Coaxial connector type fixed attenuator

A technology of coaxial connectors and fixed attenuators, applied in impedance networks, electrical components, multi-terminal pair networks, etc., can solve the problems of low frequency characteristics, high cost, and high manufacturing process requirements, and achieve low manufacturing costs and low reflection coefficients. Small, low-cost effects

Inactive Publication Date: 2009-05-27
阎 跃军 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the internal chip of the existing coaxial connector type attenuator is generally made of thin film technology, which has high cost and high manufacturing process requirements, such as laser trimming
Thick film technology is also used to make attenuator chips, but due to the limitations of the manufacturing process, its frequency characteristics are not wide. To ensure high-performance attenuator chips with broadband and small reflection coefficients, laser resistance adjustment is also used. cost will be high

Method used

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  • Coaxial connector type fixed attenuator
  • Coaxial connector type fixed attenuator
  • Coaxial connector type fixed attenuator

Examples

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Embodiment Construction

[0022] see figure 1 , which is a structural schematic diagram of the first embodiment of the coaxial connector type fixed attenuator of the present invention. It can be mainly broken down into Figure 1a , Figure 1b , Figure 1c and Figure 1d . see Figure 1a , which is a schematic diagram of three discrete chip resistors 4, 5, and 6 installed on the base 1 of the coaxial connector type fixed attenuator to form a π-type network. The π-type network is a two-way symmetrical broadband network. In the π-type network, the resistor 4 connecting the signal input and output terminals is generally called a series resistor, and the resistor 5 connecting the signal input terminal 2 and the common ground terminal 7 is connected to the signal output terminal 3. The resistor 6 and the common ground terminal 7 are collectively referred to as a parallel resistor. In a radio frequency circuit, the π-type network can also be called a π-type attenuator. In this embodiment, the signal in...

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Abstract

The invention relates to a coaxial connector type fixed attenuator which comprises a basal body, an attenuator which is manufactured on the basal body by three discrete resistors, and the input end, the output end and the common earthed end of the attenuator; the attenuator manufactured on the basal body is positioned in the coaxial connector; and a coaxial signal of the inside of the coaxial connector runs through the input end and the output end of the attenuator and are connected with an external signal end respectively. The basal body of the attenuator is fixed inside a hollow metal column; the inside of the metal column is also provided with two grooves for fixing the basal body of the attenuator; two metal washers are arranged between the basal body of the attenuator and the grooves; through the washers, the common earthed end of the basal body of the attenuator is contacted with the hollow metal column; and the hollow metal column is contacted with a shell of the coaxial connector. The coaxial connector type fixed attenuator is suitable for various high-frequency and microwave circuits and systems and has the characteristics of wide frequency band, small size, easy manufacture and low cost.

Description

【Technical field】 [0001] The invention relates to an electronic and communication coaxial connector type fixed attenuator, in particular to a coaxial connector type fixed 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. However, the internal chip of the existing coaxial connector type attenuator is generally made of thin film technology, which has high cost and high requirements for the manufacturing process, such as laser trimming. Thick film technology is also used to make attenuator chips, but due to the limitations of the manufacturing process, its frequency characteristics are not wide. To ensure high-performance attenuator chips with broadband and small reflection coefficients, laser resistance adjus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/00H03H7/24
Inventor 阎跃军阎跃鹏
Owner 阎 跃军
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