A New Miniaturized Active Frequency Selective Surface with Convoluted Element for UHF Applications
Abstract This paper presents a study on Active Frenquency Selective Surface (AFSS) for applications in modern wireless communication systems. Initially, an FSS with an element inspired by convoluted metallic lines printed on a dielectric substrate of FR-4 is proposed. The unit cell size is equal to...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
2024-04-01
|
| Series: | Journal of Microwaves, Optoelectronics and Electromagnetic Applications |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742024000100203&tlng=en |
| _version_ | 1797216748398706688 |
|---|---|
| author | Mychael Jales Duarte Adaildo Gomes D’Assunção Valdemir Praxedes da Silva Neto |
| author_facet | Mychael Jales Duarte Adaildo Gomes D’Assunção Valdemir Praxedes da Silva Neto |
| author_sort | Mychael Jales Duarte |
| collection | DOAJ |
| description | Abstract This paper presents a study on Active Frenquency Selective Surface (AFSS) for applications in modern wireless communication systems. Initially, an FSS with an element inspired by convoluted metallic lines printed on a dielectric substrate of FR-4 is proposed. The unit cell size is equal to 10.2 % of the wavelength in free space for the frequency of 1.53 GHz. An equivalent circuit model is proposed to better understand the operating principle of the FSS. Four Schottky diodes have been inserted in a symmetrical manner for switching, and three operating states are analyzed (all diodes in off state, all diodes directly polarized and therefore conducting, and two diodes conducting and two diodes off). The reconfiguration allows the frequency response to vary between frequencies from 0.8 GHz to 2.5 GHz. The FSS proved to be stable with respect to the angle of incidence of the plane wave on the circuit surface. The simulated numerical results for the designed prototype was obtained by ANSYS HFSS software. The prototype was built and the experimental characterization of the transmission coefficients, bandwidth and resonance frequency was performed. The values obtained in the experiment were compared and discussed with the simulation results, which showed good agreement. |
| first_indexed | 2024-04-24T11:50:53Z |
| format | Article |
| id | doaj.art-22a5e2ff6d1d4a03bd0ccdeb9b2bfdeb |
| institution | Directory Open Access Journal |
| issn | 2179-1074 |
| language | English |
| last_indexed | 2024-04-24T11:50:53Z |
| publishDate | 2024-04-01 |
| publisher | Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo |
| record_format | Article |
| series | Journal of Microwaves, Optoelectronics and Electromagnetic Applications |
| spelling | doaj.art-22a5e2ff6d1d4a03bd0ccdeb9b2bfdeb2024-04-09T07:41:56ZengSociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de EletromagnetismoJournal of Microwaves, Optoelectronics and Electromagnetic Applications2179-10742024-04-0123110.1590/2179-10742024v23i1278519A New Miniaturized Active Frequency Selective Surface with Convoluted Element for UHF ApplicationsMychael Jales Duartehttps://orcid.org/0000-0002-7540-2640Adaildo Gomes D’Assunçãohttps://orcid.org/0000-0003-0849-196XValdemir Praxedes da Silva Netohttps://orcid.org/0000-0003-3867-3297Abstract This paper presents a study on Active Frenquency Selective Surface (AFSS) for applications in modern wireless communication systems. Initially, an FSS with an element inspired by convoluted metallic lines printed on a dielectric substrate of FR-4 is proposed. The unit cell size is equal to 10.2 % of the wavelength in free space for the frequency of 1.53 GHz. An equivalent circuit model is proposed to better understand the operating principle of the FSS. Four Schottky diodes have been inserted in a symmetrical manner for switching, and three operating states are analyzed (all diodes in off state, all diodes directly polarized and therefore conducting, and two diodes conducting and two diodes off). The reconfiguration allows the frequency response to vary between frequencies from 0.8 GHz to 2.5 GHz. The FSS proved to be stable with respect to the angle of incidence of the plane wave on the circuit surface. The simulated numerical results for the designed prototype was obtained by ANSYS HFSS software. The prototype was built and the experimental characterization of the transmission coefficients, bandwidth and resonance frequency was performed. The values obtained in the experiment were compared and discussed with the simulation results, which showed good agreement.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742024000100203&tlng=enActive Frequency Selective SurfaceAFSSequivalent circuit modelSchottky diodes |
| spellingShingle | Mychael Jales Duarte Adaildo Gomes D’Assunção Valdemir Praxedes da Silva Neto A New Miniaturized Active Frequency Selective Surface with Convoluted Element for UHF Applications Journal of Microwaves, Optoelectronics and Electromagnetic Applications Active Frequency Selective Surface AFSS equivalent circuit model Schottky diodes |
| title | A New Miniaturized Active Frequency Selective Surface with Convoluted Element for UHF Applications |
| title_full | A New Miniaturized Active Frequency Selective Surface with Convoluted Element for UHF Applications |
| title_fullStr | A New Miniaturized Active Frequency Selective Surface with Convoluted Element for UHF Applications |
| title_full_unstemmed | A New Miniaturized Active Frequency Selective Surface with Convoluted Element for UHF Applications |
| title_short | A New Miniaturized Active Frequency Selective Surface with Convoluted Element for UHF Applications |
| title_sort | new miniaturized active frequency selective surface with convoluted element for uhf applications |
| topic | Active Frequency Selective Surface AFSS equivalent circuit model Schottky diodes |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742024000100203&tlng=en |
| work_keys_str_mv | AT mychaeljalesduarte anewminiaturizedactivefrequencyselectivesurfacewithconvolutedelementforuhfapplications AT adaildogomesdassuncao anewminiaturizedactivefrequencyselectivesurfacewithconvolutedelementforuhfapplications AT valdemirpraxedesdasilvaneto anewminiaturizedactivefrequencyselectivesurfacewithconvolutedelementforuhfapplications AT mychaeljalesduarte newminiaturizedactivefrequencyselectivesurfacewithconvolutedelementforuhfapplications AT adaildogomesdassuncao newminiaturizedactivefrequencyselectivesurfacewithconvolutedelementforuhfapplications AT valdemirpraxedesdasilvaneto newminiaturizedactivefrequencyselectivesurfacewithconvolutedelementforuhfapplications |