Measurement of Far Field Radiation Pattern of 300GHz-band Cassegrain Antenna

We measured far field pattern of a 300-GHz Cassegrain antenna. The far-field measurement of the high-gain antenna requires a transmission distance of several tens of meters or more, and the receiver system requires a dynamic range of more than 70 dB and high sensitivity. In this paper, we obtained a...

Full description

Saved in:
Bibliographic Details
Published in2021 International Symposium on Antennas and Propagation (ISAP) pp. 1 - 2
Main Authors Watanabe, Ken, Hirata, Akihiko, Watanabe, Issei, Sekine, Norihiko, Kasamatsu, Akifumi
Format Conference Proceeding
LanguageEnglish
Published Taiwan Microwave Association 19.10.2021
Subjects
Antenna measurements
Far field measurement
Gain measurement
Near-field to Far-field Conversion
Receiving antennas
Sensitivity
Terahertz wireless system
Transmitting antennas
Wireless communication
Wireless sensor networks
Online AccessGet full text

Cover

More Information
Summary:We measured far field pattern of a 300-GHz Cassegrain antenna. The far-field measurement of the high-gain antenna requires a transmission distance of several tens of meters or more, and the receiver system requires a dynamic range of more than 70 dB and high sensitivity. In this paper, we obtained a 300-GHz-band experimental radio station license in Japan and measured the far field pattern of a Cassegrain antenna with a gain of 45 dBi. We also measured the near field pattern of the antenna, and calculated the far field pattern from the near field pattern. The measured far field pattern and the calculated far field pattern from the near field pattern are in good agreement. The far field pattern agrees with the antenna pattern models described in Recommendation ITU-R that covers below 86 GHz.
DOI:10.23919/ISAP47258.2021.9614528