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2 242 852

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C1

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IPC

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Application

2003121374/09, 2003-07-10

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Start date

2003-07-10

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Actual filing date

2003-07-10

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Published

2004-12-20

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Inventor

Bedrin I.B.Bogdanova E.V.Ivanov V.N.Kovita S.P.Korulin V.N.Lapko A.V.Nagaev F.I.Nikitin A.V.Soldatenkov A.N.Ustinov I.V.Shebshaevich B.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Institut Radionavigatsii I Vremeni"

SIGNAL RECEIVER UNIT FOR SATELLITE RADIO NAVIGATION SYSTEMS Russian patent published in 2004 - IPC

Abstract RU 2242852 C1

FIELD: radio engineering.

SUBSTANCE: proposed unit designed for receiving signals of satellite radio navigation systems of the GLONASS, GPS, and other types has conducting case, receiver-processor board, as well as means designed for interconnecting/disconnecting input signal circuit and power circuit of active antenna assembly disposed on input board mounted on case wall at installation point of high-frequency block terminal used for connecting antenna assembly; input board is made of structural material of definite standardized dielectric constant which makes it possible to set up asymmetric microwave microstrip line on this board; disposed on one end of input board is ground plane with metal-free circle-shaped area inside, circle diameter being same as that of inner insulator of high-frequency block terminal; provided in center of this circle is metallized hole passing signal lead; disposed on other end of input board are contact pads, printed conductors, electric and radio components of electric circuit implementing interconnecting/disconnecting circuit of input signal circuit and power circuit of active antenna assembly; input board is secured so that its ground plane is in electric contact with case wall and with high-frequency block terminal body; signal lead of the latter on other end of input board is connected to contact member that functions as point of electrical interconnection/disconnection of input signal circuit and power circuit of active antenna assembly; power circuit output lead of the latter is connected to this contact member with filter element in the form of LC filter, its input and ground leads being connected to output and ground leads of supply voltage shaper for active antenna assembly disposed inside case separately from receiver-processor board; connected to same contact member is input signal circuit that has series-connected filter element in the form of capacitor and asymmetric microwave microstrip line; its output printed conductor is connected to coaxial cable central core that connects input board to receiver-processor board; cable is secured on input board so that electric contact is ensured between its uninsulated braided screen and contact pad electrically connected to ground plane. Receiver-processor of the unit is independent of power characteristics of active antenna assembly being connected.

EFFECT: eliminated stray pickups and induced noise, reduced loss in input signal line disposed beyond receiver-processor board.

1 cl, 7 dwg

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RU 2 242 852 C1

Authors

Bedrin I.B.

Bogdanova E.V.

Ivanov V.N.

Kovita S.P.

Korulin V.N.

Lapko A.V.

Nagaev F.I.

Nikitin A.V.

Soldatenkov A.N.

Ustinov I.V.

Shebshaevich B.V.

Dates

2004-12-20—Published

2003-07-10—Filed

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