Bandwidth Enhancement of 5G Parallel Coupled Line Band Pass Filter Using Patterned Ground Structure Technique

Morshidi, Ummi Haziqah; Zaidel, D. N. A.; Seman, Norhudah; Attan, M.P.; Mat, Dayang Azra Awang; Sharip, M. R. M.; Kanaya, Haruichi

doi:10.30880/ijie.2020.12.06.011

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…Moreover, BPF with compact size, low loss, and wide passbands becomes highly potential techniques to fulfil the 5G mobile communications requirements [4][5], which includes the massive multiple-input multiple-output (MIMO) system [6]. A BPF consists of several coupled resonators where the dimensions of the distributed lumped elements and number of resonators characterize the BPF [7].…”

Section: Introductionmentioning

confidence: 99%

Compact Parallel Coupled Line Microstrip BPF Design for 5G Applications

Temuli

Rani

Fuad

et al. 2023

ARASET

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A compact parallel coupled line microstrip bandpass filter (BPF) for sub-6 GHz fifth generation (5G) applications is designed operating between edge frequencies of 3.40 and 3.80 GHz. The design is designed and simulated by means of the Advanced Design System (ADS) software using the flame retardant-4 (FR-4) board as the substrate. The BPF design applies the insertion loss method (ILM) to generate a parallel coupled line filter structure that performs passband permission and unwanted noise attenuation below 3.40 GHz and above 3.80 GHz, respectively. Consistent and relevant performances in terms of matching impedance, return loss (S11), insertion loss (S21), voltage standing wave ratio (VSWR), far field radiation pattern, gain, directivity, and radiated efficiency promise the microstrip BPF design has a potential for sub-6 GHz 5G applications.

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Section: Introductionmentioning

confidence: 99%

Compact Parallel Coupled Line Microstrip BPF Design for 5G Applications

Temuli

Rani

Fuad

et al. 2023

ARASET

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A Preliminary Study of the Subdialects of Sarawak Malay based on Phonological Features and Lexical Words

Norahim

Hassan

Abidin

2022

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This article is a preliminary comparison of the phonological features of the subdialects of Sarawak Malay. The comparison covers basic phonological features that include phonemes inventory and their distribution in words, diphthongs, and vowel and consonant clusters. The survey is important as the basis for future research on the subdialect mapping of Sarawak Malay.Â Without the fundamental description of each subdialect in the aspects of phonology, lexical and, to some extent, grammar, it is difficult to research on the development of Malay subdialects in Sarawak. The data for this study were compiled by the present authors and also from the works of past researchers on the subject. The subdialects compared include those of Kuching, Tambirat, Kabong, and Debak, which also represent four focal areas of the Malay population in Sarawak. Two subdialect clusters were identified, namely the subdialect cluster of Kuching and another cluster spoken by the coastal Malays in Western Sarawak. The former group includes varieties in Malay villages in Bahagian Kuching, the surrounding basin of Sg. Sarawak, Sematan, Santubong, and Bako. The latter group includes varieties in the Kalaka-Saribas area in Bahagian Sri Aman and Betong, as well as in Bahagian Samarahan in Btg Sadong and its surrounding areas, namely Asajaya, Simunjan, and Sebuyau. This latter group is more phonologically heterogeneous than the former group, and shares some distinctive phonological features, such as the 8-vowel system, the absence of phoneme /-É£/ at word end, as well as diversity in diphthongs. At the same time, they also display phonological differences, such as the realisation of phoneme /-a/ to /-ə/ or /-o/, or maintenance of /-a/ at word end

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Effect of Different Mediators on Bio-Energy Generation and Palm Oil Mill Effluent Treatment in an Air-Cathode Microbial Fuel Cell-Adsorption System

Tan

Selvanathan

Abdullah

et al. 2021

DDF

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Palm oil mill effluent (POME) discharged without treatment into watercourses can pollute the water source. Microbial fuel cell (MFC) has gained high attention as a green technology of converting organic wastewater into bio-energy. As an approach to overcome the limitations of the existing POME treatment methods, air-cathode MFC-Adsorption system is introduced as an innovative technology to treat POME and generate bio-electricity simultaneously. However, the use of conventional MFC with proton exchange membrane in large scale applications is restricted by the high cost and low power generation. Addition of mediator in MFC is essential in order to increase the electron transfer efficiency, hence enhancing the system performance. This study therefore aims to investigate the effect of different type of mediators i.e. congo red (CR), crystal violet (CV) and methylene blue (MB) on the performance of an affordable air-cathode MFC-Adsorption system made from earthen pot with POME as the substrate. The addition of different mediators altered the pH of the MFC-Adsorption system, in which more alkaline system showed better performance. The voltage generated in the system with CR, CV and MB mediator was 120.58 mV, 168.63 mV and 189.25 mV whereas the current generated was 2.41 mA, 3.37 mA and 3.79 mA, respectively. The power density of 290.79 mW/m3, 568.72 mW/m3 and 716.31 mW/m3 was produced in the MFC-Adsorption system with CR, CV and MB mediator, respectively. The highest POME treatment efficiency was achieved in MFC-Adsorption system with MB mediator, which resulted in biochemical oxygen demand, chemical oxygen demand, total suspended solids, turbidity and ammoniacal nitrogen removal of 75.3%, 84.8%, 91.5%, 86.1% and 23.31%, respectively. Overall, the air-cathode MFC-Adsorption system with addition of MB mediator was feasible for POME treatment and simultaneous bio-energy generation.

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Bandwidth Enhancement of 5G Parallel Coupled Line Band Pass Filter Using Patterned Ground Structure Technique

Cited by 4 publications

References 13 publications

Compact Parallel Coupled Line Microstrip BPF Design for 5G Applications

Compact Parallel Coupled Line Microstrip BPF Design for 5G Applications

A Preliminary Study of the Subdialects of Sarawak Malay based on Phonological Features and Lexical Words

Effect of Different Mediators on Bio-Energy Generation and Palm Oil Mill Effluent Treatment in an Air-Cathode Microbial Fuel Cell-Adsorption System

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