In this paper, we analyze H-plane T-junction using TE mode theory and design a diplexer for the broadcasting transponder of satellite. A diplexer is constructed by H-plane T-junction combined transmitting filter with receiving filter. These filters ar...
In this paper, we analyze H-plane T-junction using TE mode theory and design a diplexer for the broadcasting transponder of satellite. A diplexer is constructed by H-plane T-junction combined transmitting filter with receiving filter. These filters are designed by the insertion loss method. Matching elements are designed to reduce mismatching conditions on the discontinuity of T-junction, so that a diplexer is optimized and has the best property.
An optimum diplexer has characteristics that reflected power is about -20dB in the receiving passband and the transmitting passband.