Norfatihah Bahari
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Preferred name
Norfatihah Bahari
Official Name
Norfatihah, Bahari
Alternative Name
Bahari, N.
Bahari, Norfatihah
Bahari, N. I.
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Scopus Author ID
56610151300
Researcher ID
CCZ-6056-2022

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Publication

Artificial Magnetic Conductor to Enhance Microstrip Patch Textile Antenna Performance for WiMAX Application

2020-12-18 , Zahid L. , Abu Bakar H. , Abdul Rani K.N. , Thennarasan Sabapathy , Mohd Aminudin Jamlos , Mohamad Rizal Abdul Rejab , Musa K.S. , Hamzah D. , Norfatihah Bahari , Rashidah Che Yob

A rectangular microstrip patch textile antenna with Artificial Magnetic Conductor (AMC) operated at the center frequency of 5.80 gigahertz (GHz) for Worldwide Interoperability for Microwave Access (WiMAX) application was designed and simulated using the CST Microwave Studio 2016 and fabricated in this study. The use of AMC could solve the inflexibility of FR4 substrate that limits human body movement and reduce the radiation scattered on the human body whilst increasing the antenna gain and directivity. The antenna consists of 5 5 square shape gap of AMC unit cells ground layer using ShieldIt Super, five substrate layers using cotton (viscose) fabric as well as patch layer and another ground layer using the same ShieldIt Super. AMC is a metamaterial that imitates the conduct of zero reflection phase of Perfect Magnetic Conductor (PMC) on the resonant frequency not evidently existed in nature. Overall, the antenna with AMC has the significant return loss, S11 below than -30 decibel (dB), gain improved to more than 8 dB, and directivity elevated to more than 9 dBi at resonant frequency near to 5.80 GHz, respectively.

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Publication

An IoT-based automated gate system using camera for home security and parcel delivery

2024-02-08 , Mohd Wafi Nasrudin , Jamaluddin A.F. , Ismail I. , Norfatihah Bahari , Vijayasarveswari Veeraperumal , Wan Azani Wan Mustafa , Abdul Syafiq Abdull Sukor , Abdul Rahim A.N.

The Internet of Things (IoT) has made it possible to set up smart home security and parcel delivery. Therefore, this work proposed an automated gate system using camera for home security and parcel delivery with integrated Internet of Things (IoT). An automated gate system will capture and identify the image of face visitors and delivery riders for admin authentication to open the gate and parcel box. This proposed work is controlled and monitored through mobile apps. The primary purpose and inspiration of this work are to help the delivery rider put the parcel into the parcel box provided if there is no person in the house, and the owner can pick up the parcel without being broken or robbed when she/he comes back home. When the delivery rider presses the button near the gate, the admin will receive the notification "Someone coming,". The admin will click the "okay"button and the system will take a picture using the camera in Blynk App. After the admin verifies that is the delivery rider, the admin will open the box and the delivery rider can access the parcel door box and put the goods inside the box. Another advantage of this work, it also allows familiar people to access our home. The same process with the delivery rider where the visitor needs to press the bell and the admin needs to verify before the visitor can access the single gate. The result indicates that this work is able to monitor and control the gate and parcel door box using an IoT application.

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