RADIO-ELECTRONIC UNIT Russian patent published in 2002 - IPC

FIELD: radio electronics; radio- electronic units such as those for receiving and processing signals from satellite radio navigation systems. SUBSTANCE: unit has multilayer printed-circuit board whose external conducting layers bear printed-circuit conductors, contact pads, electric and radio components, as well as connectors for external facilities; internal conducting layers support remaining printed-circuit conductors. Electric and radio components are grouped into regions, first one being used to dispose components for signal reception and frequency conversion; second region disposes electric and radio components for digital processing of signals. First and second shielding ground planes corresponding to first region are made in second and last but one internal conducting layers; third shielding ground plane and power plane correspond to second region. Power conductors in first region concentrated in one internal conducting layer between second and last but one internal conducting layers are made in the form of printed- circuit conductors fanning out from branching assembly disposed within limits of first zone and made in the form of equipotential floor, total number of internal conducting layers being minimum three. Center of branching assembly is connected to output lead of first power filter whose input lead is connected with aid of separate printed-circuit conductor to output lead of second power filter, the latter being also connected to power plane related to second region. EFFECT: enhanced layout density of different electric and radio components using single external power supply. 4 cl, 8 dwg