Now showing items 37-45 of 45

    • Reflection loss performance of hexagonal base pyramid microwave absorber using different agricultural waste material 

      Nornikman, Hassan; Fareq, Malek, Dr.; Soh, Ping Jack; Azremi, Abdullah Al Hadi (Institute of Electrical and Electronics Engineers (IEEE), 2010-11-08)
      Hexagonal base pyramid microwave absorber is the new design of microwave absorber. In this work, two sub-shapes are considered to compare it reflection loss performance. The shapes are hexagonal and truncated hexagonal ...
    • A review of antennas for Picosatellite applications 

      Abdul Halim, Lokman; Soh, Ping Jack; Saidatul Norlyana, Azemi; Herwansyah, Lago; Podilchak, Symon K.; Chalermwisutkul, Suramate; Mohd Faizal, Jamlos; Azremi Abdullah, Al-Hadi; Akkaraekthalin, Prayoot; Gao, Steven (Hindawi Limited, 2017)
      Cube Satellite (CubeSat) technology is an attractive emerging alternative to conventional satellites in radio astronomy, earth observation, weather forecasting, space research, and communications. Its size, however, poses ...
    • Rubber tire dust-rice husk pyramidal microwave absorber 

      Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr.; O., Nadiah; Nornikman, Hassan; M., Ahmed; M. Z. A., Abd Aziz; A. R., Osman; Soh, Ping Jack; Azremi, Abdullah Al Hadi; A., Hasnain; Mohd Nasir, Taib (EMW Publishing, 2011)
      Rubber tire dust-rice husk is an innovation in improving the design of pyramidal microwave absorbers to be used in radio frequency (RF) anechoic chambers. An RF anechoic chamber is a shielded room covered with absorbers ...
    • Setup and results of pyramidal microwave absorbers using rice husks 

      Nornikman, Hassan; Fareq, Malek, Dr.; Ahmed, M.; Wee, Fwen Hoon; Soh, Ping Jack; Azremi, Abdullah Al Hadi, Dr.; Ghani, S. A.; Hasnain, A.; Taib, M. N. (EMW Publishing, 2011)
      Agricultural wastes are considered not useful and are commonly dumped or burned after crop harvesting. Rice husks from paddy (Oryza sativa) are example of agricultural wastes. Rice husks have been investigated as the ...
    • Simplified Modeling, Simulation and Performance Analysis Using Circuit Model for a Corporate Feed Microstrip Patch Array 

      Soh, Ping Jack; Azremi, Abdullah Al Hadi; R A Rahim; Dayang Khadijah, Hamzah; Mohd Taufik, Jusoh (Institute of Electrical and Electronics Engineers (IEEE), 2007-03-27)
      This work is an effort in investigating and modeling an accurate circuit model derived from the transmission line method (CM/TLM) by simulating a rectangular microstrip patch array using two different simulation techniques, ...
    • Site-specific evaluation of a MIMO channel capacity for multi-antenna mobile terminals in proximity to a human hand 

      Azremi, Abdullah Al Hadi; Haneda, K.; Vainikainen, P. (The European Association on Antennas and Propagation (EurAAP), 2011-04-10)
      This paper presents a comprehensive evaluation on the Multiple-Input Multiple-Output (MIMO) channel capacity performance of a coupling element -based multi-antenna structures on a mobile terminal at the 2000 MHz Universal ...
    • Small rectangular parasitic plane as patch antenna ground plane for broadband WLAN application 

      Norra Shiella, Razali; Azremi, Abdullah Al Hadi; Soh, Ping Jack; Saidatul Norlyana, Azemi; Ibrahim, M.I. (Institute of Electrical and Electronics Engineering (IEEE), 2007)
      This paper proposed a microstrip patch antenna for broadband WLAN application. The antenna is based on an octagonal patch, which is simulated and analyzed by using Microwave Office (MWO) for WLAN applications. The designed ...
    • Small rectangular parasitic plane with diamond patch antenna for WLAN application 

      Norra Shiella, Razali; Azremi, Abdullah Al Hadi; Saidatul Norlyana, Azemi; Soh, Ping Jack; Imran Mohd, Ibrahim (Institute of Electrical and Electronics Engineering (IEEE), 2008)
      The design and experimental demonstrations of a microstrip patch antenna for broadband WLAN application are presented. The physical parameters of the antenna, including based on a diamond patch, antenna input impedance, ...
    • A study and investigation of Small Antenna Efficiency Measurement using Reverberation Chamber 

      Azremi, Abdullah Al Hadi; Jack, Soh Ping; Anuar, Mat Safar (Kolej Universiti Kejuruteraan Utara Malaysia, 2006)
      Numbers of small antennas were designed and various kind of antennas were tested for measurement. Amplitude fluctuations in signals received over mobile radio channels are typically modeled by Rayleigh distribution. The ...