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Satellite broadcasting-receiving convertor

A technology for satellite broadcasting and converters, which is applied in connection devices, waveguide-type devices, structural connections of printed circuits, etc., can solve problems such as the internal complexity of the base 1

Inactive Publication Date: 2004-06-30
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, this technique has the disadvantage of complicating the interior of the base 1

Method used

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  • Satellite broadcasting-receiving convertor
  • Satellite broadcasting-receiving convertor
  • Satellite broadcasting-receiving convertor

Examples

Experimental program
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Embodiment Construction

[0021] Hereinafter, embodiments of the present invention are described in detail with reference to the accompanying drawings. First, the LNB of the first embodiment of the present invention will be described. figure 1 A schematic longitudinal sectional view showing the overall structure of the LNB of the first embodiment. figure 2 A schematic perspective plan view showing the internal structure of the LNB. image 3 A schematic longitudinal sectional view of the main elements of the LNB is shown. and Figure 9 Elements having the same names and functions as shown in the elements are referred to by the same reference numerals and thus description thereof will not be repeated. The same applies to the second and third embodiments to be described below.

[0022] Such as figure 1 and figure 2 As shown, the LNB includes a base 1 as an external structure, and has a main reflector 2 at one end thereof ( figure 1 A waveguide type reflector having a tapered electromagnetic an...

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Abstract

A satellite broadcast reception converter, having a simple structure, capable of reducing an output return loss even if a circuit board is relatively smaller than a chassis is provided. A satellite broadcast reception converter comprises a chassis in which a primary reflector into which radio wave signals received by an external parabola antenna are guided and an output terminal to be connected to an external tuner are placed at a predetermined distance from each other so that signals fed from the primary reflector are amplified and converted into intermediate-frequency output signals so as to be fed out through the output terminal, wherein the satellite broadcast reception converter further comprises a circuit board of which another end portion thereof is connected to the primary reflector and an auxiliary board of which another end portion thereof is connected to the output terminal by way of a lead wire, and wherein the circuit board and the auxiliary board are connected together at one end portions thereof and laid in a contiguous sequence in the chassis in such a manner that the circuit board is laid closer to the primary reflector and the auxiliary board is laid closer to the output terminal.

Description

technical field [0001] The present invention relates to a satellite broadcast reception converter which forms the basis of a satellite broadcast reception system together with an antenna and a tuner. More particularly, the present invention relates to a satellite broadcast receiving converter having an internal structure by which output return loss is reduced. Background technique [0002] The external parabolic antenna feeds the received high-frequency decay radio wave signal from the satellite to the satellite broadcast receiving converter (hereinafter referred to as LNB), and then the LNB amplifies the fed signal and converts the signal into a medium frequency band (common in recent years An output signal (hereinafter referred to as an IF signal) in a band in the range of about 950 MHz to 1700 MHz) is used for processing, and the output signal is fed to an external tuner. [0003] A conventional LNB having the above functions is usually formed with a base or base 1 as an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/20H01Q1/24H04B1/18H05K1/14
CPCH01Q1/247H05K1/141
Inventor 幸崎正登
Owner SHARP KK