802GHz integrated horn antennas imaging array

Details 802GHz integrated horn antennas imaging array 802GHz integrated horn antennas imaging array

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ijimw..12..481a&link_type=abstract

International Journal of Infrared and Millimeter Waves (ISSN 0195-9271), vol. 12, May 1991, p. 481-486.

Astronomy and Astrophysics

Astronomy

2

Antenna Arrays, Antenna Radiation Patterns, Horn Antennas, Imaging Techniques, Plasma Diagnostics, Antenna Design, Radio Astronomy, Very High Frequencies

Scientific paper

Pattern measurements at 802GHz of a single element in 256-element integrated horn imaging array are presented. The integrated-horn antenna consists of a dipole-antenna suspended on a 1-micron dielectric membrane inside a pyramidal cavity etched in silicon. The theoretical far-field patterns, calculated using reciprocity and Floquet-modes representation of the free-space field, agree well with the measured far-field patterns at 802GHz. The associated directivity for a 1.40 lambda horn aperture, calculated from the measured E and H-plane patterns is 12.3dB + or - 0.2dB. This work demonstrates that high-efficiency integrated-horn antennas are easily scalable to terahertz frequencies and could be used for radio-astronomical and plasma-diagnostic applications.

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