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A Control Device of S/X-bands Radio Astronomy Receivers Parameters

Yu. V. Vekshin, M. B. Zotov, A. S. Lavrov

Transactions of IAA RAS, issue 51, 32–41 (2019)

Keywords: radio astronomy receiver, Allan variance, gain stability, noise temperature, fluctuation

Abstract

A compact control device to measure radio astronomy receiver parameters has been developed in IAA RAS observatories. The device is designed to control output power, gain, noise temperature and stability of these parameters of a radio astromomy receiver and its separate units (cryogenic receiver unit, frequency conversion unit). The structure and operating principle of the device are described. The device generates a reference noise signal, amplifies, filters, detects and digitizes a receiver unit output signal. The device allows to control microwave signal power of eight receiver channels, as well as their supply voltage. The main parameters of the device developed are presented. Measurement techniques and determination of S/X receivers stability, as obtained by Allan variance, are given. Gain and noise temperature stability results, measured with the device, are compared to those measured with power meter, vector network analyzer and noise figure analyzer. The comparison of receiver stability in total power mode and Dicke radiometer mode is also given.

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Yu. V. Vekshin, M. B. Zotov, A. S. Lavrov. A Control Device of S/X-bands Radio Astronomy Receivers Parameters // Transactions of IAA RAS. — 2019. — Issue 51. — P. 32–41.

@article{vekshin2019,
  abstract = {A compact control device to measure radio astronomy receiver parameters has been developed in IAA RAS observatories. The device is designed to control output power, gain, noise temperature and stability of these parameters of a radio astromomy receiver and its separate units (cryogenic receiver unit, frequency conversion unit). The structure and operating principle of the device are described. The device generates a reference noise signal, amplifies, filters, detects and digitizes a receiver unit output signal. The device allows to control microwave signal power of eight receiver channels, as well as their supply voltage. The main parameters of the device developed are presented.
Measurement techniques and determination of S/X receivers stability, as obtained by Allan variance, are given. Gain and noise temperature stability results, measured with the device, are compared to those measured with power meter, vector network analyzer and noise figure analyzer. The comparison of receiver stability in total power mode and Dicke radiometer mode is also given.},
  author = {Yu.~V. Vekshin and M.~B. Zotov and A.~S. Lavrov},
  doi = {10.32876/ApplAstron.51.32-41},
  issue = {51},
  journal = {Transactions of IAA RAS},
  keyword = {radio astronomy receiver, Allan variance, gain stability, noise temperature, fluctuation},
  pages = {32--41},
  title = {A Control Device of S/X-bands Radio Astronomy Receivers Parameters},
  url = {http://iaaras.ru/en/library/paper/2008/},
  year = {2019}
}

TY  - JOUR
TI  - A Control Device of S/X-bands Radio Astronomy Receivers Parameters
AU  - Vekshin, Yu. V.
AU  - Zotov, M. B.
AU  - Lavrov, A. S.
PY  - 2019
T2  - Transactions of IAA RAS
IS  - 51
SP  - 32
AB  - A compact control device to measure radio astronomy receiver
parameters has been developed in IAA RAS observatories. The device is
designed to control output power, gain, noise temperature and
stability of these parameters of a radio astromomy receiver and its
separate units (cryogenic receiver unit, frequency conversion unit).
The structure and operating principle of the device are described.
The device generates a reference noise signal, amplifies, filters,
detects and digitizes a receiver unit output signal. The device
allows to control microwave signal power of eight receiver channels,
as well as their supply voltage. The main parameters of the device
developed are presented.  Measurement techniques and determination of
S/X receivers stability, as obtained by Allan variance, are given.
Gain and noise temperature stability results, measured with the
device, are compared to those measured with power meter, vector
network analyzer and noise figure analyzer. The comparison of
receiver stability in total power mode and Dicke radiometer mode is
also given.
DO  - 10.32876/ApplAstron.51.32-41
UR  - http://iaaras.ru/en/library/paper/2008/
ER  -