The recent introduction of portable satellite telephones brought global communications standards to consumers, demonstrating the way mobile communications markets are expanding beyond the capacity of individual nations to regulate them. In theautomobile industry, manufacturers are researching and developing traffic information systems based on the mobile communications technology. Thus, auto makers are also working towards establishing international standards.One of the essential components of mobile communications equipment is the antenna. Fujitsu Ten is developing next-generation car antennas by maximizing technological expertise accumulated over many years. These advanced R&D activities, in turn, havecreated a need for a new antenna evaluation technology—and a cutting-edge facility in which to apply it.To further our antenna R&D activities, we have constructed an anechoic chamber (six-sided dead room) in the Nakatsugawa Techno Center. This facility is among the largest anechoic chambers of its kind in Japan. It enables the assessment of antennaperformance using a broad frequency spectrum, ranging from FM broadcasting frequencies to millimeter waves.Issues Fujitsu, Ten has encountered in the anechoic chamber construction project and the technologies used to deal with them are described in the following synopsis, which also introduces examples of our product evaluations.
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