Accession Number:

ADA379420

Title:

Improved Sidelobe Performance of Array Antennas with the Use of Overlapping Sub-Array Architecture

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Rengarajan, S. R.
• Rao, J. B.

Report Date:

2000-06-16

Pagination or Media Count:

16.0

Abstract:

Array antennas with sub-array architecture are frequently employed in phased array systems. However, the sub-array architecture can introduce severe pattern degradation in the form of higher sidelobes that arise as the frequency is changed or when multiple beams are generated by combining outputs of sub-arrays with a digital beam former. This report presents results of an investigation on the use of overlapping sub-arrays for improving the sidelobe performance.

Descriptors:

• *ANTENNA ARRAYS
• *SIDELOBES
• *PHASED ARRAYS
• DIGITAL SYSTEMS
• DEGRADATION
• PERFORMANCE(ENGINEERING)
• ANTENNA RADIATION PATTERNS
• MULTIPLE BEAMS(RADIATION)

Subject Categories:

• Electrical and Electronic Equipment
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE