Browsing by Author "Kumar, Subroto"

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    A Plowing T-shaped Patch Antenna for WiFi and C Band Applications
    (2021 International Conference on Automation, Control and Mechatronics for Industry 4.0 (ACMI), IEEE, 2021-09-08) Haque, Md Ashraful; Paul, Liton Chandra; Kumar, Subroto; Azim, Rezaul; Hosain, Md. Sarwar; Zakariya, M Azman
    In this paper, a plowing T-shaped microstrip patch antenna (MPA) is proposed which can be used for 5 GHz WiFi (5.180 GHz – 5.925 GHz), 6 GHz WiFi (5.940 GHz – 7.075 GHz) and C band (4GHz – 8GHz) satellite applications. The dielectric substrate of Arlon Cu 217LX (lossy) material having a dielectric constant (εr) of 2.2 and loss tangent (δ) of 0.0009 has been used in the proposed design. The length (L) and width (W) of the substrate are 40 mm and 50 mm respectively. The proposed antenna covers a radiation frequency range of 4 GHz - 8 GHz and possesses gain of 3.55 dB to 6.4 dB over the entire bandwidth of the antenna. The antenna's resonance frequency is 5.78 GHz with a -31.08 dB return loss. The radiation efficiency of the antenna varies from 74% to 90% within the entire radiating frequency band. This antenna has been designed and optimized using CST MW studio. Finally, the results of CST MW studio have been buttressed by Zeland IE3D which reflects good matching between two simulators.
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    Design and Analysis of T-shape Microstrip Antenna for WLAN and C Band Application
    (Daffodil International University, 2020-10-18) Kumar, Subroto
    In this paper, a new formation of modified T shape simple Microstrip patch antenna (MPA) is designed and analyzed for Wi-Fi applications. The proposed antenna operates between the frequencies of 4 GHz to 8 GHz with return loss below -10 dB which almost covers entire C band with standard gain. Besides the proposed antenna is designed to operate at C band and WLAN (802.11/a/b/g) frequency bands by feeding a coaxial probe and the MPA is simulated on Zeland IE3D simulation software using Arlon cu 217LX (lossy) substrate with dielectric constant of 2.2 and thickness of 2.425mm. The dimension of designed antenna consists of 20 × 10× 2.425 mm3 . The proposed antenna resonates at 5.121 GHz for IE3D and 5.78 GHz for CST which can be used in Satellite applications, aircraft, space craft and wireless communication such as WLAN, WiMAX and Wi-Fi. The noted gain and directivity are 5.42929 dB and 6.16506 dBi respectively at 5.121 GHz and Gain and directivity are 4.47 dBi and 5.46 dB respectively at resonant frequency 5.78 GHz for CST. Through simulations better return loss and VSWR (<2) is achieved.