... negative grid super high frequency tube 负栅超高频管 super gain antenna 超增益天线 super audible frequency 超声频率 ...
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Helical antenna has not only almost identical to the resistive input impedance in broad bandwidth, but also works by the end of super-gain front lobed map in the same frequency band.
螺旋天线不仅在宽频带上具有近乎一致的电阻性输入阻抗，而且在同样的频带上按超增益端射阵的波瓣图工作。
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