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Journal of Radio Electronics Online scientific journal · eISSN 1684-1719
2012, № 8 · ELECTRODYNAMICS

Design of T-split power dividers using dumbbell shared DGS

T. Moyra1,2, S.K. Parui3,4, S. Das3,4

1 Национальный технологический институт, Агартала, Индия, India
2 Department of Electronics and Communication Engineering, National Institute of Technology, Agartala
3 Бенгальский научно-технический университет, Шипбур, Индия, India
4 Department of Electronics and Telecommunication Engineering, Bengal Engineering and Science University, Shibpur, Howrah – 711 103, INDIA, India
Full text (PDF) EDN PJEINP

Abstract

Power dividers and power combiners are passive microwave components for power dividing and power combining. In this paper attention has been given towards the implementation of equal power divider using conventional 50 microstrip line and dumbbell shaped defected ground structures (DGS). DGS increase the effective inductance and capacitance of the line, supporting slow-wave propagation. Thus, it increases the effective line impedance of the microstrip line. Consequently, all passive and active components that are implemented using DGS have a miniaturized size compared to conventional components. In this paper one 3 dB or equal power divider has been implemented at 1.2 GHz in the first step. In the next part of the paper, one unequal power divider of dividing ratio 2:1 has been designed using DGS with microstrip line. Those dividers have wide applications in microwave circuits and feeds of array antennas.

  • microstrip
Аннотация (на русском)

Дизайн Т-образных делителей мощности с использованием неоднородности на подложке в форме гантели

Предложена и исследована конструкция микрополоскового симметричного (3дБ) и несимметричного (2:1) делителя мощности. Для согласования делителей используется отверстие в подложке в форме гантели. Неоднородность увеличивает эквивалентную индуктивность и улучшает согласование.

For citation

Moyra T., Parui S.K., Das S. Design of T-split power dividers using dumbbell shared DGS // Journal of Radio Electronics. – 2012. – No. 8.

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