★ SAR test introduction

The English full name of SAR is specific absorption rate, while the Chinese general name is electromagnetic wave absorption ratio or specific absorption rate. It is the ratio of electromagnetic wave energy absorption of mobile phones or wireless products, which is defined as: under the action of external electromagnetic field, the human body will generate induced electromagnetic field. Because all organs of human body are lossy media, electromagnetic field in human body will produce current, which will absorb and dissipate electromagnetic energy. SAR is often used to characterize this physical process in biodosimetry. The meaning of SAR is the electromagnetic power absorbed or consumed by human tissues of unit mass, unit: w / kg.

★ introduction to the capabilities of yuhantong SAR Laboratory

UHT SAR laboratory supports SAR testing of mobile devices such as mobile phones, data cards, tablets, walkie talkies, etc. The test frequency range is 300mhz-6ghz, including 2G, 3G, 4G, WiFi and other communication systems

★ introduction of SAR laboratory equipment

The latest introduction of the French Satimo SAR test system, this test system meets the YD / T 1644, en 62209-1, FCC OET bulletin 65 and other domestic and foreign standards. The SAR test system supports the option of double head table, which has the characteristics of fast test speed and high equipment stability

★ SAR test classification

By product type:

2G mobile phone, 3G mobile phone, 4G mobile phone, walkie talkie, tablet computer, notebook computer, USB WiFi, high-power Bluetooth headset, etc

Classification by frequency distribution:

GSM 450、GSM 850、GSM 900、GSM 1800、GSM 1900；

UMTS Band I、II、III、IV、V、VIII；

CDMA、EVDO800、850、1700、1900；

PPT Device(136MHz to 174MHz)、(400MHz to 520MHz)、Walkie Talkie；

Bluetooth(V2.1+EDR、V3.0、V3.0+HS、V4.0)；

WiFi(IEEE 802.11 a/b/g/n)。

Classification by type of certification:

Ce-red, FCC ID, IC, Thailand, India, KC, NCC, MIC, etc.

Conclusion:

SAR test is mainly aimed at products with wireless transmission within 20cm of the antenna near the human body, and the power of the products exceeds the power value exempted by various countries

★ national SAR test standards

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★ advantages of depua SAR test

Due to the wide spread of radio equipment (such as mobile phones) in the world, more and more government departments, telecommunications regulatory agencies and other requirements to reduce electromagnetic radiation to a suitable level

In order to meet the urgent needs of mobile phone manufacturers, depua has introduced advanced mobile phone electromagnetic wave energy absorption ratio (SAR) test system. This test system, fully in line with the requirements of IEEE / IEC / en and American ANSI SAR standards, has the characteristics of fast, accurate, safe and efficient. It is also the most widely accepted SAR test system in the laboratory. The test frequency range of the system is 6GHz, which can be used for certification test of GSM, CDMA, WLAN and other multi-type products (not limited to mobile phones)

If you have SAR testing related needs, please call us for consultation, and we will provide you with the best quality testing and certification consulting services.