Alumide as a Nonmagnetic Fresnel Zone Lens at 30 GHz
- Resource Type
- Conference
- Authors
- Pourahmadazar, J.; Karimian, R.; Ardakani, M. Dashti; Ahmadi, Sh.; Zaghloul, M.
- Source
- 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS) International Union of Radio Science (URSI GASS), 2021 XXXIVth General Assembly and Scientific Symposium of the. :1-3 Aug, 2021
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Permittivity measurement
Transmitting antennas
Estimation
Refractive index
Loss measurement
Scattering parameters
Plastics
- Language
- ISSN
- 2642-4339
A nonmagnetic Fresnel Zone Plate Lens (FZPL) antenna with high dielectric plastic porosity controlling is proposed in this paper. Compared to conventional Fresnel plates, the proposed structure has a single homogeneous platform for transmitting mode role, making the gradient refractive index lens antenna a perfect candidate for high gain applications. A non-magnetic plastic has achieved the intended GRIN subzones homogeneously. Each desired permittivity for half-wave plate subzones is estimated with a capacitive estimation on Brakora analysis. Half-wave zone type of FZP is selected to utilize based on optic rules to realize this estimation. A Cos 41 -like conical horn is used as a central beam-launcher to excite the lens diaphragms and was implemented and measured at 30 GHz. The measured scattering parameters for ZP shows a better than −15 dB return loss and validate our modeling with 5 mm thickness and $3\lambda_{0}$ lateral dimension.