FIELD: radio equipment.;SUBSTANCE: invention relates to radio engineering, particularly, to diplexers. Microstrip diplexer consists of a dielectric substrate, one side of which is metal-coated and has the function of a grounded base, and the second side has strip conductors. On the central conductor folded in the form of a pin, there is an input port, and grounding on the base is made on parallel sections of this conductor, along which on the outer side there are extreme long strip conductors earthed from one end to the base, wherein the output ports are located on them.;EFFECT: expansion of high-frequency band of barrier of low-frequency and high-frequency channel and increase of its miniature.;1 cl, 18 dwg
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