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Multi-layer substrate and satellite transmission receiver

A multi-layer substrate and receiving device technology, which is applied in connection devices, multi-layer circuit manufacturing, antenna support/mounting devices, etc., can solve the problems of increasing the loss of transmission characteristics of special receiving frequency bands, poor transmission characteristics of LNB inverters, etc.

Inactive Publication Date: 2003-10-22
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Thus, the probe, which receives the electrical signal from the waveguide using a part thereof, as a part separate from the circuit board increases the loss of the transmission characteristics of the special reception frequency band, causing the LNB inverter to provide poor transmission characteristics

Method used

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  • Multi-layer substrate and satellite transmission receiver
  • Multi-layer substrate and satellite transmission receiver
  • Multi-layer substrate and satellite transmission receiver

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0045] figure 1 Shown is the LNB frequency converter 30, which includes: a receiving part 16, which receives a weak signal transmitted by a satellite; a waveguide 13, which propagates the received signal; a four-layer substrate 10; a probe 20, which is welded on the substrate substantially vertically , and receives the propagated signal, which is then passed to a low noise amplifier. The probes 20 pass through the substrate 10 through holes 10a provided in the substrate for connecting the probes and accommodated by holes 11a provided in the base 11 for receiving the probes.

[0046] The four-layer substrate includes a topmost or first layer pattern 1, a second layer pattern 2 below the first layer pattern 1, a third layer pattern 3 below the second layer pattern 2, and a third layer pattern below the third layer pattern. The fourth layer pattern 4, and the dielectric layers 5, 6 and 7 placed between the respective pattern layers. Such as figure 2 with 3 As shown in , the...

no. 2 example

[0049] Image 6 with 7 Shown are the third and fourth pattern layers of the four-layer substrate of the LNB frequency converter of the present invention, and the dielectric layers covering the respective pattern layers. The pattern layer and the covering dielectric layer have a large open area including a probe hole, a via hole for connecting the probe and a region surrounding the hole, which can provide improved transmission characteristics. Although a rectangular opening area is provided in the first embodiment, Image 6 with 7 The circular opening area shown can be as effective as the first embodiment.

no. 3 example

[0051] Figure 8 with 9 Shown are the third and fourth pattern layers of the four-layer substrate of the LNB frequency converter of the present invention, and the dielectric layers respectively covering the pattern layers. refer to Figure 8 , the third layer pattern has probe holes 10 surrounded by via lands 3b that are electrically isolated from the external patterns of the third layer. This section is related to Figure 4 Portion 2b of the probe holes shown around the pattern of the second layer is similar. The fourth layer pattern has probe holes surrounded by electrically isolated via lands 4b, and the ground pattern outside the via lands 4b has a rectangular area 4f with a long side of 9mm and a short side of 7mm, and the rectangular area 4f It is electrically isolated from the further surrounding area 4a. An isolation zone having a width of 0.2 mm is provided between the rectangular isolated area 4f and the outer ground pattern area 4a. This area is provided with ...

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Abstract

There can be provided an LNB converter including a multilayer substrate formed of more than two layers, capable of providing adequate transit characteristic for any frequency, and a multilayer substrate. A microstrip line is provided at one surface layer's pattern (1) and a second layer's pattern (2) cooperating with the surface layer's pattern to sandwich a dielectric layer underlying the surface layer's pattern. A probe is inserted from the surface layer's pattern in a direction intersecting a 4-layer substrate and in at least one pattern layer other than the first and second, pattern layers at least a region surrounding a hole (10a) having a probe passing therethrough is either a pattern-free region (3c, 4c) provided by removing a predetermined region surrounding the hole or an isolated region corresponding to a predetermined region surrounding the hole and electrically isolated from an outer region of the pattern layer.

Description

technical field [0001] The present invention relates to a multi-layer substrate and a satellite transmission and reception device comprising the multi-layer substrate. The satellite transmission and reception device receives weak electric waves from the satellite, amplifies the electric waves through a low-noise amplifier, converts the electric waves into medium frequency signals and It is amplified (hereinafter referred to as a low noise block-down (LNB: low noise block-down) frequency converter (convener)). Background technique [0002] Figure 43 An exploded view showing an example of the configuration of the LNB inverter 130 for reception of polarized waves. The weak signal transmitted by the satellite is received by the electric wave receiving section 116 . The received signal propagates through the waveguide 113 and is received by the probe 120 soldered substantially vertically to the double-sided substrate 110, and then transmitted to the low noise amplifier. The pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/46H01P5/103H01P5/107H01Q1/24
CPCH01Q1/247
Inventor 今井孝雄
Owner SHARP KK