8-mm range matrix receiving system for passive radio imaging
Khaikin 1, A. A. Storozhenko1 , M. K. Lebedev
1, V. N. Radzikhovskii
S. E. Kuzmin
S. V. Shlenzin
RAS Special astrophysical observatory, St. Petersburg branch
The paper is received
on February 7, 2014
Abstract. The completion of the development of the 24-element 8-mm range
matrix receiving system for passive radio imaging applications is reported. The
receiving matrix system features high fluctuation sensitivity of the
radiometric modules (not worse than 10 mK/Hz1/2), dense packing of
the system’s elements and their high temperature stability, which allows the
operation in modulation and compensation modes without external calibration.
Using the transmitters with dielectric rods as the matrix feeds and the compact
design of the receiving modules made possible to realize the array spacing as
small as 14 mm. The peculiarities of dense packed receiver matrix design, the
results of multibeam antenna pattern of the passive radio imaging system with a
24-element receiving array simulation and a test radio image are presented.
radiometric modules, multibeam radiation pattern, receiving matrix, passive
radio imaging, radio image.