Abstract: In a radio-frequency circuit module, the surfaces for mounting the MIC, MMIC, or the like are separated into a plurality of planes and the separated planes are connected either by a coupling window or via a through hole. An RF connector for antenna connection is placed on a different surface as those of the other RF connectors. Alternatively, a radiator section of an antenna can be placed and formed on one plane of the radio-frequency circuit module. The mounting of the MIC, MMIC, or the like is realized by wire bonding or by bumps. The RF connectors are connected in a pseudo-coaxial line.