Browsing Soh Ping Jack, Assoc. Prof. Dr. by Issue Date

Now showing items 21-40 of 56

    • Free space measurement technique on dielectric properties of agricultural residues at microwave frequencies 

      Wee, Fwen Hoon; Soh, Ping Jack; Mohd Suhaizal, Abu Hassan; Nornikman, Hassan; Mohd Ezanuddin, Abdul Aziz (Institute of Electrical and Electronics Engineering (IEEE), 2009-11-03)
      Principles to determine dielectric properties measurement using microwave free-space transmission measurements technique is presented in this paper. The project's main objective was to measure the dielectric properties of ...

    • Design of a modified L-shaped bandstop filter for UWB applications 

      Nizam, M. M.; Soh, Ping Jack; Mohamad Suhaizal, Abu Hassan (Institute of Electrical and Electronics Engineering (IEEE), 2009-11-03)
      Performance of UWB system may be degraded since the interference may be exist due to the presence of signals from other existing wireless communication systems. Currently, the major interference are in-band signal from ...

    • A development of fractal PIFA (Planar Inverted F Antenna) with bandwidth enhancement for mobile phone applications 

      Saidatul Norlyana, Azemi; Azremi, Abdullah Al Hadi; R. Badlishah, Ahmad, Prof. Madya Dr.; Soh, Ping Jack; Fareq, Malek (Institute of Electrical and Electronics Engineering (IEEE), 2009-11-16)
      A novel Fractal planar inverted F antenna (F-PIFA) based on the self affinity design is presented in this paper. The procedure for designing a Fractal Planar Inverted F Antenna is explained and the 2nd iteration of Sierpinski ...

    • Design of a fork-tuned antenna for Ultra-WideBand (UWB) communications 

      Mohd. Ezanuddin, Abdul Aziz; Soh, Ping Jack; Mohd Suhaizal, Abu Hassan; Norazliana, M. N. (Institute of Electrical and Electronics Engineering (IEEE), 2009-12-07)
      Presented here is a microstrip antenna designed for Ultra Wideband (UWB) with an achievement of return loss below -10dB beginning from 6.5 GHz to 10.5 GHz attaining a bandwidth of 4 GHz. It radiates omni-directionally with ...

    • Parametric studies of the pyramidal microwave absorber using rice husk 

      Nornikman, Hassan; Fareq, Malek, Dr.; Soh, Ping Jack; Azremi, Abdullah Al Hadi; Wee, Fwen Hoon; Hasnain, A. (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Agriculture waste has potential to be used as an alternative material for the microwave absorber used in the anechoic chamber. Compared to the current materials used, such as polystyrene and polyurethane, agricultural waste ...

    • Investigation on the CCSRR influences towards CSMA with air gap for HAPS 

      Ezanuddin, A. A. M.; Fareq, Malek, Dr.; Soh, Ping Jack (Institute of Electrical and Elctronics Engineering (IEEE), 2010)
      A circular profile microstrip antenna and its related structural dimensions meant for 5850 -7075 MHz Malaysia HAPS operating band are investigated here. Appearing by three layers and having layer three surface copper ...

    • Metamaterial entrenched circular microstrip antenna for Malaysia HAPS 

      Muhammad Ezanuddin, Abdul Aziz; Mohd Fareq, Malek, Dr.; Soh, Ping Jack; R. Badlishah, Ahmad, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-04-12)
      A circularly microstrip antenna (CMSA) with its related geometry intended for 5850-7075 MHz Malaysia HAPS operating band are presented here. Construction are made into three layers having layer three surface copper ...

    • Microwave wedge absorber design using rice husk - An evaluation on placement variation 

      Nornikman, Hassan; Soh, Ping Jack; Fareq, Malek, Dr.; Azremi, Abdullah Al Hadi; Wee, Fwen Hoon; R. Badlishah, Ahmad, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-04-12)
      Placement variation is one example of parameters that critically affects the performance of RF absorbers. In this work, four designed variation patterns - W, X, Y, and Z were discussed to compare the reflectivity (Sll) ...

    • A Bandwidth-improved slotted circular microstrip antenna (CMSA) for High Altitude Platform Stations (HAPS) 

      Ezanuddin, A. A. M.; Mohd Fareq, Malek; Soh, Ping Jack; R. Badlishah, Ahmad, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineering (IEEE), 2010-04-12)
      An investigative design of a circular microstrip antenna (CMSA) and its related geometry intended for 5850 - 7075 MHz Malaysia HAPS operating band is presented. The structure consists of three layers, with the radiator ...

    • Design and analysis of an UTeM antenna 

      Dalila, Misman; Mohamad Zoinol A., Abdul Aziz; Soh, Ping Jack; R. Badlishah, Ahmad, Assoc. Prof. Dr. (Institute of Electrical and Elctronics Engineering (IEEE), 2010-04-12)
      Meander line antenna design with parasitic element was investigated. The overall antenna design structure referred to the UTeM logo. This antenna has been designed to operate at 2.4GHz which are specified by IEEE 802.11b/g ...

    • Effect on source signal condition for pyramidal microwave absorber performance 

      Nornikman, Hassan; Fareq, Malek, Dr.; Soh, Ping Jack (Institute of Electrical and Electronics Engineers (IEEE), 2010-05-11)
      In designing a microwave absorber for anechoic chamber, there are many condition can affect the performance of microwave absorber. In this work, four conditions are discussed to compare the reflectivity or S11 of the ...

    • Design of single layered circular and rectangular U-slotted, CPW-fed antennas and arrays for RFID applications 

      Roshayati, M.; Soh, Ping Jack; Ismahayati, Adam (Institute of Electrical and Electronics Engineers (IEEE), 2010-05-26)
      This work describes the design of high gain, U-slot antennas for RFID 915 MHz (902- 928 MHz) applications. Four types of antenna were designed, optimized and evaluated - a circular, U-slotted antenna, a rectangular ...

    • Design and simulation of a modified Minkowski fractal antenna for Tri-Band application 

      Siti Nuha, Shafie; Ismahayati, Adam; Soh, Ping Jack (Institute of Electrical and Electronics Engineers (IEEE), 2010-05-26)
      This work presents a novel tri-band Minkowski planar antenna, using a modified planar monopole-shaped ground plane. The fractal structure is advantageous in generating multiple resonances, while the modified ground plane ...

    • The CCSRR influences towards circular microstrip antenna 

      A. A M., Ezanuddin; Fareq, A. Malek; Soh, Ping Jack (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-15)
      A circular profile microstrip antenna and its related structural dimensions meant for 5850-7075 MHz Malaysia HAPS operating band are investigated here. Appearing by three layers and having layer three surface copper re-shaped ...

    • Development of tunable multi beam antenna for High Altitude Platform Station (HAPS) – Progress II 

      Mohd Fareq, Abd Malek, Dr.; Soh, Ping Jack; Muhammad Ezanuddin, Abdul Aziz (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      In this paper, influence of Circularly Split Ring Resonators with its accompanying circular microstrip patch antenna are investigated. Proposing a 5850 to 7075 MHz band of working frequency, by means of microwave ...

    • Design of Barium Strontium Titanium (BST) array antenna 

      F. H., Wee; Mohd Fareq, Abd Malek, Dr.; Soh, Ping Jack (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      A design of a 4x4 dielectric resonator (DR) microstrip patch array antenna with a 50 Ω microstrip transmission line feed is presented. The antenna was designed to operate at the Worldwide interoperability for Microwave ...

    • 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 ...

    • Investigation of complementary split ring resonators with dielectric ring 

      Ezanuddin, A. A. M.; Fareq, Malek, Dr.; Soh, Ping Jack (Institute of Electrical and Electronics of Engineering (IEEE), 2010-11-08)
      This paper present development in relation to a wideband antenna comprising a disk antenna and a plurality of circular split ring resonators coupled with a high dielectric ring. Using slotted resonators together with ...

    • Design and simulation of a Sierpinski Carpet Fractal PIFA for WLAN and HiperLAN application 

      Ismahayati, Adam; Soh, Ping Jack; Mohd Fareq, Abdul Malek, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-11-09)
      This paper describes the design and simulation of Sierpinski Carpet Fractal Planar Inverted F Antenna (PIFA) for WLAN and HiperLAN applications. Simulation of antenna is carried out using CST software; on a FR4 board ...

    • Design of a Flexible Minkowski-Like Pre-Fractal (MLPF) antenna with different ground planes for VHF LMR 

      Lee, E. C.; Soh, Ping Jack; Nur Baya, Mohd. Hashim; Vandenbosch, G. A. E.; H., Mirza; Ismahayati, Adam; Ooi, S. L. (City University of Hong Kong, 2011-03-07)
      This work investigates the suitability of a flexible Minkowski-like pre-fractal antenna (MLPF) for application in the Very High Frequency (VHF) Land and Mobile Radio (LMR) frequency bands (136-174 MHz). The proposed ...