Journal article
Design for steering accuracy in antenna arrays using shared optical phase shifters
IEEE transactions on antennas and propagation, v 37(9), pp 1102-1108
01 Sep 1989
Abstract
Uniform linear phased arrays where many radiating elements share a relatively small number of phase shifters are investigated. Such architectures arise in arrays which derive the time delays in the signal paths from a small group of independent phase shifters. In particular, a true time-delay device which has been suggested recently for optically controlled arrays is used as the basic phase shifter. Different architectures, viz. alternative procedures of deriving the necessary time delay for each antenna in the face of phase-shifter inaccuracies, are examined. The variance of the steered beam's direction is used as the performance criterion. The direction-optimal architecture is obtained by means of quadratic programming, and is shown not to be unique. The nonuniqueness of the optimal architecture is exploited to improve other characteristics of the array's beam shape, and the optimal solution is shown to compare favorably with a suboptimal interleaved solution which is easier to implement.
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Details
- Title
- Design for steering accuracy in antenna arrays using shared optical phase shifters
- Creators
- Moshe Kam - Drexel UniversityPeter R. Herczfeld - Drexel UniversityJeffrey Wilcox - Drexel University
- Publication Details
- IEEE transactions on antennas and propagation, v 37(9), pp 1102-1108
- Publisher
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1989AP74200005
- Scopus ID
- 2-s2.0-0024738001
- Other Identifier
- 991019173903604721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Electrical & Electronic
- Telecommunications