Miniaturized Wilkinson power dividers utilizing capacitive loading

By M. Scardelletti, G. Ponchak, Thomas M. Weller. IEEE Microwave and Wireless Components Letters, 2002

282 citations recorded by the source corpus.

The authors report the miniaturization of a planar Wilkinson power divider by capacitive loading of the quarter wave transmission lines employed in conventional Wilkinson power dividers. Reduction of the transmission line segments from /spl lambda//4 to between /spl lambda//5 and /spl lambda//12 are reported here. The input and output lines at the three ports and the lines comprising the divider itself are coplanar waveguide (CPW) and asymmetric coplanar stripline (ACPS), respectively. The 10 GHz power dividers are fabricated on high resistivity silicon (HRS) and alumina wafers. These miniaturized dividers are 74% smaller than conventional Wilkinson power dividers, and have a return loss better than +30 dB and an insertion loss less than 0.55 dB. Design equations and a discussion about the effect of parasitic reactance on the isolation are presented for the first time.

Subfields: Aerospace Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/c8e734010d662bbb61b1fe7f99f4e00dd96c2d71

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In Electrical and Electronic Engineering

Citations in the corpus

Design and optimization of broadband asymmetrical multisection wilkinson power divider (2006, unknown): “In recent years, several schemes have been proposed to decrease the size of transmission lines in order to facilitate their application in microwave integrated circuits (MICs) and monolithic microwave integrated circuits (MMICs) [5], [6].”
Compact planar microstripline branch-line and rat-race couplers (2003, background): “Lumped elements may be introduced at strategic points [9], [11]–[13] or the coupler completely realized with lumped elements [14]–[17], thereby resulting in significant size reduction; but are more suited to MMIC realization.”