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C. C. Chin M. J. Wang W. L. Shah W. Zhang H. W. Cheng S. C. Shi T. Noguchi 《International Journal of Infrared and Millimeter Waves》2002,23(5):731-744
We have designed and fabricated a fixed tuned low noise 600-700 GHz SIS mixer. Twin junctions connected in parallel was employed in the mixer design. A short microstrip tuning structure was used to minimize the RF signal loss at frequency above the energy gap. A receiver noise temperature below 200 K (without any loss correction) in the frequency range of 630 to 660 GHz was recorded. The lowest noise temperature of the receiver was 181 K (without any loss correction) at 656 GHz. 相似文献
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