Suppressed back‐lobe substrate‐integrated waveguide slot array antenna for X‐band | Zendy

Karami M. | Zendy; Sadeghzadeh R.A. | Zendy; Noferesti M. | Zendy; Chegeni M. | Zendy

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Suppressed back‐lobe substrate‐integrated waveguide slot array antenna for X‐band

Author(s) -

Karami M.,

Sadeghzadeh R.A.,

Noferesti M.,

Chegeni M.

Publication year - 2015

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2015.0604

Subject(s) - substrate (aquarium) , waveguide , slot antenna , optoelectronics , antenna (radio) , materials science , antenna array , beam waveguide antenna , main lobe , electrical engineering , optics , dipole antenna , coaxial antenna , computer science , electronic engineering , physics , engineering , geology , oceanography

Utilising an array that is constructed by combining short‐ended stubs and microstrip lines, a planar‐choke structure is presented. By locating the proposed chock structure on the bottom of the substrate‐integrated waveguide slot array antenna, undesired spillover current and edge diffractions are removed. Measurement result show that in the operational bandwidth the backward radiation is reduced by more than 20 dB and the side‐lobe level is improved by 5 dB without degrading of the antenna's electrical performance.

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