Wide-Angular Scanning Performance Enhancement in Linear Arrays via Combining Integrated In-line Subarrays and Amplitude Tapering

None, None; None, None; None, None; None, None

Wide-Angular Scanning Performance Enhancement in Linear Arrays via Combining Integrated In-line Subarrays and Amplitude Tapering

Conference Paper (2020)

Author(s)

Fannush Shofi Akbar (Institut Teknologi Sepuluh Nopember)

Gamantyo Hendrantoro (Institut Teknologi Sepuluh Nopember)

Leo Ligthart (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Ioan E. Lager (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Research Group

Electrical Engineering Education

DOI related publication

https://doi.org/10.23919/EuCAP48036.2020.9135339 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:aa5d0b64-b501-4bdf-b129-3dc225a1a6d2

More Info

expand_more

Publication Year

2020

Language

English

Research Group

Electrical Engineering Education

Article number

9135339

ISBN (electronic)

9788831299008

Event

14th European Conference on Antennas and Propagation, EuCAP 2020 (2020-03-15 - 2020-03-20), Copenhagen, Denmark

Downloads counter

184

Abstract

An advanced design, adding a significant first sidelobes level (FSLL) improvement to a previously introduced wide-angular-scanning, linear array prototype with demonstrated scan-loss compensation (SLC) and sidelobes suppression features is discussed. The linear array makes use of in-line subarrays for SLC and an additional amplitude taper in its central, uniform region for lowering the FSLL with as much as 4\mathrm{d}\mathrm{B} at \pm 60 {\mathrm{o}} scanning (13\mathrm{d}\mathrm{B} at \pm 20 {\mathrm{o}} scanning). Several Taylor-type amplitudes tapers are compared, the best overall performance improvement being observed for a -18dB prototype taper. The advocated solution is highly suitable to high-sensitivity radars requiring a fast-scanning, fan-beam.