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ABSTRACT
In this study, a miniaturized Wilkinson Power Divider (WPD) has been designed. Central frequency of the passband for designed power divider (PD) is 1.55 GHz. Using the oval and rectangular- shaped resonators instead of each quarter-wavelength transmission lines of conventional Wilkinson power divider (CWPD) will result in reducing the size of proposed PD by 55%. Presented PD has many advantages, such as low insertion loss (3.015 dB), high return loss (24 dB), high isolation rate between output ports (27 dB), and suppressing the high-frequency harmonics (eliminating the 2nd to 12th unwanted harmonics). Finally presented PD was fabricated and measured on The RT-5880 with ϵr = 2.2 and TanD = 0.0009 with a thickness of 0.787 mm as the substrate. The measured results have good agreement with the simulation one. Due to the appropriate specifications and the small size of the designed divider, this divider can be nominated to use in many communication applications.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Aria Hosseini Tabatabaee
Aria Hosseini Tabatabaee received the B.Sc. and M.Sc. degrees in electrical engineering and telecommunication engineering in Tuyserkan Branch, Islamic Azad University, Tuyserkan, Iran, and Kermanshah Branch, Islamic Azad University, Kermanshah, Iran, respectively. His research interests include the design and analysis of passive microwave components.
Farzin Shama
Farzin Shama received the B.E., M.E., and Ph.D. degrees in electronics from Razi University, Kermanshah, Iran in 2009, 2012, and 2016, respectively. Now, he is an assistant professor in Kermanshah Branch, Islamic Azad University, Kermanshah, Iran. His research interests include artificial intelligent, complex circuits and systems solutions, Analog circuits and design, microwave engineering, passive and active circuits design and fabrication, photovoltaic cell design, and neuron implementation. He was proud to achieve superior researcher in the engineering faculty of Razi University in 2011 and 2012. Also, he has been selected as the top student of Iran in the Ph.D. Degree in 2015. He has published more than 80 papers in international, domestic journals and conferences. He was proud to achieve a superior researcher in the engineering faculty of Kermanshah Branch, Islamic Azad University, in 2018.
Mohammad Amir Sattari
Mohammad Amir Sattari was born in Ilam, Iran, in 1995. He received the B.Sc. and M.Sc. degrees in telecommunication engineering and electronic engineering from Kermanshah University of Technology, Kermanshah, Iran, in 2017 and 2019, respectively. He is currently working toward a Ph.D. degree in electronic engineering. His research interests include the design and analysis of the passive and active microwave components; and the implementation and application of artificial neural networks.
Saeed Veysifard
Saeed Veysifard received the B.Sc. and M.Sc. degrees in electrical engineering and telecommunication engineering in Tuyserkan Branch, Islamic Azad University, Tuyserkan, Iran, and Kermanshah Branch, Islamic Azad University, Kermanshah, Iran, respectively. His research interests include the design and analysis of passive and active microwave components.