信号通道由衰减电路、阻抗变换电路、放大电路等电路组成。
Signal channel consists of attenuating circuit, impedance transformation circuit and amplification circuit.
对用负阻抗变换电路同圆锥螺旋天线相结合，构成的有源接收天线进行了理论分析。
An active receiving antenna consisting of conical helix antenna and a negative impedance changing circuit is analyzed in this paper.
本文对用一种负阻抗变换电路同电小天线导线相结合构成的有源天线进行了理论分析。
An active antenna consisting of electrically small antennas and a negative impedance changing circuit is analyzed in this paper.
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