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Progress In Electromagnetics Research
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SUB-MILLIMETER WAVE FREQUENCY SCANNING 8 x 1 ANTENNA ARRAY

By R. Camblor-Diaz, S. Ver-Hoeye, C. Vazquez-Antuna, G. R. Hotopan, M. Fernandez-Garcia, and F. Las Heras Andres

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Abstract:
In this work, a sub-millimeter wave frequency scanning 8 x 1 element antenna array is presented for its use in a terahertz imaging system operating in the 220-330 GHz frequency band. The antenna array is formed by eight open ended waveguides, a phase-shifting network implemented with WR-3 rectangular waveguides and a power divider. Dielectric rods are used to improve the radiation patterns at large beam-steering angles. Prototypes of antenna arrays with and without the dielectric rods have been manufactured and experimentally characterized. A beam-steering range greater than 40° has been obtained for a frequency sweep between 270 GHz and 330 GHz.

Citation:
R. Camblor-Diaz, S. Ver-Hoeye, C. Vazquez-Antuna, G. R. Hotopan, M. Fernandez-Garcia, and F. Las Heras Andres, "Sub-Millimeter Wave Frequency Scanning 8 X 1 Antenna Array," Progress In Electromagnetics Research, Vol. 132, 215-232, 2012.
doi:10.2528/PIER12072305
http://www.jpier.org/PIER/pier.php?paper=12072305

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