阅读说明：本技术 基于sar的5g高频人体模拟组织液 (SAR-based 5G high-frequency human body simulated tissue fluid ) 是由 周敏 于 2020-12-09 设计创作，主要内容包括：本发明提供一种基于SAR的5G高频人体模拟组织液,其组分包括二乙二醇一己醚、聚乙二醇辛基苯基醚和蒸馏水,所述5G高频人体模拟组织液中各组分的质量比范围为：二乙二醇一己醚占比8％～14％、聚乙二醇辛基苯基醚占比10％～22％；蒸馏水占比64％～82％。通过二乙二醇一己醚、聚乙二醇辛基苯基醚和蒸馏水三种组分的质量比匹配,使得得到的人体模拟组织液能够满足5G高频频段的SAR测试。由于组分简单、原料易于取得且成本较低,使得在SAR测试使用时可以即时调配,同时还能够在人体模拟组织液的介电常数或电导率出现异常时及时更改各组分的占比而对人体模拟组织液进行修正。解决了现有人体模拟组织液成本高且修正不便的问题。(The invention provides a 5G high-frequency human body simulated tissue fluid based on SAR, which comprises the components of diethylene glycol-hexyl ether, polyethylene glycol octyl phenyl ether and distilled water, wherein the mass ratio range of each component in the 5G high-frequency human body simulated tissue fluid is as follows: diethylene glycol monohexyl ether accounts for 8-14% and polyethylene glycol octyl phenyl ether accounts for 10-22%; the proportion of the distilled water is 64 to 82 percent. The obtained human body simulated tissue fluid can meet the SAR test of a 5G high-frequency band by matching the mass ratio of the diethylene glycol-hexyl ether, the polyethylene glycol octyl phenyl ether and the distilled water. The components are simple, the raw materials are easy to obtain, and the cost is low, so that the components can be prepared in time when the SAR test is used, and meanwhile, the proportion of each component can be changed in time when the dielectric constant or the conductivity of the human body simulated tissue fluid is abnormal, so that the human body simulated tissue fluid is corrected. The problem of current human simulation tissue fluid with high costs and revise inconvenience is solved.)

1. The SAR-based 5G high-frequency human body simulated tissue fluid is characterized in that components of the 5G high-frequency human body simulated tissue fluid comprise diethylene glycol monohexyl ether, polyethylene glycol octyl phenyl ether and distilled water, and the mass ratio range of each component in the 5G high-frequency human body simulated tissue fluid is as follows: the diethylene glycol monohexyl ether accounts for 8-14% and the polyethylene glycol octyl phenyl ether accounts for 10-22%; the proportion of the distilled water is 64-82%.

2. The SAR-based 5G high-frequency human simulated interstitial fluid of claim 1, wherein the CAS number of the diethylene glycol monohexyl ether is 112-59-4.

3. The SAR-based 5G high-frequency human body simulated tissue fluid as claimed in claim 1, wherein the CAS number of the polyethylene glycol octylphenyl ether is 9036-19-5.

4. The SAR-based 5G high-frequency human body simulated interstitial fluid of claim 1, wherein the diethylene glycol monohexyl ether is used for reducing conductivity and increasing dielectric constant; the polyethylene glycol octyl phenyl ether is used for increasing the conductivity and reducing the dielectric constant; the distilled water is used for reducing the conductivity and increasing the dielectric constant.

5. The SAR-based 5G high-frequency human body simulated tissue fluid as claimed in claim 1, wherein the 5G high-frequency human body simulated tissue fluid comprises a 5G high-frequency human body simulated tissue fluid, and the 5G high-frequency human body simulated tissue fluid comprises the following components in percentage by mass: the diethylene glycol monohexyl ether accounts for 10% +/-2%, and the polyethylene glycol octyl phenyl ether accounts for 12% +/-2%; the distilled water accounts for 78% +/-4%.

6. The SAR-based 5G high-frequency human body simulated tissue fluid as claimed in claim 5, wherein the 5G high-frequency human body simulated tissue fluid comprises the following components in percentage by mass: the diethylene glycol monohexyl ether accounts for 10% + -1%, and the polyethylene glycol octyl phenyl ether accounts for 12% + -1%; the distilled water accounts for 78% +/-2%.

7. The SAR-based 5G high-frequency human body simulated tissue fluid as claimed in claim 5, wherein the dielectric constant of the 5G high-frequency human body simulated tissue fluid is 48.4-49.6F/m within the frequency band of 5.1 GHz-5.8 GHz, and the conductivity is 5.2-6.3S/m.

8. The SAR-based 5G high-frequency human body simulated interstitial fluid as claimed in claim 1, wherein the 5G high-frequency human body simulated interstitial fluid comprises a 5G high-frequency head human body simulated interstitial fluid, and the mass ratio range of each component in the 5G high-frequency head human body simulated interstitial fluid is as follows: the proportion of the diethylene glycol monohexyl ether is 12% +/-2%, and the proportion of the polyethylene glycol octyl phenyl ether is 20% +/-2%; the distilled water accounts for 68% +/-4%.

9. The SAR-based 5G high-frequency human body simulated interstitial fluid as claimed in claim 8, wherein the 5G high-frequency head human body simulated interstitial fluid comprises the following components in percentage by mass: the diethylene glycol monohexyl ether accounts for 12% +/-1%, and the polyethylene glycol octyl phenyl ether accounts for 20% +/-1%; the distilled water accounts for 68% +/-2%.

10. The SAR-based 5G high-frequency human body simulated tissue fluid as claimed in claim 8, wherein the dielectric constant of the 5G high-frequency head human body simulated tissue fluid in a frequency band of 5.1 GHz-5.8 GHz ranges from 35.4F/m to 36.1F/m, and the conductivity ranges from 4.0S/m to 5.5S/m.

Technical Field

The invention relates to the technical field of wireless communication, in particular to a 5G high-frequency human simulated tissue fluid based on SAR.

Background

Since various organs of the human body are lossy media, the electromagnetic field in the body will generate electric currents, resulting in absorption and dissipation of electromagnetic energy, and SAR is commonly used in biological dosimetry to characterize this physical process. The SAR is called Specific Absorption Rate in English, Chinese is generally called electromagnetic wave Absorption ratio or Specific Absorption Rate, the unit is W/kg, and the SAR is defined as: under the action of the external electromagnetic field, an induced electromagnetic field is generated in the human body.

Along with the development of wireless communication technology, intellectualization is more and more popularized, and people can pay more attention to the influence of electromagnetic radiation generated by a wireless communication terminal on human health while enjoying various convenience brought by wireless communication equipment. Generally, in the process of designing an antenna, the influence of electromagnetic radiation generated by a wireless communication terminal on a human body is evaluated through an index SAR. The larger the SAR value, the larger the influence on the human body.

Standards for SAR are set by each country for radio equipment. For example, China, Europe, Japan require SAR limit of 2.0W/Kg; the standard safety value of mobile phone, which is published by the federal commission of the united states, korea and australia according to the united states of america (FCC), is 1.6W/Kg, and therefore, the SAR value is within the standard safety as long as it is below the limit standard.

At present, when the SAR value of the wireless communication equipment is tested, a human body simulated tissue fluid is generally utilized to simulate a real human body for testing. Since wireless communication devices have one or more different frequency bands, multiple body fluids are typically required to match the corresponding frequency bands. Table 1 shows dielectric constants ∈ and conductivities σ required for human body-simulated interstitial fluids of the head and body corresponding to the partial frequency bands.

TABLE 1 dielectric constant ε and conductivity σ required for human body-simulated interstitial fluid of head and body corresponding to partial frequency band

At present, most human body simulated tissue fluid formulas are in a secrecy stage, so in order to carry out SAR testing, the prepared human body simulated tissue fluid corresponding to a testing frequency band is generally purchased at a high price; in addition, the dielectric constant and the conductivity of the human body simulated tissue fluid can change after the human body simulated tissue fluid is frequently used for a period of time, and the accuracy of an SAR test result can be influenced; and, the human body simulated tissue fluid has higher requirements on storage conditions and has shorter shelf life. These not only result in the human body to simulate tissue fluid's higher price, and then make SAR test's cost higher, still make human body simulate tissue fluid if appear dielectric constant or conductivity abnormity can't in time revise when SAR test uses.

Disclosure of Invention

The invention aims to provide a 5G high-frequency human body simulated tissue fluid based on an SAR (synthetic aperture radar), which aims to solve the problems of high cost and inconvenient correction of the existing human body simulated tissue fluid.

In order to solve the technical problems, the invention provides a 5G high-frequency human body simulated tissue fluid based on SAR, the components of the 5G high-frequency human body simulated tissue fluid comprise diethylene glycol monohexyl ether, polyethylene glycol octyl phenyl ether and distilled water, and the mass ratio range of each component in the 5G high-frequency human body simulated tissue fluid is as follows: 8% -14% of diethylene glycol monohexyl ether and 10% -22% of polyethylene glycol octyl phenyl ether; the distilled water accounts for 64-82 percent.

Optionally, in the SAR-based 5G high-frequency human body simulated tissue fluid, the CAS number of the diethylene glycol monohexyl ether is 112-59-4.

Optionally, in the SAR-based 5G high-frequency human body simulated tissue fluid, the CAS number of the polyethylene glycol octyl phenyl ether is 9036-19-5.

Optionally, in the SAR-based 5G high-frequency human body simulated tissue fluid, the diethylene glycol monohexyl ether is used for reducing the conductivity and increasing the dielectric constant; the polyethylene glycol octyl phenyl ether is used for increasing the electric conductivity and reducing the dielectric constant; the distilled water is used for reducing the conductivity and increasing the dielectric constant.

Optionally, in the SAR-based 5G high-frequency human body simulation interstitial fluid, the 5G high-frequency human body simulation interstitial fluid includes a 5G high-frequency human body simulation interstitial fluid, and the 5G high-frequency human body simulation interstitial fluid includes the following components by mass: the diethylene glycol monohexyl ether accounts for 10% + -2%, and the polyethylene glycol octyl phenyl ether accounts for 12% + -2%; the distilled water accounts for 78% +/-4%.

Optionally, in the SAR-based 5G high-frequency human body simulated tissue fluid, the mass ratio range of each component in the 5G high-frequency human body simulated tissue fluid is as follows: the diethylene glycol monohexyl ether accounts for 10% + -1%, and the polyethylene glycol octyl phenyl ether accounts for 12% + -1%; the distilled water accounts for 78% +/-2%.

Optionally, in the SAR-based 5G high-frequency human body simulated tissue fluid, the dielectric constant range of the 5G high-frequency human body simulated tissue fluid in a frequency band of 5.1GHz to 5.8GHz is 48.4 to 49.6F/m, and the conductivity range is 5.2 to 6.3S/m.

Optionally, in the SAR-based 5G high-frequency human body simulation interstitial fluid, the 5G high-frequency human body simulation interstitial fluid includes a 5G high-frequency head human body simulation interstitial fluid, and the 5G high-frequency head human body simulation interstitial fluid includes the following components by mass ratio: the proportion of the diethylene glycol monohexyl ether is 12% +/-2%, and the proportion of the polyethylene glycol octyl phenyl ether is 20% +/-2%; the distilled water accounts for 68% +/-4%.

Optionally, in the SAR-based 5G high-frequency human body simulated interstitial fluid, the 5G high-frequency head human body simulated interstitial fluid includes the following components by mass: the proportion of the diethylene glycol monohexyl ether is 12% +/-1%, and the proportion of the polyethylene glycol octyl phenyl ether is 20% +/-1%; the distilled water accounts for 68% +/-2%.

Optionally, in the SAR-based 5G high-frequency human body simulated tissue fluid, the dielectric constant range of the 5G high-frequency head human body simulated tissue fluid in a frequency band of 5.1GHz to 5.8GHz is 35.4 to 36.1F/m, and the conductivity range is 4.0 to 5.5S/m.

The invention provides SAR-based 5G high-frequency human body simulated tissue fluid which comprises the components of diethylene glycol monohexyl ether, polyethylene glycol octyl phenyl ether and distilled water, wherein the mass ratio range of each component in the 5G high-frequency human body simulated tissue fluid is as follows: the diethylene glycol monohexyl ether accounts for 8-14% and the polyethylene glycol octyl phenyl ether accounts for 10-22%; the proportion of the distilled water is 64-82%. The obtained human body simulated tissue fluid can meet the SAR test of a 5G high-frequency band by matching the mass ratio of the diethylene glycol-hexyl ether, the polyethylene glycol octyl phenyl ether and the distilled water. The components are simple, the raw materials are easy to obtain, and the cost is low, so that the components can be prepared in time when the SAR test is used, and the proportion of each component can be timely changed to correct the human body simulated tissue fluid when the dielectric constant or the conductivity of the human body simulated tissue fluid is abnormal. Solves the problems of high cost and inconvenient correction of the existing human body simulated tissue fluid.

Drawings

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Detailed Description

The SAR-based 5G high-frequency human body simulated tissue fluid provided by the invention is further described in detail by combining specific embodiments. It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in table 1 above, in the SAR test, human body simulated tissue fluids with different dielectric constants and conductivities need to be configured for different frequency band ranges. The formula of the human body simulated tissue fluid is mostly the trade secret of a supplier and is not known by the outside. Therefore, the purchase price of the human body simulated tissue fluid is high, and the human body simulated tissue fluid cannot be corrected and only can be discarded when the dielectric constant or the conductivity of the human body simulated tissue fluid is abnormal.

In view of the above, the present embodiment provides a simple and easily prepared SAR-based 5G high frequency human body tissue-mimicking fluid, wherein the components of the 5G high frequency human body tissue-mimicking fluid include diethylene glycol monohexyl ether (C)₁₀H₂₂O₃) Polyethylene glycol octyl phenyl ether (C)₁₈H₃₀O₃) And distilled water (H)₂O), the mass ratio range of each component in the 5G high-frequency human body simulated tissue fluid is as follows: the diethylene glycol monohexyl ether accounts for 8-14% and the polyethylene glycol octyl phenyl ether accounts for 10-22%; the proportion of the distilled water is 64-82%.

The SAR-based 5G high-frequency human body simulated tissue fluid provided by the embodiment is matched with the distilled water through the mass ratio of the diethylene glycol-hexylene ether, the polyethylene glycol octylphenyl ether and the distilled water, so that the obtained human body simulated tissue fluid can meet the SAR test of a 5G high-frequency band. The components are simple, the raw materials are easy to obtain, and the cost is low, so that the components can be prepared in time when the SAR test is used, and meanwhile, the proportion of each component can be changed in time when the dielectric constant or the conductivity of the human body simulated tissue fluid is abnormal, so that the human body simulated tissue fluid is corrected. The problem of current human simulation tissue fluid with high costs and revise inconvenience is solved.

In this example, diethylene glycol monohexyl ether (C) was used₁₀H₂₂O₃) The CAS number of (1) is 112-59-4, and the liquid is transparent and has special flavor; polyethylene glycol octyl phenyl ether (C) used₁₈H₃₀O₃) The CAS number of is 9036-19-5, which is a transparent, light yellow liquid. The effects of the components in the SAR-based 5G high-frequency human body simulated tissue fluid provided by the embodiment are as follows: the diethylene glycol monohexyl ether is used for reducing the conductivity and increasing the dielectric constant; the polyethylene glycol octyl phenyl ether is used for increasing the conductivity and reducing the dielectric constant; the distilled water is used for reducing the conductivity and increasing the dielectric constant. Therefore, the dielectric constant and the conductivity of the human body simulated tissue fluid can be adjusted by changing the mass ratio of the three components, so that the correction of the human body simulated tissue fluid is simple and easy.

Specifically, this embodiment provides a 5G high-frequency body-simulating interstitial fluid, and the frequency band range of the 5G high-frequency and the dielectric constant and conductivity required by the corresponding body-simulating interstitial fluid are shown in table 2.

TABLE 2.5G dielectric constant and conductivity required for body-simulating interstitial fluid in the high-frequency range

In this embodiment, the 5G high-frequency body human body simulated tissue fluid comprises the following components by mass: the diethylene glycol monohexyl ether accounts for 10% +/-2%, and the polyethylene glycol octyl phenyl ether accounts for 12% +/-2%; the distilled water accounts for 78% +/-4%. Preferably, the diethylene glycol monohexyl ether accounts for 10% + -1%, and the polyethylene glycol octyl phenyl ether accounts for 12% + -1%; the distilled water accounts for 78% +/-2%.

The dielectric constant range of the 5G high-frequency human body simulated tissue fluid provided by the embodiment is 48.4-49.6F/m in a frequency band of 5.1 GHz-5.8 GHz, the conductivity range is 5.2-6.3S/m, and the dielectric constant and conductivity requirements of the 5G frequency human body simulated tissue fluid in the table 2 are met. Therefore, the 5G high-frequency body human body simulated tissue fluid provided by the embodiment can be used for carrying out a 5G high-frequency band body SAR test.

Meanwhile, the embodiment also provides a 5G high-frequency head human body simulated tissue fluid, and the frequency band range of the 5G high frequency and the dielectric constant and the conductivity required by the corresponding head human body simulated tissue fluid are shown in table 3.

TABLE 3.5G dielectric constant and conductivity required for head human body simulated tissue fluid corresponding to high-frequency range

In this embodiment, the mass ratio range of each component in the 5G high-frequency head human body simulated tissue fluid is as follows: the proportion of the diethylene glycol monohexyl ether is 12% +/-2%, and the proportion of the polyethylene glycol octyl phenyl ether is 20% +/-2%; the distilled water accounts for 68% +/-4%. Preferably, the diethylene glycol monohexyl ether accounts for 12% + -1%, and the polyethylene glycol octyl phenyl ether accounts for 20% + -1%; the distilled water accounts for 68% +/-2%.

The dielectric constant range of the 5G high-frequency head human body simulated tissue fluid provided by the embodiment is 35.4-36.1F/m in a frequency band of 5.1 GHz-5.8 GHz, the conductivity range is 4.0-5.5S/m, and the dielectric constant and conductivity requirements of the head human body simulated tissue fluid in the 5G frequency band in the table 3 are met. Therefore, the 5G high-frequency head human body simulated tissue fluid provided by the embodiment can be used for carrying out the head SAR test of the 5G high frequency band.

In the specific using process, the human body simulated tissue fluid is prepared according to the frequency band requirement of the SAR test and the tested items (head/body). For example, in the present embodiment, the SAR test of the head is performed for the 5G high frequency, and the 5G high frequency head human body tissue simulating fluid provided by the present embodiment needs to be prepared. Specifically, in this embodiment, the mass ratio of each component is: the diethylene glycol monohexyl ether accounts for 12 percent, and the polyethylene glycol octyl phenyl ether accounts for 20 percent; the distilled water accounts for 68 percent. After the preparation is finished, whether the dielectric constant and the conductivity of the simulated tissue fluid are in the range corresponding to the 5G high frequency can be confirmed by using an instrument, and if so, the simulated tissue fluid can be directly used for carrying out SAR test on the 5G high frequency head; if the dielectric constant is not in the range, for example, the dielectric constant is higher than the range corresponding to 5G high frequency, the polyethylene glycol octyl phenyl ether can be added to reduce the dielectric constant; also for example, if the conductivity is higher than the range corresponding to 5G high frequency, diethylene glycol monohexyl ether and/or distilled water may be added to lower the conductivity; until the dielectric constant and the conductivity of the simulated tissue fluid are both in the corresponding frequency band range.

When the dielectric constant or the conductivity is changed after multiple uses, the mass ratio of the corresponding components can be increased by the debugging method to recover the dielectric constant and the conductivity to be in the testing range. The human body simulated tissue fluid provided by the embodiment has simple components, can be prepared easily, and does not need to waste excessive manpower and energy.

In summary, the components of the SAR-based 5G high-frequency human body simulated tissue fluid provided by this embodiment include diethylene glycol monohexyl ether, polyethylene glycol octyl phenyl ether and distilled water, and the mass ratio range of each component in the 5G high-frequency human body simulated tissue fluid is as follows: the diethylene glycol monohexyl ether accounts for 8-14%, and the polyethylene glycol octyl phenyl ether accounts for 10-22%; the proportion of the distilled water is 64-82%. The obtained human body simulated tissue fluid can meet the SAR test of a 5G high-frequency band by matching the mass ratio of the diethylene glycol monohexyl ether, the polyethylene glycol octyl phenyl ether and the distilled water. The components are simple, the raw materials are easy to obtain, and the cost is low, so that the components can be prepared in time when the SAR test is used, and meanwhile, the proportion of each component can be changed in time when the dielectric constant or the conductivity of the human body simulated tissue fluid is abnormal, so that the human body simulated tissue fluid is corrected. The problem of current human simulation tissue fluid with high costs and revise inconvenience is solved.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.