摘要

A compact 1-to-8 planar spatial power divider/combiner is proposed. It employs two dielectric substrates with a common ground plane. Two transitions are cascaded to divide power equally. The first transition is from a parallel stripline to two microstrip lines and the second transition is from oversized microstrip line to parallel multiport microstrip lines. A line taper is inserted to provide impedance match. The proposed structure is compact and has little possibility to stimulate high-order modes wave. A working prototype at 4-6 GHz is designed and fabricated. Measured results show a good agreement with simulated ones and (at input reflection coefficient of less than - 15 dB is achieved. 0 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1998-2001, 2009: Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24514

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