A planar one-sided bull-eye leaky-wave antenna (LWA) is presented with suppressed open stopband (OSB). The antenna consists of a grounded dielectric slab (GDS) loaded on top with a periodic arrangement of double metallic strips, whilst a TM0 surface-wave launcher (SWL) feed system is adopted for cylindrical-wave excitation. The radial structure is also properly designed to suppress the OSB effect thus achieving reduced dispersion features when frequency scanning through broadside, as typically observed with 1-D periodic LWAs. A method-of-moments (MoM) dispersion analysis is also used to characterize the attenuation and phase propagation constants of the supported leaky-wave (LW) mode. The resulting single-layer LWA is lowcost and it is well-matched from about 18 GHz to 22 GHz. The planar 2-D design also radiates a directive pencil beam pattern with gain values reaching 15 dBi.
One-Sided Leaky-Wave Antenna with TM Surface Wave Feeding and Open-Stopband Suppression / Kuznetcov, M.; Comite, D.; Podilchak, S. K.; Baccarelli, P.; Burghignoli, P.; Galli, A.; Freundorfer, A. P.; Antar, Y. M. M.. - (2021), pp. 1563-1564. ( 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 Marina Bay Sands; Singapore ) [10.1109/APS/URSI47566.2021.9704300].
One-Sided Leaky-Wave Antenna with TM Surface Wave Feeding and Open-Stopband Suppression
Comite D.;Podilchak S. K.;Baccarelli P.;Burghignoli P.;Galli A.;
2021
Abstract
A planar one-sided bull-eye leaky-wave antenna (LWA) is presented with suppressed open stopband (OSB). The antenna consists of a grounded dielectric slab (GDS) loaded on top with a periodic arrangement of double metallic strips, whilst a TM0 surface-wave launcher (SWL) feed system is adopted for cylindrical-wave excitation. The radial structure is also properly designed to suppress the OSB effect thus achieving reduced dispersion features when frequency scanning through broadside, as typically observed with 1-D periodic LWAs. A method-of-moments (MoM) dispersion analysis is also used to characterize the attenuation and phase propagation constants of the supported leaky-wave (LW) mode. The resulting single-layer LWA is lowcost and it is well-matched from about 18 GHz to 22 GHz. The planar 2-D design also radiates a directive pencil beam pattern with gain values reaching 15 dBi.| File | Dimensione | Formato | |
|---|---|---|---|
|
Kuznetcov_One Sided_2021.pdf
solo gestori archivio
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
559.32 kB
Formato
Adobe PDF
|
559.32 kB | Adobe PDF | Contatta l'autore |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
