IMPATT Efficiency Extraction Using On-Chip Antenna Radiation


  • Talal Al-Attar Computer, Electrical and Mathematical Science & Engineering Division King Abdullah University of Science and Technology, Thuwal, Saudi Arabia


avalanche frequency, coplanar waveguide, high frequency, IMPATT diode, microstrip patch antenna, skin depth, surface roughness, transmission line


IMPATT diodes were designed and integrated with microstrip patch antenna on–chip in standard CMOS technology to extract the efficiency beyond avalanche frequency. By comparing the on-chip simulations and measurements of an IMPATT diode integrated in a CPW to an integrated one with a microstrip patch antenna at the same biasing conditions, the results demonstrated an efficiency ranging from ~ 0.01% to 0.016% without and with the added surface roughness losses, respectively. Such variation is strongly associated with the uncertainty provided by the increase of conduction losses ranging between 40%~80% beyond the avalanche frequency.


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T. Al-Attar and T. H. Lee, "Monolithic integrated millimeter-wave IMPATT transmitter in standard CMOS technology," IEEE Transactions on Microwave Theory and Techniques, vol. 53, pp. 3557-3561, 2005.

W. T. Read, Jr. “A proposed high-frequency negativeresistance diode,” Bell Syst. Tech. J., vol. 37, pp. 401- 446, Mar. 1958.

T. Al-Attar, M. D. Mulligan, and T. H. Lee, "Lateral IMPATT Diodes in Standard CMOS Technology," IEEE International Electron Devices Meeting, IEDM, Dec. 2004.

T. Al-Attar, “CMOS Diodes Operating Beyond Avalanche Grequency,” 12th International Symposium on Quality Electronic Design, pp. 1-6, 2011.

M. C. A. M. Koolen, J. A. M. Geelen, and M. P. J. G. Versleijen, “An Improved De-embedding Technique for On-wafer High Frequency Characterization,” Proceedings of the Bipolar Circuits and Technology Meeting, pp. 188-191, 1991.

T. Al-Attar, A. Alshehri, A. Almansouri, and A. Alturki, “Critical Parameters Affecting the Design of High Frequency Transmission Lines in Standard CMOS Technology,” Applied Computational Electromagnetics Society Symposium-Italy (ACES), pp. 1-2, Mar. 2017.

T. Al-Attar, “The Impact of Surface Roughness on Avalanche Frequency,” Applied Computational Electromagnetics Society Symposium (ACES), Apr. 2019.

W. Zhang, E. Kasper, and J. Schulze, “An 82-GHz 14.6-mW Output Power Silicon Impact Ionization Avalanche Transit Time Transmitter With Monolithically Integrated Coplanar Waveguide Patch Antenna,” IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 1, 2019.

P. J. Stabile and B. Lalevic, “Lateral IMPATT diodes,” IEEE Electron. Devices Letters, vol. 10, no. 6, June 1989.




How to Cite

Talal Al-Attar. (2020). IMPATT Efficiency Extraction Using On-Chip Antenna Radiation. The Applied Computational Electromagnetics Society Journal (ACES), 35(11), 1396–1397. Retrieved from