Design and miniaturization of dual band Wilkinson power dividers

Vaidotas Barzdenas – Aleksandr Vasjanov – Gediminas Grazulevicius – Andzej Borel

   In this paper, four differently shaped Wilkinson power dividers are presented by selecting the same physical length of twosection transmission lines, dual arbitrary frequency band Wilkinson power dividers can be achieved. The 2.4 GHz (WLAN) and 5.9 GHz (DSRC IEEE 802.11p) frequency bands are selected to complement the future development of multi-band, multi-standard transceiv-ers. To improve physical separation and electrical isolation between the two output ports a parallel RLC circuit is employed. For verification, the simulated and measured performance results of dual-band Wilkinson power dividers implemented on the rogers 4003C laminate are presented. The measurement results for the fabricated Wilkinson power dividers were in good agreement with theo-retical simulation results and show dual-band characteristics.

Keywords: dual-band, DSRC, RF/microwave circuit, rogers 4003C, Wilkinson power divider (WPD)

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