Preliminary Characterization of the Digitally Formed Beams of PHAROS2 Phased Array Feed
Date Issued
2021
Abstract
We describe the beamforming strategy and the preliminary laboratory characterization results of the beam pattern synthesized by the PHAROS2 Phased Array Feed (PAF), a 4-8 GHz PAF with digital beamformer for radio astronomy application. The PAF is based on an array of 10×11 dual-polarization Vivaldi antennas cryogenically cooled at 20 K along with low noise amplification modules (LNAs) cascaded with a multi-channel Warm Section (WS) receiver. We present the beamforming and test procedures used to, respectively digitally synthesize and characterize the PHAROS2 antenna array beam pattern at 6 GHz. The tests of the array were carried out at room temperature by directly connecting 24 antenna elements to the WS and iTPM digital beamformer in a laboratory measurement setup.
Coverage
2020 50th European Microwave Conference (EuMC)
Start page
1035-1038
Conferenece
50th European Microwave Conference (EuMC)
Conferenece place
Utrecht, Netherlands
Conferenece date
12-14 January 2021
Rights
open.access
File(s)![Thumbnail Image]()
Loading...
Name
Preliminary_Characterization_of_the_Digitally_Formed_Beams_of_PHAROS2_Phased_Array_Feed.pdf
Size
450.83 KB
Format
Adobe PDF
Checksum (MD5)
0c67a77e24d2462465cae84995809d89