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日本 NEC公司制成了 PDC制式 1.5 GHz便携电话的天线双工器用 SAW滤波器 ,并达到了实用化。该产品 2 0 0 2年 1月开始批量生产 ,3月份达到月产 10 0万个。明年包括本品在内 ,模块式封装的 SAW滤波器的生产能力将达到 10 0 0万个。NEC公司利用自己独特的设计技术、材料技术和电
Japan’s NEC has made SAW filters for antenna duplexers for PDC-based 1.5 GHz handsets and reached practical levels. The product began volume production in January 2002 and reached 10 million in March. Next year, including this product, the module package SAW filter production capacity will reach 10 million. NEC companies use their own unique design technology, materials technology and electricity