A handset terminal evaluation system by field simulator

Because of severe fading caused by the movement of the portable terminal, it is insufficient to only test a handset under an environment of multiple waves, as in mobile communication, especially in a city or to only evaluate the static characteristics in an anechoic chamber. The random field method which actually measures the handsets in the open site is time consuming, has a poor measurement repeatability, and also the problem of obtaining a radio license. The field simulator, i.e. a portable handset evaluation system reproducing the artificial fading environment inside the building solves these problems. This paper presents a prototype field simulator applied to the connection rate test in a weak electric field environment, and to diversity characteristic evaluation in development of an antenna.