Radio frequency heat dissipation plastic, preparation method thereof and repeater box body using radio frequency heat dissipation plastic

Abstract

A radio frequency (RF) heat dissipating plastic is provided. The radio frequency heat dissipation plastic according to one embodiment of the present invention comprises: a polymer matrix comprising a polymer resin; and a first filler dispersed in the polymer matrix and including a high-strength filler and an inorganic coating layer, the high-strength filler being a polymer having at least one hydroxyl group in a repeating unit, and the inorganic coating layer being formed on at least a portion of the surface of the high-strength filler. Accordingly, because the radio frequency heat dissipation plastic contains the first filler, the radio frequency heat dissipation plastic simultaneously shows the effects of low dielectric constant and excellent mechanical strength. Moreover, even if the composition is designed to have a low dielectric constant and excellent mechanical strength, the composition exhibits excellent heat dissipation performance due to the inclusion of the second filler for improving heat dissipation characteristics. In addition, since the first filler and the second filler have excellent dispersibility, uniform low dielectric characteristics, mechanical strength, and heat dissipation characteristics are exhibited over the entire region. According to the radio frequency heat dissipation plastic which shows uniform low dielectric characteristics, mechanical strength and heat dissipation characteristics in the whole area, performance reduction or function loss of a repeater box body which is possibly influenced in the aspect of transmitting and receiving high-frequency-band signals according to dielectric constants can be reduced to the maximum extent; therefore, the material can be widely applied to various articles in the whole industry.

Description

technical field [0001] The invention relates to a radio frequency (RF) heat dissipation plastic, and in more detail, to a radio frequency heat dissipation plastic, a preparation method thereof and a repeater box using the same. Background technique [0002] A repeater for mobile communication is a device that receives a weakened signal in the middle of a communication system, amplifies it and retransmits it, or shapes the waveform of a distorted signal and adjusts or reconfigures the transmission timing. This type of repeater was originally used only to retransmit signals, but recently it can function as a low-cost base station by saving equipment and operating costs in consideration of service coverage. [0003] On the other hand, the signals sent and received by mobile communication repeaters are radio waves. 5G, which is about to be commercialized in recent years and is under construction, uses high-frequency bands of 3.5Ghz and 28Ghz. With the use of high-frequency bands...

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Problems solved by technology

[0003] On the other hand, the signals sent and received by mobile communication repeaters are radio waves. 5G, which is about to be commercialized in recent years and is under construction, uses high-frequency bands of 3.5Ghz and 28Ghz. With the use of high-frequency bands that are significantly higher than 4G, Compared with 4G, it is necessary to install more base stations or repeaters than 4G due to the communication characteristics of lower diffraction characteristics (strong linearity) and shorter reach distance of radio waves

[0004] However, since electrical signals have the property that transmission loss increases with frequency, the development of materials with excellent high-frequency transmission characteristics is an essential element

[0005] In the case of conventional materials with high-frequency transmission characteristics, the required levels of low dielectric constant and high mechanical strength cannot be achieved at the same time, and there are technical limitations in exhibiting excellent heat dissipation properties, which cannot be exhibited uniformly over the entire area. characteristic

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