CAJ | 학술논문

径向缝隙天线是高增益、高效率的平面缝隙阵列天线。天线缝隙阵列按一定的规律排布在径向波导的上表面，径向波导内部填充由慢波材料来抑制天线的栅瓣，其中慢波材料的相对介电常数一般的选择范围是1.5~2.5。本文设计的径向缝隙天线中填充径向波导的慢波材料的相对介电常数为1.06。依据径向缝隙天线的设计原则，适当调整缝隙的排布，所设计天线并未出现栅瓣，并且有较好的方向性。天线的仿真结果与测量结果吻合的较好。
경향봉극천선시고증익、고효솔적평면봉극진렬천선。천선봉극진렬안일정적규률배포재경향파도적상표면，경향파도내부전충유만파재료래억제천선적책판，기중만파재료적상대개전상수일반적선택범위시1.5~2.5。본문설계적경향봉극천선중전충경향파도적만파재료적상대개전상수위1.06。의거경향봉극천선적설계원칙，괄당조정봉극적배포，소설계천선병미출현책판，병차유교호적방향성。천선적방진결과여측량결과문합적교호。
The Radial Line Slot Antenna (RLSA) is a planar slotted array antenna, which possesses high gain and high efficiency. The slot pairs are arranged on the top of the radial line waveguide, the waveguide filled with the slow wave material to suppress the grating lobes, generally, the relative dielectric constant is between 1.5 and 2.5. However, this paper presents an antenna that the relative dielectric constant is 1.06. Adjusting the length of the slots, the grating lobes are not appeared, and the direction is very well. And the simulation results are consistent well with the measurement results.