NDLI: New fast and robust modelling algorithms for electrically large antennas and platforms

Content Provider	IEEE Xplore Digital Library
Author	Jorgensen, E. Borries, O. Meincke, P. Min Zhou Vesterdal, N.
Copyright Year	2015
Description	Author affiliation: TICRA, Copenhagen, Denmark (Jorgensen, E.; Borries, O.; Meincke, P.; Min Zhou; Vesterdal, N.)
Abstract	This paper presents two new modelling algorithms that was recently added to the commercially available GRASP software package for electrically large antenna and scattering problems. In particular, a new higher-order multilevel fast multipole solver (HO-MLFMM) provides very high simulation accuracy while requiring significantly less memory and CPU time than the commonly available low-order MLFMM. At the same time, the solver incorporates a generalised form of the underlying surface integral equations, which allows the use of non-connected meshes and enhances the robustness in real-life applications. As a further addition to GRASP, we outline a new Fast-PO algorithm which provide accelerated integration of Physical Optics currents as well as surface currents in general. The algorithm eliminates some of the limitations of previously published methods, e.g., by allowing observation points located well within the near-field region of the antenna without resorting to a much slower direct surface integration. The capabilities of the new algorithms are illustrated by examples involving a large reflector antenna ground station and a detailed model of a communication satellite.
Starting Page	1
Ending Page	5
File Size	3100730
Page Count	5
File Format	PDF
e-ISBN	9788890701856
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-04-13
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	EurAAP
Subject Keyword	fast physical optics reflector antennas Scattering Standards Accuracy platform interactions multi-level fast multipole method Integral equations Memory management Robustness method of moments Antennas higher-order basis function
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in