Design of a Compact Wilkinson Power Divider using Four Asymmetric DGS for Harmonic Suppression

• Published in: 2019 TEQIP III Sponsored International Conference on Microwave Integrated Circuits, Photonics and Wireless Networks (IMICPW) pp. 353 - 356
• Main Authors: Khare, Ajay, Kharat, Santosh, Rajapkar, Akshay, Rathod, S.M., Kulkarni, Makarand
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.05.2019
• Subjects: Asymmetric hexagonal and square-headed dumbbell; Compact; Defected ground structure (DGS); Harmonic analysis; Harmonic suppression; Microstrip; Microwave integrated circuits; Power dividers; Power harmonic filters; Resistors; Wilkinson power divider
• DOI: 10.1109/IMICPW.2019.8933177

In this paper, a compact configuration of aWilkinson power divider (WPD) has been propose-doperating at 2.45 GHz using asymmetric defected ground structure (DGS). WPD divides the power equally with better isolation between output ports. DGShas been incorporated at the input and output portto works as abandstop filters and reduces the additional space required during the integration. In this paper, we combine both property of power divider and DGS to achieve equal power division for 2.45GHz with suppression of higher order harmonics (i.e. 5 GHz and 7.5 GHz).Simulation results show that insertion loss decreases from -3dB to -10.10dB at 5GHz and -25 dB at 7.5GHz with the equal phase in both the output ports. Isolation between twoports 2 and 3 is -18.6 dB. The total volume of the proposed WPD is 0.00013 λ 0 3 , which is marginally less than the previouslyreported work. The measured results are in fair agreement with simulated results.