Abstract: A wireless communication base station assembly includes at least one base band unit (40) having one primary circuit board (100) with circuitry for a control function (102), a timing function (104), a line interface function (106) and a radio interface function (108). The electronics and circuitry for each of these functions are all supported on the one primary circuit board (100). At least one channel module (e.g., a channel card) is coupled to the primary circuit board. A single, generally rectangular housing (42) contains the primary circuit board and the channel module. Disclosed examples include a rack (50) having a plurality of slots (52) configured to accommodate the housing (42).

Abstract: A wireless communication base station assembly includes at least one base band unit (40) having one primary circuit board (100) with circuitry for a control function (102), a timing function (104), a line interface function (106) and a radio interface function (108). The electronics and circuitry for each of these functions are all supported on the one primary circuit board (100). At least one channel module (e.g., a channel card) is coupled to the primary circuit board. A single, generally rectangular housing (42) contains the primary circuit board and the channel module. Disclosed examples include a rack (50) having a plurality of slots (52) configured to accommodate the housing (42).

Abstract: A multi-layer backplane for processing radio frequency (RF) and other signals has alternating layers of conductive traces for RF signals and other types of signals, and ground plane layers of conductive material electrically insulated from each other. The backplane upper layer has a plurality of coaxial connectors for connection of cables and other devices which supply RF energy signals to and convey them from the backplane, with each connector having a center pin extending into the backplane to make electrical contact with a trace of a selected trace layer. A ground plane cap layer of electrically conductive material is provided below the last ground plane layer associated with a trace layer and beneath the coaxial connector center pins for preventing leakage of radio frequency energy between the center pins. A row of conductive vias can be provided along one or more sides of a trace carrying RF energy.