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Efficient DRW antenna for quasi‐optics feed in W‐band imaging radiometer system
Author(s) -
Kim WonGyum,
Thakur Jay Prakash,
Kim YongHoon
Publication year - 2010
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.25107
Subject(s) - beamwidth , optics , radiometer , antenna (radio) , radiation pattern , microwave , extremely high frequency , return loss , w band , physics , engineering , electrical engineering , telecommunications
Modification in tapered dielectric rod waveguide antenna is achieved by the implementation of step change in width in metallic waveguide transition. The proposed antenna has circular symmetric radiation pattern and gain about 15.3 dB with improved return loss and side lobes level at W‐band. It has 10 dB beamwidth 53.2° and 48.6° in the E‐ and H‐plane. Proposed antenna can be used for a millimeter wave quasi‐optics feed array design in W‐band imaging radiometer design. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1221–1223, 2010; Published online in Wiley InterScience (www. interscience.wiley.com). DOI 10.1002/mop.25107