volume | PIER Journals

Abstract

This paper presents a single stage 2-way Wilkinson Power Divider (WPD) suitable for Internet of Things (IoT) low frequency applications in the band from 200 MHz to 1 GHz. It is realized using a meandered line, and an open shunt stub matching network is added to get a compact structure. Moreover, a Vertical Periodic Defected Ground Structure (VPDGS) is added below each arm in order to improve the performance at the center frequency without adding extra length to the divider. The size of the proposed power divider is 30 × 15.3 mm² (0.082λ_g × 0.041λ_g). The fabricated power divider achieves a fractional bandwidth of 107%, an input return loss of better than 10 dB, an output return loss of 20 dB, an isolation of better than -10 dB and maximum exceeded insertion loss of 0.9 dB. The proposed compact power divider is implemented on Rogers RT/ Duroid 5880 with thickness 0.254 mm in order to bend on any conformal surface.

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Dr. Shaimaa Abdelaziz Mahmoud Osman

Dr. Mohamed S. El-Gendy

Professor Hadia El-Hennawy

Dr. Esmat A. F. Abdallah