High-precision 100-watt 14dB attenuation plate

Abstract

The invention discloses a high-precision 100-watt 14dB attenuation plate. The high-precision 100-watt 14dB attenuation plate comprises an aluminum nitride substrate which is 5.7 mm wide, 8.8 mm long and 1.0 mm thick, a back conducting layer is printed on the back face of the aluminum nitride substrate, a wire and film-like resistors are printed on the front face of the aluminum nitride substrate, the wire is connected with the film-like resistors to form a TT type attenuation circuit, the attenuation circuit is symmetric about the centerline of the aluminum nitride substrate, the output end and the input end of the attenuation circuit are respectively connected with a bonding pad, and the bonding pads are symmetric about the centerline of the aluminum nitride substrate. According to the design of the attenuation plate, various performance indexes are fully considered, the high-frequency and noninductive purposes are achieved, the situation that an original attenuation plate can only be applied to low frequency is broken, the application requirements of a current 4G network can be met, and meanwhile a series product line of 100-watt fixed film-like resistor type attenuation plates is extended.

Description

technical field

[0001] The invention relates to an attenuation sheet, in particular to a high-precision 100-watt 14dB attenuation sheet. Background technique

[0002] At present, the attenuator integrated with five film resistors is widely used in aviation, aerospace, radar, radio, broadcast communication and other equipment fields. The use of a load chip can only simply consume and absorb excess power, while the use of an attenuator can absorb the reverse input power while extracting the required signal for analysis, and adjust the power level on the high-frequency circuit, decoupling, and related The device plays a protective role.

[0003] Since the research and development and manufacture of similar products in foreign countries started earlier than domestic ones, they are in an advantageous position both in product series and product characteristics. At the same time, the existing attenuators in the domestic market have low attenuation accuracy, and the usable frequen...

Examples

Embodiment Construction

[0013] 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 high-precision 100-watt 14dB attenuator 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 wire 2, and the silver paste wire 2 connects the resistors R1, R2, R3, R4, R5 to form a TT-shaped attenuation circuit. A protective glass film 3 is printed on the resistors R1, R2, R3, R4, and R5, and the protective glass film 3 is used to protect the resistors R1, R2, R3, R4, and R5. The upper surface of the whole circuit, that is, the silver paste conductor 2 and the glass protective film 3 is also printed with one deck of black protective film 4, and then printed with...

technical field

[0001] The invention relates to an attenuation sheet, in particular to a high-precision 100-watt 14dB attenuation sheet. Background technique

[0002] At present, the attenuator integrated with five film resistors is widely used in aviation, aerospace, radar, radio, broadcast communication and other equipment fields. The use of a load chip can only simply consume and absorb excess power, while the use of an attenuator can absorb the reverse input power while extracting the required signal for analysis, and adjust the power level on the high-frequency circuit, decoupling, and related The device plays a protective role.

[0003] Since the research and development and manufacture of similar products in foreign countries started earlier than domestic ones, they are in an advantageous position both in product series and product characteristics. At the same time, the existing attenuators in the domestic market have low attenuation accuracy, and the usable frequen...

Examples

Embodiment Construction

[0013] 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 high-precision 100-watt 14dB attenuator 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 wire 2, and the silver paste wire 2 connects the resistors R1, R2, R3, R4, R5 to form a TT-shaped attenuation circuit. A protective glass film 3 is printed on the resistors R1, R2, R3, R4, and R5, and the protective glass film 3 is used to protect the resistors R1, R2, R3, R4, and R5. The upper surface of the whole circuit, that is, the silver paste conductor 2 and the glass protective film 3 is also printed with one deck of black protective film 4, and then printed with...

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