DC2: Lens-like wideband wide-angle glide-symmetric impedance matching
The Task 1.2 of the WP1 will be conducted with the doctoral project of the Doctoral Candidate 2, Mr. Moises NUNEZ TERCERO.
The project will be supervised by KTH (Oscar QUEVEDO-TERUEL) and THALES (Thi-Quynh-Van HOANG and Matthieu BERTRAND).
Objectives
- Quantification of the refractive indexes required by the design aims given by THALES and proposal of different lens profiles to obtain an improved matching. Anisotropic materials will be explored, since they can be easily synthetized with GS configurations over an ultra large band at Ka frequencies (at KTH).
- Study of refractive indexes achievable by means of GS metalenses and of their stability under various illumination conditions: frequency, angle of incidence, wave-front shape. Main requirements will be on insertion losses (below 0.5 dB), fractional bandwidth (larger than 1), steering angle (beyond 60°). Models developed in the Task 1.1 will be employed for the study (at KTH).
- Design of metalenses composed by GS layers. The researcher will work on several designs in order to address different types of fabrication technology: PCB, all-metal lenses, 3-D printed lenses (at THALES).
- Prototype and measurement of the designed lenses (at THALES).
Expected Results
- Design rules of lenses tailored on panels of use in aircraft industry to improve their radiation performance.
- Data of the relevant performance of different GS metasurfaces (differing for their geometric parameters, shapes, materials, fabrication technology).
- Design rules for wideband wide-angle impedance matching (WAIM) according to the fabrication technology.
- Designed prototypes of GS lenses meeting market requirements.