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International Journal of Electrical and Computer Engineering Systems, Vol. 15 No. 9, 2024.

Original scientific paper

https://doi.org/10.32985/ijeces.15.9.2

Miniaturized Ultra-Wide Band (UWB) Delta-Stub Based 4-Way Power Divider with Enhanced Isolation For Internet of Things (IoT) and Next-Generation Wireless Systems

Arshad Karimbu Vallappil orcid id orcid.org/0000-0002-4302-6150 ; Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n 08193, Cerdanyola del Vallès, Barcelona, Spain
Bilal A. Khawaja orcid id orcid.org/0000-0003-1537-5502 ; Faculty of Engineering, Department of Electrical Engineering, Islamic University of Madinah, P. O. BOX 170 Madinah, 41411, Saudi Arabia *
Abdulmajeed M Alenezi ; Faculty of Engineering, Department of Electrical Engineering, Islamic University of Madinah, P. O. BOX 170 Madinah, 41411, Saudi Arabia

* Corresponding author.

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Abstract

This paper proposes a novel wideband 1-to-4-way Wilkinson power divider (WPD) designed for operation in the ultra- wideband (UWB) frequency band. The proposed power divider operates in the frequency range of 3-8GHz. The design process started with conventional WPD design and evolved based on three stages of a 1-to-2 way power divider, incorporating 100Ω resistors and two delta-stubs for each stage. Delta-stubs are introduced in the WPD design for enhanced operational bandwidth and impedance- matching characteristics. The proposed power divider is designed using an FR4 substrate with a thickness of 0.76mm and εr of 4.3, respectively. The proposed design exhibits equal power split at all ports, good insertion-loss of approximately -6 ± 2dB, and return- loss of below -10 dB over the operating frequency band. Moreover, good impedance-matching, and isolation performance have been obtained over the desired frequency band. The proposed WPD was initially modeled mathematically and then designed and optimized using CST microwave studio (CST-MWS). The proposed design can be used in the next-generation UWB-Internet of Things (UWB-IoT) antenna array systems.

Keywords

Ultra-Wide Band (UWB); Wilkinson Power Divider; Delta-Stub; Antenna Array Systems; Internet of Things (IoT);

Hrčak ID:

321658

URI

https://hrcak.srce.hr/321658

Publication date:

16.10.2024.

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