This letter proposes collimator designs composed of dual dielectric materials for microwave beam splitting and focusing using the phase-field design method. Polypropylene (PP) and paraffin were selected as dielectric materials considering the mechanical durability and manufacturing feasibility for an experimental verification. We fabricated designed collimators using a three-dimensional printing device and performed experimental verifications using a two-dimensional electric field scanner. It is confirmed that measurement results fairly agree with simulation results. Improvement of mechanical durability obtained from dual dielectric structures is also verified through numerical analysis.
|Number of pages||4|
|Journal||IEEE Antennas and Wireless Propagation Letters|
|Publication status||Published - 2018 Sept|
Bibliographical noteFunding Information:
Manuscript received July 2, 2018; accepted July 30, 2018. Date of publication August 3, 2018; date of current version August 31, 2018. This work was supported in part by the National Research Foundation of Korea funded by the Korea Government under Grant NRF-2016R1A2B4008501 and in part by the Agency for Defense Development of Korea under Grant UD160026GD. (Corresponding author: Jeonghoon Yoo.) J. Go was with the School of Mechanical Engineering, Yonsei University, Seoul 03722, South Korea. He is now with the Hyundai Motors Namyang Institute, Gyeonggi-do 445-706, South Korea (e-mail:,zzzgo@ naver.com).
© 2002-2011 IEEE.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering