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Development of shared aperture dual configuration antenna for S/Ka‐band communication
Author(s) -
Chakrabarti Satyajit
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29515
Subject(s) - ka band , optics , physics , port (circuit theory) , cassegrain antenna , microwave , bandwidth (computing) , multi band device , electrical engineering , antenna measurement , engineering , antenna (radio) , periscope antenna , telecommunications
Shared aperture dual configuration antenna has been developed for dual linearly/circularly polarized operation at S/Ka‐band. The antenna operates in cassegrain configuration at Ka‐band and in prime focus configuration at S‐band using the same parabolic reflector. Measured gain of the overall antenna at Ka‐band is better than 48 dBi in each port and interport isolation is better than 19 dB. Measured gain at S‐band is better than 28 dBi in each port and interport isolation is better than 20 dB. Measured 2:1 VSWR bandwidth is better than 7% at either port at Ka‐band and is about 10% at either port at S‐band. Measured 3‐dB axial‐ratio bandwidth is better than 7% at each port at Ka‐band. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:139–145, 2016