UNIT FOR MATCHING SATELLITE-SYSTEM SIGNAL RECEIVER WITH ACTIVE ANTENNA Russian patent published in 2005 - IPC

FIELD: radio engineering.

SUBSTANCE: proposed unit designed for matching satellite-system signal receiver with active antenna that uses single coaxial cable for transmitting signals and supply voltage has high-voltage connector for cable running from active antenna and printed-circuit board, both secured either side of electricity conducting base so that electrical connection is provided between high-frequency connector shroud and ground strip of printed-circuit board. The latter carries circuit designed to connect/disconnect signal circuit and active antenna supply circuit to/from signal, antenna, potential, and ground leads. Ground lead is connected to ground plane. Antenna lead is connected to central lead of high-frequency connector. Central core and screening sheath of lead used for passing satellite system signals to receiver are connected to signal and ground leads. Signal circuit has first filter assembly inserted between antenna and signal leads that passes signals arriving from active antenna and does not pass supply voltage to antenna. Active-antenna power circuit has low-frequency connector whose first and second contact members form leads for connecting closing jumper in case active antenna is supplied with power from satellite-system signal receiver, and third and fourth leads for connecting bundled power conductors in case active antenna is supplied with power from power unit; signal circuit also has second and additional filter assemblies that pass, respectively, supply voltage to active antenna and do not pass signals arriving from this antenna and are connected to antenna and signal leads; their other leads are connected, respectively, to potential lead and to first contact member of low-voltage connector; potential lead is electrically connected to second and third contact members of low-voltage connector and ground lead, to its fourth contact member.

EFFECT: enlarged range of satellite-system signal receivers matched with various active antennas fed either from receiver or from separate power unit.

3 cl, 7 dwg