30w 24dB attenuating plate of aluminum nitride ceramic substrate

Abstract

The invention discloses a 30w 24dB attenuating plate of an aluminum nitride ceramic substrate, the 30w 24dB attenuating plate comprises an aluminum nitride substrate in size of 5mm*5mm*1mm, wherein the back surface of the aluminum nitride substrate is printed with a back conductor layer, and the front surface of the aluminum nitride substrate is printed with a lead and a resistor, wherein the lead is drawn out from the centre of a pad, and the lead is connected with the resistor so as to form a TT (telegraphic transfer) type attenuating circuit which is symmetrical along the centre line of the aluminum nitride substrate; the output end and the input end of the attenuating circuit are respectively connected with one bonding pad. Each performance index of the attenuating plate is sufficiently considered in design so as to make the attenuating plate non-inductive at high efficiency, so that the situation that the original attenuating plate is applied to the low frequency only is broken, the application requirement of the current 3G (third-generation) network is met, and the series product line of the 30w fixed resistor type attenuating plate is extended.

Description

Technical field

[0001] The invention relates to an aluminum nitride ceramic substrate attenuation sheet, in particular to an aluminum nitride ceramic substrate attenuation sheet of 30 watts and 24 dB. Background technique

[0002] At present, most communication base stations use high-power ceramic load sheets to absorb the reverse input power in the communication components. High-power ceramic load sheets can only consume and absorb excess power, and cannot monitor the working status of the base station in real time. , When the base station fails to make a judgment in time, it has no protective effect on the equipment. The attenuator with three resistance designs can not only absorb the reverse input power in the communication component in the communication base station, but also adjust the power level on the high-frequency circuit, decoupling, and protect the related equipment.

[0003] As aluminum nitride ceramics is still an emerging industry, there is no diversified pattern in...

Examples

Embodiment Construction

[0013] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the 30-watt 24dB attenuation film of the aluminum nitride ceramic substrate includes an aluminum nitride substrate 1 with a size of 5*5*1MM. The back surface of the aluminum nitride substrate 1 is printed with a back conductive layer, and the front surface of the aluminum nitride substrate 1 There are printed wires 2 and resistors R1, R2, R3. The resistors R1, R2, R3 are connected by wires to form an attenuation circuit, and the attenuation circuit is electrically connected to the back conductive layer through silver paste, so that the attenuation circuit is connected to ground. The attenuation circuit is symmetrical along the center line of the aluminum nitride substrate. The output end of the attenuation circuit is connected to a pad 5, the input end is connected to a pad 6, and the two pads 5 and 6 are sy...

Technical field

[0001] The invention relates to an aluminum nitride ceramic substrate attenuation sheet, in particular to an aluminum nitride ceramic substrate attenuation sheet of 30 watts and 24 dB. Background technique

[0002] At present, most communication base stations use high-power ceramic load sheets to absorb the reverse input power in the communication components. High-power ceramic load sheets can only consume and absorb excess power, and cannot monitor the working status of the base station in real time. , When the base station fails to make a judgment in time, it has no protective effect on the equipment. The attenuator with three resistance designs can not only absorb the reverse input power in the communication component in the communication base station, but also adjust the power level on the high-frequency circuit, decoupling, and protect the related equipment.

[0003] As aluminum nitride ceramics is still an emerging industry, there is no diversified pattern in...

Examples

Embodiment Construction

[0013] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the 30-watt 24dB attenuation film of the aluminum nitride ceramic substrate includes an aluminum nitride substrate 1 with a size of 5*5*1MM. The back surface of the aluminum nitride substrate 1 is printed with a back conductive layer, and the front surface of the aluminum nitride substrate 1 There are printed wires 2 and resistors R1, R2, R3. The resistors R1, R2, R3 are connected by wires to form an attenuation circuit, and the attenuation circuit is electrically connected to the back conductive layer through silver paste, so that the attenuation circuit is connected to ground. The attenuation circuit is symmetrical along the center line of the aluminum nitride substrate. The output end of the attenuation circuit is connected to a pad 5, the input end is connected to a pad 6, and the two pads 5 and 6 are sy...

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