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
Year: 2024
Type: article
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.
Institutions: Institute of Space Sciences, Islamic University of Madinah
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4403489512