4dB attenuator with 100w power capacity

Abstract

The invention discloses a 4dB attenuator with a 100w power capacity. The attenuator comprises an aluminum nitride ceramic substrate 8.9mm in length, 5.7mm in width and 1.0mm in thickness. A silver paste back conduction layer is printed on the back of the aluminum nitride ceramic substrate. A sliver paste wire is printed on the front of the aluminum nitride ceramic substrate. The sliver paste wire is communicated with a whole circuit through black resistors printed. The areas of the black resistors are differed according to different absorbing powers. The black resistors are made by double silk-screen printing. The sliver paste back conduction layer and the sliver paste wire are communicated through end ground paste which is sliver paste. According to the design concept, the attenuator has the advantages that the fact that the attenuator attenuates power absorptions of the resistors from input to output is considered, the area of each resistor is defined, the trend of the sliver paste wire is optimized, standing wave of the circuit is improved, a precise attenuation is obtained by precisely correcting a resistance, indicators of the attenuator are all excellent, and the requirement for application in the existing 4G network is met.

Description

technical field

[0001] The invention relates to a power attenuation sheet, in particular to a 4dB attenuation sheet with a power capacity of 100 watts. Background technique

[0002] At present, most communication base stations use high-power ceramic load chips to absorb the reverse input power of communication components. High-power ceramic load chips can only simply consume and absorb excess power, but cannot monitor the working conditions of the base station in real time. When the base station fails, it cannot make a timely judgment and has no protective effect on the equipment. The attenuation sheet can not only absorb the reverse input power of the communication components in the communication base station, but also extract part of the signal in the communication components, and monitor the base station in real time, thus forming an effective protection for the equipment.

[0003] As a power consumption component, the attenuator cannot affect the circuits at both ends, ...

Examples

Embodiment Construction

[0012] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] like figure 1 As shown, the 4dB attenuator with a power capacity of 100 watts includes an aluminum nitride substrate 1, and a conductive layer is printed on the back of the aluminum nitride substrate 1, and the conductive layer is printed by printing silver paste. The front side of the aluminum nitride substrate 1 is printed with resistors R1, R2, R3, R4, R5 and silver paste wires 2. The resistors R1, R2, R3, R4, and R5 connect the silver paste wires 2 to form an attenuation circuit. The resistors R1, R2 , R3, R4, and R5 are all printed with a glass protective film 3, and the glass protective film 3 is used to protect the resistors R1, R2, R3, R4, and R5. Also be printed with one deck protective film 4 on the upper surface of whole circuit i.e. silver paste conductor 2 and glass protective film 3, on protective film 4, be printed with...

technical field

[0001] The invention relates to a power attenuation sheet, in particular to a 4dB attenuation sheet with a power capacity of 100 watts. Background technique

[0002] At present, most communication base stations use high-power ceramic load chips to absorb the reverse input power of communication components. High-power ceramic load chips can only simply consume and absorb excess power, but cannot monitor the working conditions of the base station in real time. When the base station fails, it cannot make a timely judgment and has no protective effect on the equipment. The attenuation sheet can not only absorb the reverse input power of the communication components in the communication base station, but also extract part of the signal in the communication components, and monitor the base station in real time, thus forming an effective protection for the equipment.

[0003] As a power consumption component, the attenuator cannot affect the circuits at both ends, ...

Examples

Embodiment Construction

[0012] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] like figure 1 As shown, the 4dB attenuator with a power capacity of 100 watts includes an aluminum nitride substrate 1, and a conductive layer is printed on the back of the aluminum nitride substrate 1, and the conductive layer is printed by printing silver paste. The front side of the aluminum nitride substrate 1 is printed with resistors R1, R2, R3, R4, R5 and silver paste wires 2. The resistors R1, R2, R3, R4, and R5 connect the silver paste wires 2 to form an attenuation circuit. The resistors R1, R2 , R3, R4, and R5 are all printed with a glass protective film 3, and the glass protective film 3 is used to protect the resistors R1, R2, R3, R4, and R5. Also be printed with one deck protective film 4 on the upper surface of whole circuit i.e. silver paste conductor 2 and glass protective film 3, on protective film 4, be printed with...

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