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Complex beam steering from substrate integrated waveguide leaky wave antenna array
Author(s) -
Noumi Rihem,
Machac Jan,
Gharsallah Ali
Publication year - 2018
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21548
Subject(s) - leaky wave antenna , beam steering , antenna (radio) , optics , beam waveguide antenna , radiation pattern , antenna measurement , periscope antenna , physics , waveguide , beam (structure) , antenna efficiency , reconfigurable antenna , broadside , antenna array , acoustics , electrical engineering , engineering , microstrip antenna
A wideband single‐beam/dual‐beam leaky wave antenna (LWA) system based on periodic composite right‐left handed substrate integrated waveguide is presented in this article. The proposed array can be a good candidate for tracking applications and intelligent protection systems. The system is contributed by installing in parallel two different antenna structures. The first antenna transmits in the frequency band 6.9‐11 GHz where the second antenna radiates in the band 8.9‐13.8 GHz, the frequencies of the broadside radiation are allocated at 7.8 and 10.2 GHz for the first and the second LWA, respectively. The results demonstrate the potential of the proposed system to continuously steer a single or a dual beams from −72° to 73°. The antenna system has a flexible beam scanning mechanism, good radiation efficiency, and maximum gain of 15.2 dBi. The simulation and the measurement results match well with the theoretical analysis described in the article.