The article presents a high gain metamaterial integrated modified golden spiral antenna for THz (Terahertz) applications. is well suited to the development of next-generation wireless telecommunication system capable firing at tremendous rate 100 Gb/sec. Golden patch with six decagon (MTM) unit cells in ground plane. cell designed by two SRRs (Split Ring Resonator).The proposed has dimensions x...

In this research, an inverted L shaped Wi-Fi antenna with a metamaterial (MTM) decoupling unit is proposed. This swirly-shaped has compact geometry size of 0.1 wavelength. The placed between the elements to improve isolation reduce mutual coupling. antenna’s reached 20.7 dB from 2.4 GHz 2.48 GHz, and 23.5 5.15 5.85 after was introduced. designed methodology reinforced anti-interference capabili...

This study introduces a compact branch-line coupler (BLC) based on metamaterial (MTM) technology that can operate in sub-6 GHz 5G frequency bands. Conventional vertical and horizontal sections of the BLC were replaced with T-shaped TLs interdigital capacitor (IDC) unit cells incorporated into to improve their performance reduce dimensions. The is designed Rogers RT5880 substrate material, it op...

This paper presents a textile-based C-shaped split-ring resonators (SRR) metamaterial (MTM) unit cells with an electrical tunability function. The proposed MTM was composed of two symmetrical SRR combined central diagonal metal bar, whereas the RF varactor diode is placed on backside splitted ground plane. Stopband behavior single and array were analyzed while achieved negative index physical c...

Metamaterial absorbers are used in the terahertz frequency regime as photo-detectors, sensing elements, imaging applications, etc. Narrowband absorbers, on account of their ultra-slender bandwidth within spectrum, show a significant shift absorption peak when an extrinsic entity relative to absorber, like refractive index or temperature encircling medium, is altered. This property paves path fo...

Received Feb 15, 2017 Revised Apr 22, 2017 Accepted May 7, 2017 This paper proposes metamaterial (MTM) inspired frequency reconfigurable antenna based on thecircular electric field coupled (ELC) resonator. It is composed of circular shape ELC resonator with the radius size of 7 mm. By inserting two switches between the gaps at both side of the circular ELC resonator, it is possible to switch ON...

Recently, there has been growing interest in the study of Metamaterials both theoretically and experimentally. Metamaterials (MTM) are artificial materials engineered to have properties that may not be found in nature. The invention of metamaterial was started in the late 1960s. In 1967, Victor Georgievich Veselago studied the electrodynamics of substances with simultaneously negative values of...

Mutual coupling inside antenna array is usually caused by two routes: signal leakage via conducting currents on the metallic background or surface wave along substrates; radio leakage received from space between antenna elements. The former one can be depressed by changing the distribution of surface currents, as reported in literatures. But when it comes to the latter one, the radiation-leakag...

Recently, there has been growing interest in the study of Metamaterials both theoretically and experimentally. Metamaterials (MTM) are artificial materials engineered to have properties that may not be found in nature. The invention of metamaterial was started in the late 1960s. In 1967, Victor Georgievich Veselago studied the electrodynamics of substances with simultaneously negative values of...