TY - JOUR
T1 - Application of electromagnetic bandgaps to the design of ultra-wide bandpass filters with good out-of-band performance
AU - García-García, Joan
AU - Bonache, Jordi
AU - Martín, Ferran
PY - 2006/12/1
Y1 - 2006/12/1
N2 - In this study, a new technique for the design of ultrawide bandpass filters with spurious suppression over a very wide band is presented. The method consists on the combination of a well-known analytical design approach to achieve wide bandwidths with an electromagnetic bandgap structure, which is fundamental for spurious suppression. To illustrate the technique, a microstrip of ultra-wide bandpass filter centered at 3.4 GHz with a bandwidth covering 4.8 GHz is implemented in an Arlon substrate (permittivity εr = 2.4, thickness h = 0.675 mm). Measured filter characteristics are good with in-band insertion losses below 0.90 dB and return losses better than 10 dB. Out-of-band performance is also good with spurious passband attenuation higher than 30 dB up to at least 20 GHz. © 2006 IEEE.
AB - In this study, a new technique for the design of ultrawide bandpass filters with spurious suppression over a very wide band is presented. The method consists on the combination of a well-known analytical design approach to achieve wide bandwidths with an electromagnetic bandgap structure, which is fundamental for spurious suppression. To illustrate the technique, a microstrip of ultra-wide bandpass filter centered at 3.4 GHz with a bandwidth covering 4.8 GHz is implemented in an Arlon substrate (permittivity εr = 2.4, thickness h = 0.675 mm). Measured filter characteristics are good with in-band insertion losses below 0.90 dB and return losses better than 10 dB. Out-of-band performance is also good with spurious passband attenuation higher than 30 dB up to at least 20 GHz. © 2006 IEEE.
KW - Electromagnetic bandgap (EBG)
KW - Microstrip filters
KW - Ultra-wideband (UWB) technology
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-33847747458&partnerID=MN8TOARS
U2 - https://doi.org/10.1109/TMTT.2006.886155
DO - https://doi.org/10.1109/TMTT.2006.886155
M3 - Article
VL - 54
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
SN - 0018-9480
ER -