Millimeter wave radio
astronomy receivers with spectral separation of channels on the radio
frequency
V. B.
Khaikin 1,
V. N. Radzikhovskii 2,
S. E. Kuzmin 2, S.
V. Shlenzin 2
1 RAS
Special astrophysical observatory, St. Petersburg branch
2 RPC
“Iceberg-NT”
The paper is
received on November 22, 2015
Abstract.
The paper describes methods of constructing a multi-channel
millimeter wave radio astronomy receiver with spectral separation of channels
on the radio frequency. The results of the development of an 8-channel receiver
at 30-40 GHz with a channel bandwidth of 900 MHz in microstrip performance and
at 38-46 GHz with a channel bandwidth of 250 MHz in the waveguide performance
are presented. The characteristics and results of the developed schemes and
units of multi-channel receiver are given.
Key words:
radio astronomy,
radio telescope, multichannel receiver,
spectral
separation of channels, microstrip and waveguide performance, power dividers, pass
band filters.