【作者】 陈可； 张云华； 何思远； 朱国强；

【Author】 K.Chen ;Y.H.Zhang ;S.Y.He ;G.Q.Zhu;

【机构】 武汉大学；

【摘要】 本文利用高阻抗表面的阻抗特性和反射相位特性,将高阻抗表面加载到矩形波导内壁上,设计了相位常数可调谐的高阻抗波导。首先分析高阻抗波导的传播特性并给出准确的表达式,根据表达式,传播常数随着阻抗的增大而增大。由这一特性,先在高阻抗表面上加载集总元件,使其阻抗变化范围可控。再将高阻抗表面放置波导内壁上,通过调节电容值,实现了高阻抗波导相位常数和波束方向的调谐。更多还原

【Abstract】 This paper is designed a propagation constant tunable high impedance waveguide(HIW) by a rectangular waveguide loaded with high impedance surface(HIS), base on the impedance and reflection phase properties of high impedance surface(HIS). Analysis the propagation feature of high impedance waveguide and obtain an accurate equation of propagation constant. From this equation, propagation constant change with impedance of HIS. The tunable HIS based on HIS loaded with capacitance, then the impedance of HIS is controlled by variation of the capacitance. Then the propagation constant and beam angle of tunable HIW changes according when the capacitance changes.更多还原