Browsing Mohd Fareq Abd Malek, Associate Professor Dr. by Issue Date

Now showing items 41-60 of 77

    • Design of UHF harmonic butterworth low pass filter for portable 2 ways-radio 

      Liew, Hui Fang; Syed Idris, Syed Hassan, Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Yufridin, Wahab, Dr.; Norshafinash, Saudin (Engg Journals Publications, 2013)
      This paper presents the design of a compact Butterworth low pass filter designed operating at frequency range of 300-400MHz with input and output impedance of 50 ohm have been designed, simulated and fabricated. This filter ...

    • A comparative study of confined carrier concentration of laser using quantum well and quantum dot in active layer 

      Md. Abdullah, Al Humayun; Mohd Abdur Rashid, Dr.; Mohd Fareq, Abd. Malek, Dr.; Adawati, Yusof; Farrah Salwani, Abdullah; Nor Baizura, Ahmad (Trans Tech Publications, 2013)
      This paper presents a comparative analysis of the characteristics of confined carrier concentration in the gain medium as well as the carrier concentration at the threshold. We have studied extensively these phenomena by ...

    • Development of a new approach for high-quality quadrupling frequency optical millimeter-wave signal generation without optical filter 

      Nael A., Al-Shareefi; Syed I., S. Hassan; Mohd Fareq, Abd Malek, Dr.; Razali, Ngah, Assoc. Prof. Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Rashid Ali, Fayadh; Jaafar Adhab, ALdhaibani; Hasliza, A. Rahim (PIER, 2013)
      In this paper, we propose a new approach to generate quadrupling-frequency optical millimeter-wave (mm-wave) signal with carrier suppression by using two parallel Mach-Zehnder modulators (MZMs) in Radio-over-fiber (RoF) ...

    • The influence of human head model wearing metal-frame spectacles to the changes of SAR and antenna gain: Simulation of frontal face exposure 

      Mohd Hafizuddin, Mat; Mohd Fareq, Abd. Malek, Dr.; Whittow, William G.; Ronald, Suzanna Harun; Muhammad Solihin, Zulkifli; Norshafinash, Saudin; Latifah, Mohamed (EMW Publishing, 2013)
      The relationship between specific absorption rate (SAR) and antenna gain inside the head due to the metal-frame spectacles was investigated. The radio frequency (RF) energy source considered is the smartphone used in the ...

    • Experimental determination of the performance of rice husk-carbon nanotube composites for absorbing microwave signals in the frequency range of 12.4-18 GHz 

      Lee, Yeng Seng; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr.; Liu, Wei Wen, Dr.; Kok, Yeow You; Muhammad Nadeem, Iqbal; Wee, Fwen Hoon, Dr.; Khor, Shing Fhan, Dr.; Liyana, Zahid; Mohd Fariz, Haji Abd Malek (EMW Publishing, 2013)
      Composites of rice husks and carbon nanotubes (RHC-NTs) are an innovation in improving the absorption of microwave signals. Rice husks, which are an agricultural waste material, have been found to possess a significant ...

    • The influence of human head model wearing metal-frame spectacles to the changes of SAR and antenna gain: Simulation of frontal face exposure 

      Mohd Hafizuddin, Mat; Mohd Fareq, Abd. Malek, Dr.; Whittow, William G.; Suzanna, Harun Ronald; Muhammad Solihin, Zulkefli; Norshafinash, Saudin; Latifah, Mohamed (EMW Publishing, 2013)
      The relationship between specific absorption rate (SAR) and antenna gain inside the head due to the metal-frame spectacles was investigated. The radio frequency (RF) energy source considered is the smartphone used in the ...

    • A novel approach evaluation for enhancing networks 

      Satea Hikmat, Alnajjar; Mohd Fareq, Abd. Malek, Dr.; Mohammad Shahrazel, Razalli, Dr. (Elsevier B.V., 2013)
      This study reveals for a creation of a system that has the ability to prove the technical feasibility and the advantages of a joint Radio Frequency and fiber optic system with self-trace directional control between deployed ...

    • A cost-effective method for high-quality 60GHZ optical millimeter wave signal generation based on frequency quadrupling 

      Nael Ahmed, Al-Shareefi; Syed Idris, Syed Hassan, Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Razali, Ngah, Assoc. Prof. Dr. ; Sura A., Abbas; Syed Alwee Aljunid, Syed Junid, Prof. Dr. (EMW Publishing, 2013)
      In this paper, we present a cost effective method to generate a high-quality quadruple frequency optical millimeter- wave (MMW) signal using an integrated dual-parallel Mach-Zehnder modulator (IDP-MZM). Not only does the ...

    • Dual-band, parabolic, slotted ground plane-directive antenna for WLAN applications 

      Muhammad Zairil, Muhammad Nor; Sharul Kamal, Abd. Rahim, Assoc. Prof. Ir. Dr.; Mursyidul Idzam, Sabran; Mohd Fareq, Abd. Malek, Dr. (Taylor & Francis, 2013)
      Wireless local area network (WLAN) is one of the common terms used by researchers in the communications area that allows wireless, long-range communication. Antennas are used as a medium of transmission, and in recent WLAN ...

    • Dual-band suspended-plate wearable textile antenna 

      Nurul Husna, Mohd Rais; Soh, Ping Jack; Mohd Fareq, Abd. Malek, Dr.; Vandenbosch, Guy A. E. (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      A novel, dual-band wearable textile antenna fabricated using conductive textiles for operation in both ISM and HiperLAN applications is presented. Its concept is based on the suspended-plate antenna. It features a 60 × 45 ...

    • A new ultrasound pulser technique for wide range measurements 

      Mohammad Shahril, Salim; Mohd Fareq, Abd. Malek, Dr.; Noaman, Mohammad Noaman, Dr.; Naseer, Sabri; Latifah, Mohamed; Khairudi, Mohd Juni (IOP Publishing Ltd, 2013)
      The objective of this research was to design and implement a new ultrasonic pulse-power-decay technique that transmits multiple ultrasound pulses through slurry to determine the lowest concentration that can provide an ...

    • Minimization of open circuit voltage fluctuation of quantum dot based solar cell using InN 

      Farah Ayuni, Rosli; Mohd Abdur Rashid, Dr.; Mohd Fareq, Abd. Malek, Dr.; Muzaidi, Othman @ Marzuki; Ahmad Zaidi, Abdullah, Engr.; Md. Abdullah, Al Humayun (Trans Tech Publications, 2013)
      This paper reports the improvement of open circuit voltage stability of solar cell using InN based quantum dot in the active layer of the device structure. We have analyzed theoretically the temperature dependence of the ...

    • Design a quadband frequencies microstrip patch antenna with double C-shaped slot 

      Muhammad Majdi, Saad; Mohd Nor, Husain, Dato' Prof. Dr.; Nornikman, Hassan; Mohamad Zoinol Abidin, Abd. Aziz; Badrul Hisham, Ahmad, Dr.; Mohd Fareq, Abd. Malek, Dr. (Engg Journals Publications, 2013)
      A quadband frequencies microstrip square patch antenna with double C-shaped slot at the patch is proposed in this paper. First, a rectangular shaped patch antenna is designed for 2.40 GHz frequency (WLAN application) with ...

    • Novel: Time optimization model for centrifugation process: Application in human blood-plasma separation 

      Muhammed Sabri, Salim; Mohd Fareq, Abd. Malek, Dr.; Naseer, Sabri; Noaman, Mohammad Noaman, Dr.; Khairudi, Mohd Juni (Elsevier Ltd, 2013)
      One way to accurately diagnose many human diseases is to conduct tests on a sample of blood. These tests are based on analyzing precisely the results of a blood plasma sample free from any other blood cells. This article ...

    • A new ultrasonic exponential decay pulser technique for low concentrations detection and measurements 

      Muhammed Sabri, Salim; Mohd Fareq, Abd. Malek, Dr.; Naseer, Sabri; Noaman, Mohammad Noaman, Dr.; Khairudi, Mohd Juni; Noor Anida, Abu Talib (Praise Worthy Prize S.r.l., 2013)
      The objective of this study was to design and implement a new ultrasonic pulser with adjustable concentration detection. The new technique based on transmits a multiple ultrasound pulses with decay power through slurry to ...

    • Optical properties of ultraphosphate glasses containing mixed divalent zinc and magnesium ions 

      Khor, Shing Fhan, Dr.; Zainal Abidin, Talib, Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr. (Elsevier, 2013-01)
      Ternary zinc magnesium ultraphosphate glasses corresponding to (ZnO)x(MgO)30−x(P2O5)70 were prepared by melt quenching technique in the range of 5 ⩽ x ⩽ 20 mol%. The optical absorption spectra of the glasses were measured ...

    • Optical properties of ultraphosphate glasses containing mixed divalent zinc and magnesium ions 

      Khor, Shing Fhan, Dr.; Zainal Abidin, Talib, Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr. (Elsevier B.V., 2013-01)
      Ternary zinc magnesium ultraphosphate glasses corresponding to (ZnO)x (MgO)30 x (P2O5)70 were prepared by melt quenching technique in the range of 5 6 x 6 20 mol%. The optical absorption spectra of the glasses were ...

    • Smart receiver system of green hybrid antennas 

      Mohd. Faizal, Jamlos, Dr.; Muhammad Ramlee, Kamarudin, Assoc. Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Muzammil, Jusoh, Dr.; Mohd A., Jamlos (Wiley Periodicals, Inc., 2013-04)
      A hybrid of multiformities receiver system is proposed in this article.The system is developed through a combination of reconfigurable beam-steering antenna, reconfigurable beam-shaping antenna, and data acquisition (DAQ) ...

    • Smart platforms surveillance system to enhance communication in disaster environments 

      Satea Hikmat, Alnajjar; Mohd Fareq, Abd. Malek, Dr.; Zainab Nazar, Khalil Wafi (Engg Journals Publications, 2013-04)
      The modern communications technology is a positive case for disaster risk reduction, since they to it provides critical information to realize risk assessment. In this study, we present an innovative technique is characterized ...

    • Comparative study between measurement and predictions using geometrical optics and uniform theory of diffraction for case of non-line-of-sight (NLOS) in indoor environment 

      Cheng, Ee Meng, Dr.; Zulkifly, Abbas, Prof. Madya Dr.; Mohd Fareq, Abd. Malek, Dr.; Lee, Kim Yee, Dr.; Kok, Yeow You; Khor, Shing Fhan, Dr. (Springer Science+Business Media New York, 2013-08)
      This paper describes the investigation and comparison of the accuracy of a deterministic model for a WLAN system in the indoor environment. The measurement system consisted of a spectrum analyzer and a log-periodic antenna. ...