An active antenna consisting of electrically small antennas 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。
This is a general design method for optimizing an electrically small antenna because it does not deal with concrete configuration of antennas.
整个分析过程不涉及具体天线的结构，因而是研究电小天线补偿电路的一般方法。
A novel compensation circuit of electrically small antennas is presented, in which a short-circuited transmission line shunted with the antenna is used to realize the broadband matching.
本文研究一种电小天线的新型补偿电路，即用短路传输线与天线相并联的方式实现对电小天线的宽带匹配。
The antenna is electrically small, has wide bandwidth and good gain characteristics, is efficient and not easily detuned.
该天线为小型电结构，其具有宽的带宽和好的增益特性，具有高效率且不易于失调。
The fractal antenna based on space self-filling ability and self-similarity ability, presents some characteristic such as electrically small size, wideband and multi-frequency.
基于分形的自相似性和空间填充特性设计的分形天线，具有电小尺寸、宽频和多频等特性。
In this paper, a simple and practical electrically small planar unipole antenna is presented, and the dependences of input impedance on dimension of the antenna and frequency are investigated.
本文提出一种简单而实用的平面结构的单极子电小天线，研究输入阻抗随天线外形尺寸和频率的变化规律。
In this paper, a simple and practical electrically small planar unipole antenna is presented, and the dependences of input impedance on dimension of the antenna and frequency are investigated.
本文提出一种简单而实用的平面结构的单极子电小天线，研究输入阻抗随天线外形尺寸和频率的变化规律。
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