A miniaturized Wilkinson power divider with 12th harmonics suppression

Aria Hosseini Tabatabaee, Farzin Shama, Mohammad Amir Sattari and Saeed Veysifard

Journal of Electromagnetic Waves and Applications, 2021, vol. 35, issue 3, 371-388

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.

Date: 2021
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DOI: 10.1080/09205071.2020.1839570

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