Browsing Azremi Abdullah Al Hadi, Assoc. Prof. Ts. Dr. by Issue Date
Now showing items 21-40 of 45
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Multiband fractal planar inverted F antenna (F-PIFA) for mobile phone application
(EMW Publishing, 2009)The design of a novel Fractal planar inverted F antenna (F-PIFA) based on the self affinity property is presented in this paper. The procedure for designing a Fractal Planar Inverted F Antenna is explained and three different ... -
Multiband fractal planar inverted F antenna (F-PIFA) for mobile phone application
(EMW Publishing, 2009)The design of a novel Fractal planar inverted F antenna (F-PIFA) based on the self affinity property is presented in this paper. The procedure for designing a Fractal Planar Inverted F Antenna is explained and three different ... -
Design and analysis of a novel dielectric loaded helical antenna
(World Scientific and Engineering Academy and Society (WSEAS) Press, 2009)Helical antennas have been a popular antenna configuration for various applications for its simple structure. This work describes the study on a novel, custom-shaped dielectric loaded helical antenna incorporated on an ... -
Design and application of a novel dielectric loaded helical antenna to WLAN products
(Institute of Electrical and Electronics Engineering (IEEE), 2009-05-25)BST dielectric loaded helical antenna designed here was found to be as good to operate on WLAN products. Characteristics of the new dielectric material barium strontium titanate (BST) also known as dielectric resonator had ... -
Performance simulation of pyramidal and wedge microwave absorbers
(Institute of Electrical and Electronics Engineering (IEEE), 2009-05-25)Anechoic chambers signal absorption capability is directly correlated to its performance. One of the main components in enabling signal absorption is the design and material used in designing the absorbers. Two of the main ... -
Design of pyramidal microwave absorber using agriculture waste with different resin content percentage
(Universiti Malaysia Pahang (UMP), 2009-06-20)Agriculture waste has many potential to produce an alternative and beneficial product for any suitable application such as microwave absorber for anechoic chamber. In this work, agriculture waste like rice husk from ... -
A development of fractal PIFA (Planar Inverted F Antenna) with bandwidth enhancement for mobile phone applications
(Institute of Electrical and Electronics Engineers (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 ... -
A development of fractal PIFA (Planar Inverted F Antenna) with bandwidth enhancement for mobile phone applications
(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 ... -
Five-element inverted-F antenna array for MIMO communications and radio direction finding on mobile terminal
(Institute of Electrical and Electronics Engineering (IEEE), 2009-12-08)A five-element inverted-F antenna array on mobile terminal for both multiple input multiple output (MIMO) communications and radio direction finding (RDF) applications is presented. The multi-element antenna (MEA) system ... -
Parametric studies of the pyramidal microwave absorber using rice husk
(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 ... -
Microwave wedge absorber design using rice husk - An evaluation on placement variation
(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) ... -
On diversity performance of two-element coupling element based antenna structure for mobile terminal
(Institute of Electrical and Electronics Engineers (IEEE), 2010-04-12)In wireless communication systems, multipath interference has a significant impact on system design and performance. Fast fading is caused by the coherent summation of one or more echoes from many reflection points reaching ... -
Reflection loss performance of hexagonal base pyramid microwave absorber using different agricultural waste material
(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 ... -
Setup and results of pyramidal microwave absorbers using rice husks
(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 ... -
Rubber tire dust-rice husk pyramidal microwave absorber
(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 ... -
Site-specific evaluation of a MIMO channel capacity for multi-antenna mobile terminals in proximity to a human hand
(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 ... -
Ambiguity analysis of isolation - Based multi-antenna structures on mobile terminal
(Institute of Electrical and Electronics Engineering (IEEE), 2011-04-10)This paper presents a comprehensive numerical study on the ambiguities for different isolation-based multi-antenna structures. The focus is on four-element planar inverted-F antennas (PIFA) array on a typical 100mm 40mm ... -
Multi-antenna mobile terminal diversity performance in proximity to human hands under different propagation environment conditions
(The Institution of Engineering and Technology, 2011-10-27)The effective diversity gain (EDG) of a four-element planar inverted-F antenna array, which operates at 3500MHz in the proximity to one hand in data-mode grip and two hands in browsing-mode grip, is predicted using a ... -
Influence of the user's hand on mutual coupling of dual-antenna structures on mobile terminal
(Institute of Electrical and Electronics Engineers (IEEE), 2012-03-26)This paper studies the influence of the user's hand on the mutual coupling of dual-antenna structures on a mobile terminal. The terminal consists of two planar inverted-F antennas (PIFA) on a typical 100 × 40 mm 2 mobile ... -
A novel 2.45GHz switchable beam textile antenna (SBTA) for outdoor wireless body area network (WBAN) applications
(EMW Publishing, 2013)A novel switchable beam textile antenna (SBTA) for wireless body area network (WBAN) applications is proposed. The SBTA is centrally-fed by a coaxial probe and the power distributed over four circular radiating elements. ...