Anju S Kumar - Academia.edu (original) (raw)
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Papers by Anju S Kumar
This paper presents a multi-band coplanar waveguide (CPW) fed antenna of size 47mm × 43 mm x 1.6m... more This paper presents a multi-band coplanar waveguide (CPW) fed antenna of size 47mm × 43 mm x 1.6mm with hexagonal patch implementing on a FR4 substrate with permittivity 4.6 and loss tangent of 0.001 based on metamaterial structure. Hexagonal ring technique is used to create multiple band of required frequency. Metamaterial structured antenna covers a frequency of 1.8 GHz, 2.4 GHz, 3.5 GHz and 5.2 GHz. It is suitable for the future 5G Internet of Thing (IoT) portable applications, WiMAX, Wi-Fi/Bluetooth applications. This antenna is designed and simulated results of return loss, voltage standing wave ratio (VSWR), radiation pattern using Ansys HFSS version 16.
Materials Today: Proceedings, 2021
Selection of substrate material and its thickness is very important in antenna design and fabrica... more Selection of substrate material and its thickness is very important in antenna design and fabrication to provide better results. This paper presents a comparative study on commonly available substrates which provides better performance. Substrates with different dielectric and thickness are considered for comparison. The antenna is designed to operate at a lower frequency and the substrates with thickness 0.13 mm, 0.8 mm, 1.6 mm are considered with dielectric constants of 3, 2.2, 4.4 which are commonly available. Antennas at a lower frequency of operation are widely used as these devices can be incorporated in the wireless communication devices, it has low correlation and provides high isolation in mobile terminals of much smaller size. The internal space consumed by the antenna elements and other components is limited. The effects of using these substrates and antenna parameters such as reflection coefficient, Gain, radiation pattern is observed using the electromagnetic solver ANSYS HFSS version 19.
Procedia Computer Science, 2020
Systems with ultra-band width make use in wireless scenario which enables information transmissio... more Systems with ultra-band width make use in wireless scenario which enables information transmission over long range of frequency of small distances with a minimum power and high information rates. An ultra-wide band filter is an important requirement for high-quality signal transmission and reception. Designing a compact UWB filter insertion loss much lower is a very difficult task. A structure with ground defected is defined to be etched periodically or non-periodically, cascaded configuration of a planar transmission line whose ground is defected disturbs the current distributed in the ground. A microstrip ultra-wideband filter is introduced in this paper. The filter includes interdigital feed lines on the upper face of substrate and rectangular-shaped structure defected ground at the bottom. The filter is 26.5 x 7.546 x 1.6 mm 3 of dimension. The filter provides excellent passband (from 2.4-14.3 GHz) with a reduced return loss of-21.24 dB and insertion loss of-0.7dB at 6.9 GHz. Simulations are carried using ANSYS HFSS Electromagnetic Solver version 16.2.
This paper presents a multi-band coplanar waveguide (CPW) fed antenna of size 47mm × 43 mm x 1.6m... more This paper presents a multi-band coplanar waveguide (CPW) fed antenna of size 47mm × 43 mm x 1.6mm with hexagonal patch implementing on a FR4 substrate with permittivity 4.6 and loss tangent of 0.001 based on metamaterial structure. Hexagonal ring technique is used to create multiple band of required frequency. Metamaterial structured antenna covers a frequency of 1.8 GHz, 2.4 GHz, 3.5 GHz and 5.2 GHz. It is suitable for the future 5G Internet of Thing (IoT) portable applications, WiMAX, Wi-Fi/Bluetooth applications. This antenna is designed and simulated results of return loss, voltage standing wave ratio (VSWR), radiation pattern using Ansys HFSS version 16.
Materials Today: Proceedings, 2021
Selection of substrate material and its thickness is very important in antenna design and fabrica... more Selection of substrate material and its thickness is very important in antenna design and fabrication to provide better results. This paper presents a comparative study on commonly available substrates which provides better performance. Substrates with different dielectric and thickness are considered for comparison. The antenna is designed to operate at a lower frequency and the substrates with thickness 0.13 mm, 0.8 mm, 1.6 mm are considered with dielectric constants of 3, 2.2, 4.4 which are commonly available. Antennas at a lower frequency of operation are widely used as these devices can be incorporated in the wireless communication devices, it has low correlation and provides high isolation in mobile terminals of much smaller size. The internal space consumed by the antenna elements and other components is limited. The effects of using these substrates and antenna parameters such as reflection coefficient, Gain, radiation pattern is observed using the electromagnetic solver ANSYS HFSS version 19.
Procedia Computer Science, 2020
Systems with ultra-band width make use in wireless scenario which enables information transmissio... more Systems with ultra-band width make use in wireless scenario which enables information transmission over long range of frequency of small distances with a minimum power and high information rates. An ultra-wide band filter is an important requirement for high-quality signal transmission and reception. Designing a compact UWB filter insertion loss much lower is a very difficult task. A structure with ground defected is defined to be etched periodically or non-periodically, cascaded configuration of a planar transmission line whose ground is defected disturbs the current distributed in the ground. A microstrip ultra-wideband filter is introduced in this paper. The filter includes interdigital feed lines on the upper face of substrate and rectangular-shaped structure defected ground at the bottom. The filter is 26.5 x 7.546 x 1.6 mm 3 of dimension. The filter provides excellent passband (from 2.4-14.3 GHz) with a reduced return loss of-21.24 dB and insertion loss of-0.7dB at 6.9 GHz. Simulations are carried using ANSYS HFSS Electromagnetic Solver version 16.2.