The antenna switch unit is selectively coupled to the first antenna or the second antenna.

天线切换单元选择性地耦接于第一天线或第二 天线。

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The testing head further comprises a second antenna for communicating with the first antenna;

测试头还包括一第二天线，用以与第一天线通信；

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The testing module further comprises a tester stock which is electrically connected with a second antenna.

测试模块还包括一测试机台电连接第二天线。

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Electrical engineers at Stanford built a cardiac device that uses a combination of inductive and radiative transmission of power, at about 1.7 billion cycles per second, to its coiled receiving antenna.

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The setup consisted of a radar emitter made out of one coffee can and a second can with a couple of LEDs attached to serve as a tethered receiver antenna.

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Second, the delivery method is outdated and the extra hardware, including a special antenna, and design requirements increase production costs for little return in value.

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