A broadband and dual-polarization single-layer dichroic filter for applications in Sub-THz range
Paper in proceeding, 2022
In this work we report the design of a single-layer
all-metall dichroic filter with an improved spectral response at
non-normal beam incidence and nearly equal performance for
both polarizations. The dichroic is intended to be employed for
dual-frequency receivers. Since the dichroic is produced purely
from metal it facilitates its use at cryogenic temperatures.
Therefore, the contribution to the system noise is minimized.
The dichroic design concept demonstrated a measured
transmission of electromagnetic radiation of 85-90% for both
polarizations in the range of 35-50 GHz (37% fractional
bandwidth). The measurements were performed at room
temperature. The spectral properties of the dichroic have been
optimized by modeling in 3D FEM simulation software.
all-metall dichroic filter with an improved spectral response at
non-normal beam incidence and nearly equal performance for
both polarizations. The dichroic is intended to be employed for
dual-frequency receivers. Since the dichroic is produced purely
from metal it facilitates its use at cryogenic temperatures.
Therefore, the contribution to the system noise is minimized.
The dichroic design concept demonstrated a measured
transmission of electromagnetic radiation of 85-90% for both
polarizations in the range of 35-50 GHz (37% fractional
bandwidth). The measurements were performed at room
temperature. The spectral properties of the dichroic have been
optimized by modeling in 3D FEM simulation software.
dichroic
filters
mm-wave
Author
Daniel Montofre
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Igor Lapkin
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Denis Meledin
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Vincent Desmaris
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Leif Helldner
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Mathias Fredrixon
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Cristian Daniel López
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Victor Belitsky
Chalmers, Space, Earth and Environment, Onsala Space Observatory
32nd International Symposium of Space Terahertz Technology, ISSTT 2022
32nd IEEE International Symposium on Space THz Technology (ISSTT 2022)
Baeza, Spain,
Baeza, Spain,
Subject Categories
Telecommunications
Signal Processing
Other Electrical Engineering, Electronic Engineering, Information Engineering
Infrastructure
Onsala Space Observatory