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Title: A new electronically steerable 1056 dipole array at 327 MHz for the Ooty radio telescope
Authors: Joshi, M. N
Swarup, G
Bagri, D. S
Kher, R. K
Keywords: Radio telescope;Phased array
Issue Date: 1988
Publisher: Astronomical Society of Indian
Citation: BASI, Vol. 16, No. 2 & 3, pp. 111-121
Abstract: The electronically steerable 1056-element linear dipole array installed on the Ooty radio telescope in 1982 is described. The colinear dipole array consists of 22 subarrays of 48 dipole each and employs a low loss (about 0.6 dB) 4-bit PIN diode phase-shifter, after each dipole, for steering the telescope beam in declination. The phase-shifters are controlled by a computer and transistor drivers. The maximum VSWR at the input of any dipole is not above 2 over a scan range of + or - 40 deg, and the frequency range of + or - 6 MHz.
Appears in Collections:BASI Publications

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