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This paper proposes an improved 1 to 4 power divider based on oversized-coaxial and radial waveguide. To widen the bandwidth of the divider/combiner, an axially symmetric oversized coaxial waveguide is used to transform input to the radial waveguide, and at the bottom of the radial waveguide, stepped-impedance technology is used to realize the impedance match. According to EM simulations, the simulated...
In this paper, two classes of Ka-band Substrate Integrated Waveguide(SIW) power divider are presented and studied. The advantages of the SIW technique are its low profile, low-lost, mass-productive, ease of fabrication and fully integrated with planar circuits. All the modules are designed to be operated in a wide frequency range. The Y-junction shows a bandwidth of 29.4%.
In this paper, a new conductor-backed coplanar waveguide (CBCPW) bandpass filter with U-slot defected ground structures (DGSs) is designed. Because of CBCPW structure, it is easy to be integrated with high frequency IC circuits and to do measurement work. The U-slot DGS not only provides a high Q factor, but also has a simple shape. Simulation shows that the filter has 2GHz 3dB bandwidth and 2.17-dB...
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