Design of equal division microwave power dividers

[摘要] ENGLISH ABSTRACT:Equal division microwave power dividers are investigated in this study. A widebandWilkinson power divider and a wideband directional coupler with a centre frequency of10 GHz were built. The design of the directional coupler is scaled, such that it can be usedbetween 18 and 40 GHz. The details of the electromagnetic analyses of these structuresare discussed and physical implementation issues are investigated.In a complementary study to the design of planar microwave dividers, the FDTD computationalmethod was implemented and used to analyse the Wilkinson divider and the 18to 40 GHz directional coupler.Results are compared to those obtained from commercial numerical method packages andin the case of the Wilkinson divider, to measured results.Suggestions are made for improvements in the implementation of the directional couplerand methods for a more efficient FDTD implementation are discussed.

[发布机构] Stellenbosch University