Abstract
Dielectric lens antennas are extensively used in wideband millimeter wave applications in recent years, since they exhibit high gain and high radiation efficiency thanks to the dense dielectric materials in the lens core. The planar dielectric lens antennas have different phase center locations in E- and H-planes which is known as astigmatism problem. In this paper, an ultra-wideband planar dielectric lens antenna will be used as the feed of a reflector antenna and the influence of astigmatism effect on the radiation patterns of the reflector antenna will be deeply investigated.
Keywords
Optics
Reflector (photography)
Lens (geology)
Phase center
Wideband
Antenna (radio)
Dielectric
Planar
Astigmatism
Materials science
Radiation pattern
Extremely high frequency
Optoelectronics
Physics
Telecommunications
Computer science
Subject Areas
Microwave Engineering and Waveguides
·Electrical and Electronic Engineering ·Physical Sciences
Antenna Design and Optimization
·Aerospace Engineering ·Physical Sciences
Superconducting and THz Device Technology
·Astronomy and Astrophysics ·Physical Sciences
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