| 摘要 |
PURPOSE: To reduce an electric field strength measuring device in size even when the device has a plurality of antennas whereby receiving electric field strength values of the plurality of antennas are measured at the same time. CONSTITUTION: This device comprises an electric field strength measuring section 2 that measures an electric field strength of a wave having a designated frequency and an RF switch 1 that selects an input port from a plurality of input ports P1 -Pm respectively connected to antennas and connects it to the electric field strength measuring section 2. The input port selected by the RF switch 1 is periodically switched and the measured result of the electric field strength obtained by the electric field strength measuring section 2 is fetched in synchronism with the cycle of the switching to be accumulated by each input port. This device comprises a control section C1 that executes a statistical operation of the measured results accumulated by each input port and calculates the electric field strength of each input port. |
