Open AccessMillimetre‐wave air‐filled substrate integrated waveguide slot array antenna
Author(s) -
Parment F.,
Ghiotto A.,
Vuong T.P.,
Duchamp J.M.,
Wu K.
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.0102
Subject(s) - beamwidth , slot antenna , antenna (radio) , extremely high frequency , materials science , slotted waveguide , antenna array , radiation pattern , optics , antenna efficiency , substrate (aquarium) , radiation , antenna measurement , optoelectronics , acoustics , electrical engineering , physics , engineering , geology , oceanography
An air‐filled substrate integrated waveguide (AFSIW) slot array antenna based on multilayer PCB process is proposed. For comparison and demonstration purposes, 1 × 4 slot array antennas based on both AFSIW and conventional dielectric‐filled SIW (DFSIW) operating at 30.5 GHz are designed, fabricated and measured. The exampled AFSIW 1 × 4 slot array antenna achieves 44 and 18% narrower measured H‐plane and E‐plane half‐power beamwidth, respectively, and simulated radiation efficiency improved by 1.6%, resulting in an overall measured gain improvement of 3.5 dB compared with its DFSIW counterpart. This antenna is of high interest for the design of efficient arrays based on high‐performance AFSIW feeding network.