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Accurate modeling of dual dipole and slot elements used with photomixers for coherent terahertz output power

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6 Author(s)
Duffy, S.M. ; Lincoln Lab., MIT, Lexington, MA, USA ; Verghese, S. ; McIntosh, K.A. ; Jackson, A.
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Accurate circuit models derived from electromagnetic simulations have been used to fabricate photomixer sources with optimized high-impedance antennas. Output powers on the order of 1 μW were measured for various designs spanning 0.6-2.7 THz. The improvement in output power ranged from 3 to 10 dB over more conventionally designed photomixers using broad-band log-spiral antennas. Measured data on single dipoles, twin dipoles, and twin slots are in good agreement with the characteristics predicted by the design simulations

Published in:

Microwave Theory and Techniques, IEEE Transactions on  (Volume:49 ,  Issue: 6 )

Date of Publication:

Jun 2001

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