20W and 9dB attenuator with aluminium nitride ceramic baseplate
A technology of aluminum nitride ceramics and aluminum nitride substrates, which is applied in the direction of electrical components, circuits, waveguide devices, etc., can solve the problem that the impedance and attenuation accuracy deviate from the actual requirements, the attenuation accuracy cannot meet the requirements, and the high and low temperature shock resistance performance Poor and other problems, to achieve performance improvement, reduce defective products, and increase the impact resistance of high and low temperature
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[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 20-watt 9dB attenuator of the aluminum nitride ceramic substrate includes a 5*5*1MM aluminum nitride substrate 1. 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 is printed with Wire 2 and resistors R1, R2, R3, and 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 symmetrical along the center...
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