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Micro-Fabricated 130–180 GHz Frequency Scanning Waveguide Arrays

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6 Author(s)
Cullens, E.D. ; Dept. of Electr. & Comput. Eng., Univ. of Colorado, Boulder, CO, USA ; Ranzani, L. ; Vanhille, K.J. ; Grossman, E.N.
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This paper describes frequency scanning slot arrays operating from 130 to 180 GHz. The arrays are micro-fabricated using the PolyStrata sequential copper deposition process. Measured reflection coefficient and radiation patterns agree with HFSS full-wave simulations. The voltage standing wave ratio is less than 1.75:1 over the entire frequency range, and the measured scanning is 1.04°/ GHz from 130 to 150 GHz and 32.5° over the full frequency range. The measured gain is 15.5 dBi for a 10-element array at 150 GHz and 18.9 dBi for a 20-element array at 150 GHz with about 3 dB of variation over the scan range.

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Antennas and Propagation, IEEE Transactions on  (Volume:60 ,  Issue: 8 )