Recent Advances and Open Challenges in RFID Antenna Applications

Khair, Nazmus Sakib; Yusof, Nurhafizah Abu Talip; Ariff, Mohd Hisyam Mohd; Wahab, Yasmin Abdul; Bari, Bifta Sama

doi:10.1007/978-981-19-2095-0_43

Cited by 4 publications

(3 citation statements)

References 45 publications

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“…Optimization entails the modification of an existing process with the aim of enhancing the frequency of favorable outcomes while concurrently diminishing the incidence of undesirable outcomes. [18]. From this analysis, good-performance dielectric composite materials that can exhibit high permittivity values can be fabricated.…”

Section: Phase 1: Analysis Model 211 Optimization Technique Using Des...mentioning

confidence: 99%

“…These experiments incorporated five levels of variation in numerical factors, specifically the axial points (plus and minus alpha), the factorial points (plus and minus 1), and the centre point. Alpha in Design Expert software refers to the minimum and maximum values of a factor, where plus alpha means the maximum value for the factor and alpha minus is the minimum value of the factor [18]. For the pulping time factor, the plus alpha used was 50 minutes and the minus alpha was 20 minutes, while for the factor weight of pineapple leaf powder, the plus alpha was 9 grams and the minus alpha was 1 gram.…”

Section: Phase 1: Analysis Model 211 Optimization Technique Using Des...mentioning

confidence: 99%

“…Pineapple waste, particularly the cellulose-rich sections in its leaves, significantly enhances the non-essential strength and stiffness of composite materials, making it an excellent reinforcing agent [17]. Utilizing cellulose derived from pineapple waste as a filler in composite materials opens up possibilities for applications in electronics devices such as capacitors, insulators, printed circuit boards (PCBs), sensors, and diverse types of antennas [17][18][19][20]. This approach not only allows for the full utilization of natural resources but also contributes to the development of novel dielectric composite materials from pineapple waste [11].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fabrication of Cellulose Powder Dielectric Composite Material using Pineapple Leaves Fiber

Rudraa Devi Giamasrow,

Nurhafizah Abu Talip Yusof,

Azahani Natasha Azman

et al. 2024

ARASET

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Pineapple, known for its delicious taste and nutritional value, generates substantial waste in the form of cores, leaves, and skin, resulting in significant yearly accumulations. Efficient disposal of pineapple waste has become a critical challenge due to its increasing production and potential environmental pollution. The objective of this paper is to volarize natural fibre derived from pineapple waste by fabricating it into a new dielectric composite material. The fabrication process of dielectric composite material was achieved by using the optimization technique through Design Expert software, resulting in noteworthy findings. Then, the properties of the fabricated materials were analysed in terms of their permittivity value and elemental composition. The permittivity value of the newly fabricated dielectric materials was measured using the vector network analyser (VNA) method, while their elemental composition was characterized using energy-dispersive X-ray (EDX) spectroscopy. The correlation between elemental composition and the permittivity value of newly fabricated composite materials is analysed in this paper. As a result, the dielectric composite material attained its highest permittivity (4.08) when composed of 76.02% carbon and 22.61% oxygen. Conversely, the material exhibited a lower permittivity value (2.87) when its carbon content decreased to 69.32% and its oxygen content increased to 29.81%. This outcome highlights the crucial role of carbon in absorbing and storing electromagnetic signals, influencing the dielectric properties of the material. In conclusion, this paper unveils a ground-breaking use for waste pineapple leaves, showcasing how their carbon content significantly affects the resulting dielectric composite material's permittivity. This innovative eco-friendly material presents a sustainable alternative for non-recyclable dielectric materials in electronic devices such as PCBs, antennas, and sensors, for example.

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Section: Phase 1: Analysis Model 211 Optimization Technique Using Des...mentioning

confidence: 99%

Section: Phase 1: Analysis Model 211 Optimization Technique Using Des...mentioning

confidence: 99%