Khairul Islam, Abedul Haque, Rezaul Karim, Abul Fajol et al.
Abstract Background Chronic arsenic exposure has been shown to cause liver damage. However, serum hepatic enzyme activity as recognized on liver function tests (LFTs) showing a dose-response relationship with arsenic exposure has not yet been clearly documented. The aim of our study was to investiga...
Rezaul Azim, AKM Moinul H. Meaze, Adnan Affandi, Md. Mottahir Alam et al.
Abstract This paper presents a low-profile multi-slotted patch antenna for long term evolution (LTE) and fifth-generation (5G) communication applications. The studied antenna comprised of a stepped patch and a ground plane. To attain the required operating band, three slots have been inserted within...
Rezaul Azim, Mohammad Tariqul Islam, Ahmed Toaha Mobashsher
A microstrip line-fed planar antenna with dual notched bands is designed and prototyped for ultrawideband (UWB) communication applications. The dual band-notch characteristic is achieved by etching a single tri-arm resonator below the patch. The simulated and experimental results show that the desig...
Nurshad Ali, Md. Ashraful Hoque, Abedul Haque, Kazi Abdus Salam et al.
BACKGROUND: Arsenic is a potent pollutant that has caused an environmental catastrophe in certain parts of the world including Bangladesh where millions of people are presently at risk due to drinking water contaminated by arsenic. Chronic arsenic exposure has been scientifically shown as a cause fo...
Rezaul Azim, Mohammad Tariqul Islam, Haslina Arshad, Md. Mottahir Alam et al.
In this paper a coplanar waveguide-fed super-wideband antenna is presented for wireless sensor networks. The studied low-profile design is comprised of a modified bow-tie-shaped vertical patch and two asymmetrical ground planes and has been prototyped on a single-sided FR4 microwave substrate. The a...
Md. Mottahir Alam, Rezaul Azim, Nebras Sobahi, Asif Irshad Khan et al.
A miniature planar antenna is a vital component of any portable wireless communication device. The antenna in portable devices should provide wide/multiple operating bands to cover a good number of narrowband services as a multi-band antenna not only reduces the number of antennas but also lessens t...
Md Siam Talukder, Md Samsuzzaman, Md Tarikul Islam, Rezaul Azim et al.
This paper represents an ellipse-shaped patch with a ground slotted broadband patch antenna for microwave head imaging systems. The proposed antenna constructs with a simple ellipse shaped square patch and modified slotted plane. The proposed design is very simple to fabricate and is enclosed in a m...
Md Samsuzzaman, Md Siam Talukder, Abdulrahman Alqahtani, Abdullah G. Alharbi et al.
Medical microwave imaging (MWI) research has gained more attention in recent decades, particularly with regard to the early detection of brain tumors. It offers numerous benefits over existing imaging technologies, including magnetic resonance imaging (MRI) and computed tomography (CT) scans. Antenn...
Asif Siddique, Rezaul Azim, Mohammad Tariqul Islam
Abstract A compact planar ultra-wideband (UWB) antenna with WiMAX and WLAN notched band is presented in this paper. The presented antenna consists of a rectangular patch and slotted partial ground plane and fed by a microstrip feed line. The volumetric size of the antenna is 30 mm × 22 mm × 1.6 mm. ...
Liton Chandra Paul, M. Hossain Ali, Nayan Sarker, Md. Zulfiker Mahmud et al.
A directional wideband microstrip line fed rectangular patch antenna has been proposed for the 28 GHz 5G applications. Initially, a conventional rectangular microstrip patch antenna has been designed thereafter to enhance the performances as well as to tune in the desired operating frequency range (...
Liton Chandra Paul, Sajeeb Chandra Das, Nayan Sarker, Rezaul Azim et al.
A wideband microstrip patch antenna (MPA) has been presented for fifth generation (5G) wireless application. The antenna is etched on Rogers RT 5880 (lossy) material (2.2, 0.0009) having compact size of $20\times 20\times 0.79\mathrm{mm}^{3}$. It shows gain of 5.22 dB, directivity of 7.48 dBi and VS...
Liton Chandra Paul, Md. Ibnul Hasan, Rezaul Azim, Md. Rashedul Islam et al.
In this paper high gain microstrip array antennas have been designed and analyzed for X band RADAR application. The array elements are excited by using inset feeding technique. Interestingly, all the array antennas are tuned exactly at centre operating frequency of 10 GHz. Rogers RT/duroid 5880™ hav...
Liton Chandra Paul, Md Nur Hossain, Md Munjure Mowla, Md. Zulfiker Mahmud et al.
The major finding of this work is to detect the presence of tumor in the human brain by using the proposed coplanar wave guide (CPW) fed ultra wide band (UWB) Vivaldi antenna. A six layered healthy human brain model with respective tissue properties has been designed and then a tumor having radius o...
Mohammad Shuhrawardy, Md. Halim Miah Chowdhury, Rezaul Azim
We present a wideband four-element MIMO antenna having the overall dimension of 25×30×0.8mm3 for fifth generation (5G) applications. The single antenna consist of a rectangular patch element with an inverted F-shaped slot, a chicken neck shaped feedline and a slotted ground plate. Our proposed MIMO ...
Md. Rezaul Karim, Abedul Haque, Khairul Islam, Nurshad Ali et al.
The present study was undertaken to evaluate the protective effect of turmeric powder on arsenic toxicity through mice model. Swiss albino male mice were divided into four groups. The first group was used as control, while groups 2, 3, and 4 were treated with turmeric powder (T, 50 mg/kg body weight...