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Coaxial connection type attenuator

A technology of coaxial connectors and attenuators, applied in waveguide devices, electrical components, circuits, etc., can solve the problems of reducing the accuracy of attenuators, low rated power, and high cost, and achieve high frequency and high precision effects

Inactive Publication Date: 2009-02-11
YANTEL CORP
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the special resistance required by the attenuator needs to be customized, and the cost is high. If the resistance of the standard separation device is used with a similar resistance, the accuracy of the attenuator will be reduced.
In addition, the resistance of the separation device generally has a small rated power (generally rated power 0.25W), and it is generally difficult to buy high-power, small-size, high-precision resistance of the separation device on the market. , to achieve very high radio frequency characteristics, the size of the attenuator is generally required to be small, and it is difficult to achieve high power (such as tens of watts) and high frequency (above 10GHz) with discrete devices as attenuators.

Method used

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Embodiment Construction

[0029] For an attenuator, for the convenience of understanding, the resistance connected in series to the signal input and output circuit is generally called a series resistance, and the resistance connected in parallel between the signal input and output circuit and the common ground is called a parallel resistance. Here, film resistors are further divided into thick film resistors and thin film resistors. Thick film resistors are made by printing thick film resistor paste on ceramic substrates and fired at high temperature; thin film resistors are made by splashing thin film resistor paste It is shot onto the ceramic substrate and sintered at high temperature; the radio frequency characteristics of the thin-film circuit are better, and it can work to tens of GHz, but the cost is more expensive.

[0030] see figure 1 , which is a structural schematic diagram of the Pi (π) type network of the first embodiment of the coaxial connector type attenuator of the present invention. ...

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Abstract

The invention relates to a coaxial connector-type attenuator, which comprises a substrate, a signal input terminal, a signal output terminal, a coaxial connector, a metallic object, a film-shaped series resistance integrated on the substrate and at least one Pi-type network composed of a first film-shaped parallel resistance and a second film-shaped parallel resistance. The first connecting end of the first film-shaped parallel resistance of the Pi-type network is connected with the second connecting end of the second film-shaped parallel resistance by the metallic object, and then the Pi-type network is installed inside the coaxial connector to form a coaxial connector-type attenuator. The coaxial connector-type attenuator is applicable to various high frequencies and microwave circuits and systems, and has the advantages of large bandwidth, high precision, small size, easy manufacture and low cost.

Description

【Technical field】 [0001] The invention relates to an electronic and communication coaxial connector attenuator, in particular to a coaxial connector attenuator which can be used in various high-frequency and microwave circuits and systems. 【Background technique】 [0002] In the family of electronic components, attenuators are one of the basic components commonly used in circuits and systems. Fixed attenuators of the coaxial connector type have also been widely used. To make attenuators with high-precision attenuation and low reflection coefficient, it is necessary to easily make high-precision series resistors and parallel resistors. Existing attenuators are fired after one-time printing with thick film technology or fired after one-time sputtering with thin-film technology. Generally, laser trimming is used to achieve precise matching of series resistance and parallel resistance, thereby improving attenuation slice accuracy. Since the attenuator (attenuator) requires the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/22
Inventor 阎跃军
Owner YANTEL CORP
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