NDLI: Two-Way Pattern Grating Lobe Control for Distributed Digital Subarray Antennas

Content Provider	IEEE Xplore Digital Library
Author	Bo-Kai Feng Jenn, D.C.
Copyright Year	1963
Abstract	An approach to controlling the two-way pattern (i.e., the product of the transmitting and receiving antenna patterns) for a distributed digital subarray antenna (DDSA) is presented. Collectively combining periodic widely separated subarrays results in grating lobes (GLs), and they are unwanted because of the ambiguities that accompany them. The approach to GL control presented here involves a combination of conventional suppression methods on the transmitting side and in the digital beamforming on the receiving side, filling the gaps between the subarrays with “virtual” elements, thus forming a contiguous array. Individually, the transmitting and receiving antenna patterns may not have adequate performance, but it is demonstrated that if designed to complement each other, the two-way pattern can achieve ultralow sidelobe performance. The effects of receiving element signal-to-noise ratio (SNR) and errors in calibration are also addressed.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	4375
Ending Page	4383
Page Count	9
File Size	2241470
File Format	PDF
ISSN	0018926X
Volume Number	63
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Gratings Filling Signal to noise ratio Array signal processing Antenna arrays Receiving antennas two-way pattern Distributed subarray antennas virtual elements grating lobe suppression grating lobe (GL) suppression
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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