Apparatus for and method of measuring local specific absorption range SAR

摘要

A local SAR measurement device capable of estimating a small-size radio device local SAR on a production line with a high accuracy within a short time. The local SAR measurement device includes a plurality of electromagnetic probes (1) for receiving transmission power from a mobile telephone antenna (12) extending from a mobile telephone main body (11) in Fresnels zone, a combining device for combining the reception powers (2), and a signal processor (3) for estimating a local SAR from the combined reception power. A plurality of electromagnetic probes (1) are used to measure the reception powers of a reference mobile telephone whose local SAR value is known by a precision measurement and a mobile telephone to be measured, so as to estimate the SAR value of the mobile telephone to be measured by utilizing that the SAR value is in proportional relationship with the reception power. Thus, it is possible to measure and evaluate SAR values of a plenty of mobile telephones with a high accuracy in a short time.