamaterial inspired antenna shows dual-band operation from 0.60~0.64 GHz, 2.67~3.40 GHz and 3.61~3.67 GHz, respectively. Therefore, the metamaterial antenna is applicable for LTE and WiMAX applications. Besides, the measured metamaterial antenna gains of 0.15~3.81 dBi and 3.47~3.75 dBi, respectively for the frequency band of 2.67~3.40 GHz and 3.61~3.67 GHz.

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

“…According to the strip line theory [28], the inductance of the strips line is calculated using, 2 × 10 ln 1.193 0.2235 (9) where 'l' is the length of the strip line, 'w' is the width and 't' is the thickness. The capacitance per unit length of the paralleled strip lines are calculated using [29,30],…”

“…where 'l' is the length of the strip line, 'w' is the width and 't' is the thickness. The capacitance per unit length of the paralleled strip lines are calculated using [29,30],…”

A Wide Incident Angle, Ultrathin, Polarization-Insensitive Metamaterial Absorber for Optical Wavelength Applications

“…Theoretical explanation of V. Veselago devotee Smith et al to find an artificial double negative (DNG) metamaterial with negative permeability and permittivity [1], [2]. These properties of metamaterials depends on their physical structure that enables them to be used as antennas [3], waveguides [4], filters [5], invisible cloaks [6], absorbers [7], [8], specific absorption rates (SAR) [9], [10], detectors [11], imaging [12], RF lenses [13], superlenses [14], polarization converter [15], various kind of sensors [16]- [19]. After the first corroboration of metamaterial absorbers (MMA) in 2008 by Landy et al, they have been studied vigorously, both theoretically and practically [20].…”

Nickel Particle-Based Compact Flexible Antenna for Modern Communication Systems

“…The photolithography or etching processes are used to fabricate the antenna structure and creates large amount of waste due to its subtractive process. As a result, nowadays different types of flexible antennas are manufactured such as paper-based antennas [1], PET(Polyethylene terephthalate) substrates [2], polymer-based antennas [3], wearable antennas [4], fluidic antennas [5], textile antennas [6], carbon nanotube (CNT) antennas [7] and nickel-based metamaterial [8] for increasing the flexibility [9], reducing the waste, manufacturing cost and using low-cost materials.…”