Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10071/15687
Autoria: | Lima, E. B. Costa, J. R. Fernandes, C. A. |
Data: | 2017 |
Título próprio: | Wideband and high-selectivity dual-band filter for Ka-Band satellite antennas |
Volume: | 16 |
Paginação: | 1627 - 1630 |
ISSN: | 1536-1225 |
DOI (Digital Object Identifier): | 10.1109/LAWP.2017.2657543 |
Palavras-chave: | Cutoff rectangular waveguide Dual-band filter E-plane loading Filter selectivity Split-ring resonator (SRR) |
Resumo: | A dual-band miniaturized Ka-band filter is presented, taking advantage of transmission in cut-off rectangular waveguides periodically loaded in the E-plane with Split-Ring Resonators (SRRs). High selectivity, wide bandwidth and high out-of-band rejection are achieved in a compact form factor. The use of SRRs in a waveguide configuration proves to be a valid and promising solution for the design of dual-band filters. The filter is specifically designed for Ka-band and a prototype was manufactured and its performance measured, providing a reasonably flat transmission at both 20 and 30 GHz sub-bands. For both bands the power roll-off rate is higher than 55 dB/decade, translating into a sharper than 10 dB drop per 0.2 GHz in a 38 × 6.6 × 4.5 mm3 device. The filter half-power bandwidth is B_20 = 1.1 GHz at 20 GHz (18.4 - 19.5 GHz) and B_30 = 1.2 GHz at 30 GHz (27.8 - 29.0 GHz). |
Arbitragem científica: | yes |
Acesso: | Acesso Aberto |
Aparece nas coleções: | IT-RI - Artigos em revistas científicas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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FINAL VERSION.pdf | Pós-print | 702,7 kB | Adobe PDF | Ver/Abrir |
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