Title :
Band-notched UWB equiangular spiral antenna
Author :
Jeon, Jae H. ; Chang, John T. ; Anh-Vu Pham
Author_Institution :
Lawrence Livermore Nat. Lab., Livermore, CA, USA
Abstract :
A band-notched ultra-wideband equiangular spiral antenna is presented. With the spiral antenna on the top layer, bottom side is used for a secondary resonant structure to create a notch filter response. VSWR of 2:1 is achieved for the FCC UWB band, which is 3.1 to 10.6 GHz. Notch response is created over the IEEE 802.11a band, 5.15 to 5.85 GHz, VSWR reaching 12:1 at the center of the band at 5.5 GHz. Suppression of radiation in this band is evident in its gain profile over frequency and in current density plot around the resonant structure as well.
Keywords :
antenna radiation patterns; current density; microwave antennas; microwave filters; notch filters; spiral antennas; ultra wideband antennas; FCC UWB band; IEEE 802.11a band; VSWR; band-notched UWB equiangular spiral antenna; current density plot; frequency 3.1 GHz to 10.6 GHz; notch filter response; radiation suppression; resonant structure; secondary resonant structure; ultrawideband antenna; Antenna measurements; Current density; Impedance matching; Resonant frequency; Spirals; Ultra wideband antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904987
