An Integrated Switchable EM Absorber and Beam Switchable Radiator
In this research work, a multifunctional metamaterial inspired surface is designed for two different applications, namely, electromagnetic (EM) absorber and radiator with pattern agility. The designed surface consists of periodic arrays of metallic loops and circular patches printed on a thin ground...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2020-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9234530/ |
| _version_ | 1818616852427833344 |
|---|---|
| author | Saeed Ur Rahman Qunsheng Cao Muhammad Azeem Akbar Ahmed Alsanad Abdul Gumaei Yi Wang |
| author_facet | Saeed Ur Rahman Qunsheng Cao Muhammad Azeem Akbar Ahmed Alsanad Abdul Gumaei Yi Wang |
| author_sort | Saeed Ur Rahman |
| collection | DOAJ |
| description | In this research work, a multifunctional metamaterial inspired surface is designed for two different applications, namely, electromagnetic (EM) absorber and radiator with pattern agility. The designed surface consists of periodic arrays of metallic loops and circular patches printed on a thin grounded dielectric slab. Lumped resistors are fixed in the outer ring where the inner patch is connected to the feeding network through metallic vias. Firstly, the basic unit cell of the surface is utilized as a dual-band EM absorber. Secondly, the same surface is utilized as a beam switching radiator. Each unit cell has two switchable feeding points which are connected to a single-pole double-throw (SPDT) switch designed on the bottom layer. The surface is symmetrical therefore the excitation of each unit cell at two feeding ports can produce a phase shift of 180°. By properly selecting the feeding point of the four elements, the surface can generate sum-beams and difference-beams. The surface exhibit low radar cross section (RCS), high gain, and high efficiency. A prototype of 4 × 4 elements array is manufactured and experimentally verified in an anechoic chamber. |
| first_indexed | 2024-12-16T16:56:23Z |
| format | Article |
| id | doaj.art-8b904cc779c74d2da8ce09f88669f7a9 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T16:56:23Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-8b904cc779c74d2da8ce09f88669f7a92022-12-21T22:23:52ZengIEEEIEEE Access2169-35362020-01-01819305019305910.1109/ACCESS.2020.30327829234530An Integrated Switchable EM Absorber and Beam Switchable RadiatorSaeed Ur Rahman0https://orcid.org/0000-0002-2479-0823Qunsheng Cao1https://orcid.org/0000-0002-2712-3452Muhammad Azeem Akbar2https://orcid.org/0000-0002-6880-4991Ahmed Alsanad3https://orcid.org/0000-0003-1702-8643Abdul Gumaei4https://orcid.org/0000-0001-8512-9687Yi Wang5College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaDepartment of Information Systems, College of Computer and Information Sciences, STC’s Artificial Intelligence Chair, King Saud University, Riyadh, Saudi ArabiaDepartment of Information Systems, College of Computer and Information Sciences, STC’s Artificial Intelligence Chair, King Saud University, Riyadh, Saudi ArabiaCollege of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaIn this research work, a multifunctional metamaterial inspired surface is designed for two different applications, namely, electromagnetic (EM) absorber and radiator with pattern agility. The designed surface consists of periodic arrays of metallic loops and circular patches printed on a thin grounded dielectric slab. Lumped resistors are fixed in the outer ring where the inner patch is connected to the feeding network through metallic vias. Firstly, the basic unit cell of the surface is utilized as a dual-band EM absorber. Secondly, the same surface is utilized as a beam switching radiator. Each unit cell has two switchable feeding points which are connected to a single-pole double-throw (SPDT) switch designed on the bottom layer. The surface is symmetrical therefore the excitation of each unit cell at two feeding ports can produce a phase shift of 180°. By properly selecting the feeding point of the four elements, the surface can generate sum-beams and difference-beams. The surface exhibit low radar cross section (RCS), high gain, and high efficiency. A prototype of 4 × 4 elements array is manufactured and experimentally verified in an anechoic chamber.https://ieeexplore.ieee.org/document/9234530/EM absorberEM radiatorpattern agilitylow RCShigh gain |
| spellingShingle | Saeed Ur Rahman Qunsheng Cao Muhammad Azeem Akbar Ahmed Alsanad Abdul Gumaei Yi Wang An Integrated Switchable EM Absorber and Beam Switchable Radiator IEEE Access EM absorber EM radiator pattern agility low RCS high gain |
| title | An Integrated Switchable EM Absorber and Beam Switchable Radiator |
| title_full | An Integrated Switchable EM Absorber and Beam Switchable Radiator |
| title_fullStr | An Integrated Switchable EM Absorber and Beam Switchable Radiator |
| title_full_unstemmed | An Integrated Switchable EM Absorber and Beam Switchable Radiator |
| title_short | An Integrated Switchable EM Absorber and Beam Switchable Radiator |
| title_sort | integrated switchable em absorber and beam switchable radiator |
| topic | EM absorber EM radiator pattern agility low RCS high gain |
| url | https://ieeexplore.ieee.org/document/9234530/ |
| work_keys_str_mv | AT saeedurrahman anintegratedswitchableemabsorberandbeamswitchableradiator AT qunshengcao anintegratedswitchableemabsorberandbeamswitchableradiator AT muhammadazeemakbar anintegratedswitchableemabsorberandbeamswitchableradiator AT ahmedalsanad anintegratedswitchableemabsorberandbeamswitchableradiator AT abdulgumaei anintegratedswitchableemabsorberandbeamswitchableradiator AT yiwang anintegratedswitchableemabsorberandbeamswitchableradiator AT saeedurrahman integratedswitchableemabsorberandbeamswitchableradiator AT qunshengcao integratedswitchableemabsorberandbeamswitchableradiator AT muhammadazeemakbar integratedswitchableemabsorberandbeamswitchableradiator AT ahmedalsanad integratedswitchableemabsorberandbeamswitchableradiator AT abdulgumaei integratedswitchableemabsorberandbeamswitchableradiator AT yiwang integratedswitchableemabsorberandbeamswitchableradiator |