Polarization-controllable zeroth-order-resonator antennas with reactance loads at both ends
Polarization-controllable zeroth-order-resonator antennas with reactance loads at both ends
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两端电抗负载的极化可控零阶谐振天线
DOI：
10.1109/mwsym.2011.5972663
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
T. Itoh
中科院分区：
文献类型：
--
作者：
T. Ueda;G. Haida;Y. Kado;T. Itoh
提出并论证了两端有电抗负载的极化可控零阶谐振器天线。零阶谐振腔天线由一条基于微带线的带无功负载的复合左右手传输线组成。一个负载的阻抗是另一个负载的复共轭。通过改变谐振状态下的终止条件，可以同时任意控制单元串联和并联支路的双谐振能量叠加。当中心微带线垂直于短截线时，来自中心微带线的辐射场的偏振方向与来自短截线的辐射场偏振方向垂直。通过改变终止条件，我们可以连续旋转线偏振辐射的共极化方向。数值计算和实验结果验证了这一基本概念。
Polarization-controllable zeroth-order-resonator antenna with reactance loads at both ends is proposed and demonstrated. The zeroth-order resonator antenna is composed of a microstrip-line-based composite right/left handed transmission line with reactive loads. The impedance of one load is the complex conjugate of another. By changing the end condition under the resonance, superposition of energies of dual resonances in series and shunt branches of the unit cell can be simultaneously and arbitrarily controlled. When the center microstrip line is perpendicular to the stubs, the polarization of radiation fields from the center microstrip line is orthogonal to that from stubs. By changing the terminating condition, we can continuously rotate the co-polarization direction of the linearly-polarized radiation. The numerical and experimental results verified the basic concept.