Radio frequency device

Abstract

The invention discloses a radio frequency device, which comprises an insulating substrate, a grounding layer, a first signal end, a second signal end, a radio frequency circuit and an impedance unit, wherein the insulating substrate comprises a first surface and a second surface; the grounding layer is arranged on the second surface of the insulating substrate and grounded; the first signal end is formed on the first surface of the insulating substrate; the second signal end is formed on the first surface of the insulating substrate and coupled to the grounding layer; the radio frequency circuit is arranged on the first surface of the insulating substrate and coupled to the first signal end; and the impedance unit is arranged on the first surface of the insulating substrate and coupled to the first signal end and the second signal end. By adoption of the radio frequency device, the labor time for adhesion of an absorber in a manual operation mode can be saved, production time is greatly shortened, and production cost is reduced.

Description

technical field [0001] The invention relates to a radio frequency device, in particular to a radio frequency device which can use an impedance unit as a transmission line terminal to reduce crosstalk noise. Background technique [0002] With the development of science and technology and the refinement of product manufacturing technology, electronic products are constantly being researched and developed towards thinner, lighter and smaller, and with the increase of product operating frequency, the effect of electromagnetic interference is becoming more and more important. With regard to countermeasures to reduce electromagnetic interference, there are many various methods available at present. For example, in radio frequency circuits, in order to overcome cross talk or suppress radiated power so as not to affect the operation of other circuits around, it is common practice to use electromagnetic absorbers to solve the aforementioned problems. [0003] Please refer to figure...

AI Technical Summary

Problems solved by technology

Generally speaking, traditionally, when manufacturing the radio frequency device 10, the industry still has to manually stick the absorber 108 to the corresponding open-circuit stub ST, which is time-consuming and labor-intensive.

On the other hand, the current circuit devices are very miniaturized, so it is very likely that due to human error, the absorber 108 cannot be accurately pasted to the corresponding position, which makes the effect of suppressing crosstalk noise or radiated power ineffective.

In addition, since the cost of the absorber 108 is relatively high, if too many absorbers 108 are used, the manufacturing cost of the radio frequency device 10 will be too high.

In other words, in the radio frequency circuit, using the absorber 108 to suppress crosstalk noise or excessive radiation power between lines will face lengthy construction time and high manufacturing cost

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