The invention discloses a multi-channel surface-mounted T / R
assembly in the field of
radio frequency microwave assemblies, which comprises a substrate, the upper surface of the substrate is fixedly connected with a
metal ring frame, and the upper part of the
metal ring frame is fixedly connected with a cover plate; the upper surface of the substrate is also provided with a plurality of grooves which are regularly distributed,
radio frequency channels are arranged in the grooves, the
radio frequency channels are electromagnetically isolated by partition walls among the grooves, and the partition walls and the substrate are made of the same material; an inner cavity is formed in the partition wall, and a
microwave transmission line is arranged in the inner cavity; and a lumped circuit is further arranged on the substrate, one end of each radio frequency channel is connected to an antenna port of the T / R
assembly, the other end of each radio frequency channel is connected to a
branch port of the lumped circuit through a
microwave transmission line, the
electrical length of each radio frequency channel is equal to that of the
microwave transmission line of the lumped circuit, and a total port of the lumped circuit is connected to a lumped port of the T / R
assembly through a total port
transmission line. According to the invention, a multi-channel comprehensive integrated structure is adopted, the usage amount of
metal materials is reduced, the internal space of the T / R assembly is fully utilized, and the effects of
miniaturization and light weight are achieved.