Novel broadband filter tap

Abstract

Disclosed in the invention is a novel broadband filter tap comprising a resonance rod (6), a cavity (4), an aluminum cover plate (3), a silver-plated copper screw (2) and a radio frequency connector (5). The radio frequency connector (5) includes a radio frequency connector inner core (8); and a casing tube is arranged on the radio frequency connector inner core (8). A through hole (10) is formed in the resonance rod (6); the radio frequency connector inner core (8) is connected with the resonance rod (6) by the through hole (10); and the silver-plated copper screw (2) extends into the resonance rod (6). According to the filter tap, the filter bandwidth is effectively extended, so that multiple signals on one filter device can be realized well; tin soldering of the tap and the connector is not employed, so that the intermodulation index of the cavity filter can be well improved and the overall quality of the product can be enhanced; and the assembling is simple and the manual cost is saved.

Description

technical field [0001] The invention relates to the filter field, in particular to a novel broadband filter tap. Background technique [0002] With the continuous development of communication technology, multi-standard communication signals are used by the public. In this way, according to the original technical means, multiple communication devices are needed to realize signal transmission, which causes a waste of resources. However, using In the existing technology, it is very difficult to design multiple signals in one cavity filter. Such as figure 1 As shown, the taps of the existing broadband filters are realized by directly welding the silver-plated copper wires on the resonator bar. Using this method to realize the taps of the filters has the following disadvantages: 1. Welding the silver-plated copper wires can realize The bandwidth of the filter is limited; 2. Increased labor costs; 3. The product intermodulation index is not easy to achieve and control. Content...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of communication technology, multi-standard communication signals are used by the public. In this way, according to the original technical means, multiple communication devices are needed to realize signal transmission, which causes a waste of resources. However, using In the existing technology, it is very difficult to design multiple signals in one cavity filter

like figure 1 As shown, the taps of the existing broadband filters are realized by directly welding the silver-plated copper wires on the resonator bar. Using this method to realize the taps of the filters has the following disadvantages: 1. Welding the silver-plated copper wires can realize The bandwidth of the filter is limited; 2. Increased labor costs; 3. The intermodulation index of the product is not easy to achieve and control, etc.

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