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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/3655

Title: Investigations on the radiation characteristics of new hollow dielectric horn antennas
Authors: Joseph, V P
Dr.Mathew, K T
Keywords: Different types of antennas
The Network analyzer
Fabrication of the test antenna
Antenna design
Issue Date: Jul-1999
Publisher: Cochin University of Science And Technology
Abstract: Investigations on the design and development of certain new hollow dielectric hom antennas of rectangular cross section have been carried out. The main shortcoming of the existing ordinary hollow dielectric hom antenna (HDH) is the abrupt discontinuity at the feed-end. A new launching technique using a dielectric rod is introduced to overcome this limitation. Also a strip loading technique is employed for further modification of the antenna. Radiation parameters of new I-IDH antennas of Eplane sectoral, H-plane sectoral and pyramidal types were studied and are found to be very attractive. Theoretical approach based on Marcatili’s principle and two aperture theory along with diffraction theory and image theory is used to support the experimental findings. The HDH is considered as solid horn of effective dielectric constant and the aperture field is evaluated. The antenna is excited by the open waveguide in the dominant TE1o mode and so the existence of any hybrid mode is mled-out. The theoretical results are observed to be in good agreement with the experimental results.
Description: Department of Electronics, Cochin University of Science and Technology
URI: http://dyuthi.cusat.ac.in/purl/3655
Appears in Collections:Faculty of Technology

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