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Aiming at reducing the size of substrate integrated waveguide (SIW) Gysel power divider (PD), a SIW-based planar Gysel PD is redesigned based on low temperature co-fired ceramic (LTCC). In addition, another novel SIW-based nonplanar Gysel PD is first presented and implemented on multilayer LTCC, which can further reduce size over 83% when compared with planar Gysel PD. Both of the two SIW Gysel PDs...
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