CAJ | 학술논문

提出一种用陶瓷介质谐振器实现圆极化工作的方法,并进行分析和讨论.利用缺口圆环口径耦合引入的微扰来实现圆极化,有效地克服了普通圆极化设计的馈电网络复杂等缺点.通过缺口大小的改变,得出了反射损耗和轴比的变化规律,并通过在谐振器上加2个对称的小贴片来改进天线的性能.此天线工作在5.20 GHz,可应用于通信公共频段,并且采用了高介电常数的介质谐振器,使天线达到小型化.
제출일충용도자개질해진기실현원겁화공작적방법,병진행분석화토론.이용결구원배구경우합인입적미우래실현원겁화,유효지극복료보통원겁화설계적궤전망락복잡등결점.통과결구대소적개변,득출료반사손모화축비적변화규률,병통과재해진기상가2개대칭적소첩편래개진천선적성능.차천선공작재5.20 GHz,가응용우통신공공빈단,병차채용료고개전상수적개질해진기,사천선체도소형화.
An approach for circular polarization (CP) operation of ceramics dielectric resonator antenna is proposed with analysis and discussion. The antenna uses a gapped annular slot to realize CP radiation, which reduces complexity of feed network in ordinary CP designs. By changing the gap size, a variation of S11 and the axial ratio are studied. Moreover, by adding two small symmetric patches to the resonator, performance of the antenna is further improved. This antenna operates at 5.20 GHz in the public communication band. High dielectric resonator (DR) is used to make the antenna small.