2.4 ghz metamaterial cst microwave studio

#2.4 ghz metamaterial cst microwave studio Patch#
#2.4 ghz metamaterial cst microwave studio software#
#2.4 ghz metamaterial cst microwave studio series#
#2.4 ghz metamaterial cst microwave studio free#

Attributing to the exotic properties, metamaterials can be used as a superstrate or substrate in antennas to improve antenna performance, such as increasing gain and impedance bandwidth. Metamaterials are artificial structures formed by periodically or aperiodically arranging their unit cells, which can freely manipulate the electromagnetic (EM) waves. However, the conventional MPAs have major disadvantages of narrow impedance bandwidth and low gain, which limit their practical applications.

#2.4 ghz metamaterial cst microwave studio Patch#

Microstrip patch antennas (MPAs) are a widespread choice in many existing and future wireless communication systems due to the advantages of low profile, light weight, low cost, and ease of fabrication. Furthermore, the profile can be further reduced to 0.15РћВ» 0 when the radiation patch of the antenna is surrounded by another metamaterial.

#2.4 ghz metamaterial cst microwave studio free#

Fortunately, the profile of the antenna is only 0.19РћВ» 0 (РћВ» 0is the free space wavelength at central frequency). The 1 dB and 3 dB gain bandwidths are 380 MHz (6.7%) and 590 MHz (10.3%), respectively. The measured results reveal that the antenna has an impedance bandwidth (S 11 < РІв‚¬вЂ™10 dB) of 690 MHz (12.4%) and a maximum gain of 13 dB appearing at 5.6 GHz. Attributing to the property of high refractive index, the metamaterial can effectively improve the performance of a microstrip antenna when it is loaded as a superstrate. By reducing the gap of adjacent patches and the thickness of dielectric plate, the proposed metamaterial can suppress the diamagnetic response and enhance the capacitance coupling, so that the refractive index of the metamaterial is higher than 10 in wideband from 4 to 8 GHz. We propose a high refractive index metamaterial (HRIM)that is composed of two identical patch arrays symmetrically etched on both sides of a dielectric plate.

2School of Information and Communication, Guilin University of Electronic Technology, Guilin, China.

1School of Electrical and Information Engineering, Guangxi University of Science and Technology, Liuzhou, China.

#2.4 ghz metamaterial cst microwave studio software#

The results obtained through РІР‚СљCST MICROWAVE STUDIOРІР‚Сњ design software and are very good for wirelessly access network resources at home and elsewhere with up to 5 GHz performance, like IEEE 802.11a, widely available IEEE 802.11b, downwardly compatible IEEE 802.11g, and advanced IEEE 802.11n. And another Metamaterial antenna using three unit cells gives a better gain of 5.197 dB, overall efficiency of 92.5% and a return loss of -13.5 dB at 5 GHz frequency and the gain, efficiency and return loss are 4.183 dB, 60.78%, -14.5 respectively for 2.4 GHz. This antenna has better VSWR, gain and radiation efficiency compared to an ordinary patch antenna. Due to the unusual properties of the Metamaterials by using a single unit cell the antenna gives of 3.768 dB, overall efficiency of 53.76 and a VSWR of 1.6 at 5 GHz frequency which is very good for point to point wireless communication and wireless LANs. And this negative permittivity and permeability leads to negative refractive index due to this it exhibits unusual properties compared to readily available materials. The via leads to negative permittivity and microstrip gap leads to negative permeability.

#2.4 ghz metamaterial cst microwave studio series#

A unit cell consists of microstrip gaps and vias, whose behaviour is equivalent to the combination of series capacitors and shunt inductors respectively. The double negative property is being obtained by introducing unit cell structure. The rationale behind the work is that small planar antennas are proposed using DNG (Double Negative) Metamaterials. Using this Metamaterial antenna the demerits of ordinary patch antenna like low gain and efficiency can be overcome and is useful in the field of wireless communication. Also miniaturization in the size of the component is possible as the structural cell size of Metamaterial is less than one-fourth of the guided wavelength. Due to these unusual properties Metamaterial can change the electric and magnetic property of electromagnetic wave passing through it and because of these reasons when Metamaterial is used in the fabrication of microwave components and antennas the required properties can be enhanced. No other material in the world shows the above properties like Metamaterial.

Metamaterial doesnРІР‚в„ўt obey SnellРІР‚в„ўs law, Doppler effect, Vavilov-Cerenkov radiation etc. inside Metamaterial phase velocities and group velocities are antiparallel. Due to negative index it supports backward waves i.e. Metamaterials are artificial metallic structures having simultaneously negative permittivity (Р™вЂє) and permeability (РћС), which leads to negative refractive index.