1. Weidman, M. P., "Direct comparison transfer of microwave power sensor calibration," NIST Technical Note 1379, 1996.
2. Ginley, R., "A direct comparison system for measuring radio frequency power (100 kHz to 18 GHz)," Measure, Vol. 1, No. 4, 46-49, 2006.
3. Kang, T. W., J. H. Kim, J. Y. Kwon, et al. "Direct comparison technique using a transfer power standard with an adapter and its uncertainty," 2012 Conference on Precision Electromagnetic Measurements, 728-729, Washington DC, USA, 2012.
4. Shan, Y., Y. S. Meng, and Z. Lin, "Generic model and case studies of microwave power sensor calibration using direct comparison transfer," IEEE Transactions on Instrumentation and Measurement, Vol. 62, 2013, DOI:10.1109/TIM.2012.2225961.
5. Engen, G. F., "Amplitude stabilization of a microwave signal source," IRE Transactions on Microwave Theory and Techniques, Vol. 6, No. 2, 202-206, 1958.
doi:10.1109/TMTT.1958.1124538
6. Meng, Y. S., Y. Shan, and H. Neo, "Development of a waveguide microwave power sensor calibration system at NMC," 2012 Asia-Pacific Symposium on Electromagnetic Compatibility, 745-748, Singapore, 2012.
7. Yhland, K., J. Stenarson, and C. Wingqvist, "Power sensor lin-earity calibration with an unknown attenuator," 2010 Conference on Precision Electromagnetic Measurements, 769-770, Daejeon, Korea, 2010.
8. BIPM, IEC, IFCC, ILAC, ISO, et al. "Evaluation of measurement data --- Guide to the expression of uncertainty in measurement,", JCGM 100 : 2008 (GUM 1995 with minor corrections), Joint Committee for Guides in Metrology, 2008.
9. Pozar, D. M., Microwave Engineering, Addison-Wesley, 1993.
10. Fantom, A., Radio Frequency and Microwave Power Measurement, Peter Peregrinus Ltd., 1990.
doi:10.1049/PBEL007E
11. BIPM, IEC, IFCC, ILAC, ISO, et al. "Evaluation of measurement data --- Supplement 1 to the 'Guide to the expression of uncertainty in measurement' --- Propagation of distributions using a Monte Carlo method," JCGM 101 : 2008, Joint Committee for Guides in Metrology, 2008.
12. Meng, Y. S., Y. Shan, and H. Neo, "Evaluation of complex measurement uncertainty in polar coordinate for equivalent source reflection coefficient," 2012 Conference on Precision Electromagnetic Measurements, 116-117, Washington DC, USA, 2012.
13. Meng, Y. S. and Y. Shan, "Measurement uncertainty of complex-valued microwave quantities," Progress In Electromagnetics Research, Vol. 136, 421-433, 2013.
14. APLAC PT001 "Calibration interlaboratory comparisons,", Asia Pacific Laboratory Accreditation Cooperation-Pro¯ciency Testing Committee, 2008.