Abstract
The design and performance of a fixed-tuned W-band SIS mixer with a wide band IF of 4.0-7.5 GHz is presented. Waveguide-to-stripline transition of the SIS mixer is designed using the lumped-gap-source port provided by HFSSTM. Measured receiver noise temperature is less than 25 K in the frequency range of 95-120 GHz, with a minimum value of around 19 K achieved. Mixer noise temperature is determined to be about 8.5 K, which is around twice the quantum limit (i.e., 2hw/k). In spite of the high IF frequencies (f 0 = 6 GHz), the performance of the SIS receiver is comparable or even superior to those of the best mechanically-tunable waveguide SIS receivers at low IF frequencies (f 0 = 1.5 GHz). This result suggests that it is easy to design waveguide-to-stripline transitions without scale-model measurements.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. R. Kerr and S.K. Pan, "Some recent developments in the design of SIS mixers", Int. J. Infrared and Millimeter Waves, vol.11, no.10, pp.1169-1187, 1990.
Getting Started: An Antenna Problem, Ansoft corporation, Oct. 1999.
W. Zhang, S.C. Shi, and W.L. Shan, "Characterization of the Embedding Impedance for a 660 GHz Waveguide SIS Mixer", Infrared and Millimeter Waves, vol.21, no.6, pp.465-468, 2002.
A. V. Räisänen, W. R. McGrath, D. G. Creta, and P. L. Richards, "Scaled Model Measurements of Embedding Impedances for SIS Waveguide Mixers", Int. J. Infrared and Millimeter Waves, vol.6, no.12, pp.1169-1189, 1985.
T. Noguchi, S. C. Shi, and J. Inatani, "An SIS mixer using two junctions connected in parallel", IEEE Trans. Appl. superconduct., vol.5, no.2, pp.2228-2231, 1995.
S. C. Shi, T. Noguchi, and J. Inatani, "A 100 GHz fixed-tuned waveguide SIS mixer exhibiting broad bandwidth and very low noise temperature", IEEE Trans. Appl. Superconduct., vol.7, no.4, pp.3850-3857, 1997.
W. H. Chang, "The inductance of a superconducting strip transmission line", J. Appl. Phys., vol.50, pp.8129-8134, 1979.
H. Ogawa, A. Mizuno, H. Ishikawa, Y. Fukui, and H. Hoko, "A 110 GHz SIS receiver for radio astronomy", Int. J. Infrared and Millimeter Waves, vol.11, no.6, pp.717-726, 1990.
D. P. Woody, R. E. Miller, and M. J. Wengler, "85-115 GHz Receivers for Radio Astronomy", IEEE Trans. on Microwave Theory Tech., vol.33, pp.90-95, 1985.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Asayama, S., Noguchi, T. & Ogawa, H. A Fixed-Tuned W-Band Waveguide SIS Mixer with 4.0-7.5 GHz IF. International Journal of Infrared and Millimeter Waves 24, 1091–1099 (2003). https://doi.org/10.1023/A:1024733232384
Issue Date:
DOI: https://doi.org/10.1023/A:1024733232384