Introduction To Phased Array Radars

A. Y. Harper

doi:10.1117/12.955973

28 December 1977 Introduction To Phased Array Radars

A. Y. Harper

Proceedings Volume 0128, Effective Utilization of Optics in Radar Systems; (1977) https://doi.org/10.1117/12.955973
Event: Effect Utilization of Optics in Radar Systems, 1977, Huntsville, United States

Abstract

This paper describes a phased array radar emphasizing differences from conventional radars and explores the operational advantages of these differences. Subjects include the general principal of beam formation by the phasing of RF emissions from a large number of radiating elements, the establishment of bandwidth and element spacing constraints and the relationship of the phase shifter and time delay units. Frequency scanned arrays are contrasted with phase steered arrays, and the architectural possibilities associated with corporate fed, space fed, and reflecting arrays are covered in comparative terms. The paper highlights the operational advantages of phased arrays from the standpoint of traffic handling capacity. The operational advantage of bandwidth, inertialess scanning and reliability are given consideration. System situations which justify phased arrays are delineated. Finally, the latest trend in phased arrays, that of total solid state architectures, is singled out as an example.

Citation Download Citation

A. Y. Harper "Introduction To Phased Array Radars", Proc. SPIE 0128, Effective Utilization of Optics in Radar Systems, (28 December 1977); https://doi.org/10.1117/12.955973

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