Patent ID: 8115569

Claim:
A monoblock dielectric multiplexer, comprising: a dielectric block implemented as a hexahedral dielectric forming a body of the monoblock dielectric multiplexer; an external electrode applied to an external surface of the dielectric block except for to a top surface of the dielectric block; a plurality of resonant holes, each formed in a cylindrical shape and formed through the top surface and a bottom surface of the dielectric block; internal electrodes respectively formed on inner walls of the resonant holes; a plurality of capacitance patterns formed on the top surface of the dielectric block and configured to surround corresponding resonant holes; input/output electrode units formed and spaced apart from the capacitance patterns and configured to form capacitance coupling to the capacitance patterns, the input/output electrode units extending from the top surface to a front surface of the dielectric block and inputting and outputting signals; and a common antenna stage formed in a center portion of the dielectric block, wherein some of the patterns formed on the top surface of the dielectric block form patterns of at least one band-stop filter coupled to the common antenna stage: wherein, among the input/output electrode units, input/output electrode units for inputting and outputting signals to and from the band-stop filter are connected to each other through a bar-type pattern which is formed and spaced apart from the capacitance patterns forming the patterns of the band-stop filter by a predetermined distance which forms capacitance coupling; wherein, among the capacitance patterns and the coupling patterns, patterns other than patterns forming the patterns of the band-stop filter form a band-pass filter coupled to the patterns of the band-stop filter, wherein the band-stop filter and the band-pass filter share one of the input/output electrode units with each other and are designed to have infinite impedance between the band-stop filter and the band-pass filter through suitable impedance matching.