K. Murakawa et al., TECHNIQUES OF ESTIMATING RADIATED INTERFERENCE FIELD IN ACTUAL CONFIGURATIONS, Electronics & communications in Japan. Part 1, Communications, 77(12), 1994, pp. 101-112
To resolve the problem of electromagnetic interference generated at th
e actual configuration of electronic equipment by a radiated interfere
nce wave, it is desirable to establish a technique to estimate the rad
iated interference of electronic equipment. This paper discusses a met
hod for estimating the radiated interference in actual configuration f
rom the measured radiated interference at the test site of the electro
nic equipment. In the proposed estimation method, a simulated source o
f the electronic equipment is used for deriving the deviation (convers
ion coefficient) of the wave propagation characteristics of the test s
ite and the actual configuration. By means of this conversion coeffici
ent, the radiated interference in actual configuration is estimated fr
om the radiated interference at the test site, An estimation method is
shown in the case where a spherical dipole antenna is used as a simul
ation source of the electronic equipment. When the effectiveness of th
e estimation method was verified experimentally with actual electronic
equipment, it was found that the radiated interference in the actual
configuration can be estimated with accuracy of 4 to 5 dB at the frequ
encies of 30 to 300 MHz.