학술논문

Radiation Pattern Shaping Using Generalized Luneburg Lenses for Automotive RADAR Antennas
Document Type
Conference
Source
2024 18th European Conference on Antennas and Propagation (EuCAP) Antennas and Propagation (EuCAP), 2024 18th European Conference on. :1-5 Mar, 2024
Subject
Fields, Waves and Electromagnetics
Shape
Radar
Radar antennas
Reflector antennas
Reflection coefficient
Millimeter wave communication
Optimization
Antennas
mmWave
Lenses
Automotive RADAR
Language
Abstract
This paper introduces an approach using the Generalized Luneburg Lens as a modular design element to shape automotive RADAR antennas at mmWave frequencies. An optimization routine that includes unwanted effects associated with manufacturing constraints is presented by adding mechanical constraints in the lens design and using a full-wave solver with the feeding antenna. Two lenses are designed; the first increases the directivity from 14.1 to 15.7 dBi, while the second increases the HPBW of the antenna from 57.6 to 129.6 degrees, demonstrating the flexibility of the presented approach.