## Computation of the polarization properties of RATAN-600 with taking into account diffraction effects

Transactions of IAA RAS, issue 24, 156–160 (2012)

**Keywords**:
radio telescope, the Muller matrix, diffraction effects, reflector

### Abstract

The paper describes the Muller matrix elements for RATAN-600 computed with the allowance for the diffraction effects in the space between the primary and flat mirrors in the Souther sector with a flat reflector ("South+flat") observing mode and in the mode of single-sector observations at the horizon throughout the entire operating wavelength range. We show that the vertical size of the elements decreases, the elements shift relative to the central horizontal section, and the lobe structure of the elements changes with increasing wavelength. The Muller matrix elements were computed both for the case of a focused antenna and for the case of off-focus primary emitter. The power beam pattern RATAN-600 (the matrix elements M) computed using this technique agrees well with the measured diagrams.

### Citation

`E. K. Majorova, L. V. Opeikina . Computation of the polarization properties of RATAN-600 with taking into account diffraction effects // Transactions of IAA RAS. — 2012. — Issue 24. — P. 156–160.`

```
@article{majorova2012,
abstract = {The paper describes the Muller matrix elements for RATAN-600 computed with the allowance for the diffraction effects in the space between the primary and flat mirrors in the Souther sector with a flat reflector ("South+flat") observing mode and in the mode of single-sector observations at the horizon throughout the entire operating wavelength range. We show that the vertical size of the elements decreases, the elements shift relative to the central horizontal section, and the lobe structure of the elements changes with increasing wavelength. The Muller matrix elements were computed both for the case of a focused antenna and for the case of off-focus primary emitter. The power beam pattern RATAN-600 (the matrix elements M) computed using this technique agrees well with the measured diagrams.},
author = {E.~K. Majorova and L.~V. Opeikina},
issue = {24},
journal = {Transactions of IAA RAS},
keyword = {radio telescope, the Muller matrix, diffraction effects, reflector},
pages = {156--160},
title = {Computation of the polarization properties of RATAN-600 with taking into account diffraction effects},
url = {http://iaaras.ru/en/library/paper/842/},
year = {2012}
}
```

```
TY - JOUR
TI - Computation of the polarization properties of RATAN-600 with taking into account diffraction effects
AU - Majorova, E. K.
AU - Opeikina, L. V.
PY - 2012
T2 - Transactions of IAA RAS
IS - 24
SP - 156
AB - The paper describes the Muller matrix elements for RATAN-600 computed
with the allowance for the diffraction effects in the space between
the primary and flat mirrors in the Souther sector with a flat
reflector ("South+flat") observing mode and in the mode of single-
sector observations at the horizon throughout the entire operating
wavelength range. We show that the vertical size of the elements
decreases, the elements shift relative to the central horizontal
section, and the lobe structure of the elements changes with
increasing wavelength. The Muller matrix elements were computed both
for the case of a focused antenna and for the case of off-focus
primary emitter. The power beam pattern RATAN-600 (the matrix
elements M) computed using this technique agrees well with the
measured diagrams.
UR - http://iaaras.ru/en/library/paper/842/
ER -
```