[B-1B] Antennas and Propagation B (Antennas general)

11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)Candidate for Academic Incentive Award

[B-1B-53] Design of True-Time-Delay MSL Coupled Curl Reflection Elements for D-Band Reflectarrays

◎Yuki Takeda¹, Gen Nakayama¹, Takashi Tomura¹ (1. Institute of Science Tokyo)

Keywords:

sub-THz,Reflectarray Antenna,Curl Antenna

The use of the sub-terahertz band has attracted significant attention for realizing high-speed, high-capacity wireless communications. Reflectarray antennas can be fabricated using printed circuit board (PCB) technology and are expected to achieve high gain proportional to their aperture size through space-fed operation. However, broadband operation remains challenging due to the limited bandwidth of the reflecting elements. In this presentation, we propose a True-Time-Delay D-band reflectarray element employing a curl element that achieves both broadband performance and excellent circular polarization characteristics.