Many types of coordination systems for multi-mode seekers and complex antenna system are discussed.

探讨了适宜于多模导引头的多种类型稳定位标器和复合天线系统方案；

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Contributing to their size are the installed microphone, speaker, and antenna. The devices also need a larger battery to power the complex functions of the phone.

内置话筒、扬声器、天线都使体积难以缩小，而这些新型装置也需要体积较大的电池来支持其复杂的功能。

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Smart antenna is a complex system including array antennas digital signal processing unit and adaptive arithmetic unit.

智能天线是个复杂的系统包括天线阵列，数字信号处理单元和自适应算法单元。

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On Tuesday, Cooper used his keynote address at the Embedded Systems Conference in Boston to run down a list of complaints against the wireless industry that ranged from closed carrier networks to inefficient cellular antenna systems to the design of smart phones like the iPhone, which he argues are overly complex.

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