Abstract: The present invention relates to an integrated radio unit used in radio base stations in mobile telephony. One housing is provided for all elements of an integrated radio unit, including a functional unit and a center conductor plate. The combination of the cover and base of the housing form protective cavities for the functional unit and, simultaneously, a cavity whose shape, in combination with the center conductor plate, helps form the filter characteristics of the integrated radio unit. The design of the housing reduces the need for extensive connections between elements and also provides a cavity which, in combination with the center conductor plate, will act as a filter.