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据报道,达方电子在既有高频通信组件的基础下,用两年时间自行开发完成了GSM/DCS双频及GSM/DCS/PCS三频天线T/R开关模块。该模块尺寸为5.4 mm×4.0 mm,为目前世界中最小尺寸。双频T/R模块已通过中国手机大厂认证,并小量交货,2003年底出货100万枚。三频T/R模块目前正在与国内
According to reports, Delta Electronics developed GSM / DCS dual-band and GSM / DCS / PCS tri-band antenna T / R switch modules by itself in two years under the existing high-frequency communication components. The module size is 5.4 mm × 4.0 mm, the smallest size in the world. Dual-band T / R module has passed China’s mobile phone manufacturers certification, and a small amount of delivery, the end of 2003 shipped 1 million. Tri-band T / R module is currently with domestic