Systems for control and diagnosis of technical state of phased arrays

Usin, V. A.; Markov, V.I.; Pomazanov, S. V.; Usina, A.V.; Филоненко, Александр Борисович

doi:10.3103/s0735272711020051

Cited by 2 publications

(1 citation statement)

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“…When fully implemented, MPAR will employ between 7 and 20 million transmit/receive (T/R) modules requiring over 100 million Monolithic Microwave Integrated Circuits (MMICs) and will be the largest phased array program ever fielded with production volumes typical of consumer applications. The calibration of phased array radar systems has been an important area of discussion over the last several years [1][2][3][4][5], and Section II presents a technical approach for the calibration of a subarray that uses two S-band panels. Each panel of 8 × 8 elements is currently under development at MIT Lincoln Laboratory [6,7].…”

Section: Introductionmentioning

confidence: 99%

A method for improved cross-pol isolation based on the use of auxilliary elements

Yeary

Conway

Herd

et al. 2013

2013 IEEE International Symposium on Phased Array Systems and Technology

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This paper describes a method to answer the following questions: can several of the elements of a phased array be employed as auxiliary (AUX) elements and how can the phase of each be adjusted so that the (1) cross-polarization (cross-pol) isolation is minimized to 40 dB, (2) the sidelobe levels of the main lobe are minimally impacted, and (3) the width and height of the main lobe are minimally impacted? This calibration work is being completed as one component of Lincoln Laboratory's effort within the multifunction phased array radar (MPAR) initiative. Devoting a few of the elements to serve as the AUX channels to specifically operate to mitigate the effects of the cross-pol influence, the distributed sidelobe levels will not suffer much impact; yet, the impact of the AUX elements will have deepened the cross-pol isolation at the peak of the co-polar beam can occur because the AUX elements can achieve a high degree of narrowband angular resolution.

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