PIER
 
Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 65 > pp. 81-91

A NOVEL SCHEMATIC FOR CALIBRATION OF LARGE PHASED ARRAY ANTENNA USING PROGRAMMABLE TIME-DELAY UNITS

By Q. M. Alfred, T. Chakravarty, and S. K. Sanyal

Full Article PDF (135 KB)

Abstract:
In this paper, a conceptual schematic for calibration of large phased array antenna is presented. Derived from an earlier work by the authors, the presentation demonstrates a simple yet innovative schematic of inserting time delay units with each element in the array which can be used to generate both SUM and DIFFERENCE pattern. Both these patterns are electronically steerable. The calibration is done using SUM-DIFFERENCE pattern. PIN switches are used to insert proper time delay units. Thus the schematic is completely programmable using a microcontroller to control the insertion of time delay. The details of the schematic is presented along with the generated antenna patterns.

Citation: (See works that cites this article)
Q. M. Alfred, T. Chakravarty, and S. K. Sanyal, "A Novel Schematic for Calibration of Large Phased Array Antenna Using Programmable Time-Delay Units," Progress In Electromagnetics Research, Vol. 65, 81-91, 2006.
doi:10.2528/PIER06080301
http://www.jpier.org/PIER/pier.php?paper=06080301

References:
1. Aumann, H. M., A. J. Fenn, and F. G. Willwerth, "Phased array antenna calibration and pattern prediction using mutual coupling measurements," IEEE Trans. Antennas Propag, Vol. 37, No. 7, 844-850, 1989.
doi:10.1109/8.29378

2. Fenn, A. J., H. M. Aumann, and F. G. Wilwerth, "Linear array characteristics with one-dimensional reactive-region near field scanning: Simulations and measurements," IEEE Trans. Antennas Propag., Vol. 39, No. 9, 1305-1311, 1991.
doi:10.1109/8.99038

3. Chakravarty, T., S. H. Damle, J. V. Chande, S. Halder, K. P. Ray, and A. Kulkarni, "Calibration of S T radar using radio source Virgo-A," Indian Journal of Radio & Space Physics, Vol. 22, No. 4, 103-107, 1993.

4. Sanyal, S. K., Q. M. Alfred, and T. Chakravarty, "A novel beam switching algorithm for programmable phased array antenna," Progress In Electromagnetics Research, Vol. 60, 187-196, 2006.
doi:10.2528/PIER05122502


© Copyright 2014 EMW Publishing. All Rights Reserved