21 Sep 2012   |   9:00 am - 12:00 pm,   NMC meeting room, Level 2, TÜV SÜD PSB Building, 1 Science Park Drive, Singapore 118221

Seminar on Current Metrology Research and Applications at RF, Microwave, Millimetre-wave and Sub-millimetre-wave Frequencies in National Metrology Institute of Japan (NMIJ)


The National Metrology Institute of Japan (NMIJ), the National Institute of Advanced Industrial Science and Technology (AIST), Japan, has a long history in research and development of high frequency metrology standards.  In this seminar, the research and development activities in high frequency power standard and scattering parameter (S-parameter) standards will be covered.

For the national metrology power standard – calorimeter, Dr Kazuhiro Shimaoka will briefly present the recent study on dry-loaded calorimeters for WR-10 and WR-15 rectangular waveguides (50 GHz to 110 GHz), and give a short report on the current research on WR-6 rectangular waveguide calorimeters (110 GHz to 170 GHz). Techniques in mm-wave power meter calibration will be also discussed. Focus points are a thermal feedback system (TFS) that enables very fast and stable calorimetric measurement, and the evaluation of equivalence error of DC-RF substitution. The TFS reduces the typical reading time per frequency to less than 10 min, and the minimum measurable incident RF power is 0.2 mW. A new technique for reducing the equivalence error (EE) by utilizing a flat mm-wave absorber is also discussed for the WR-10 and WR-15 rectangular waveguides calorimeters. The recent work in NMIJ on WR-6 rectangular waveguides calorimeters will be also presented.

NMIJ has launched the development of microwave scattering parameter (S-parameter) standards and their evaluation technologies since 2002. Dr Masahiro Horibe will briefly present the past highlights and give an overview of the current NMIJ’s research activity on S-parameter at RF, microwave, millimetre-wave and sub-millimetre-wave (terahertz) frequencies. The latest research works in NMIJ on techniques for permittivity measurements and on-wafer measurements are just launched. The recent work achievement in NMIJ on a VNA measurement technique in waveguide transmission lines at terahertz will be presented.

About the Speaker

K_ShimaokaDr Kazuhiro Shimaoka received his B.E. degree in mathematical science from Osaka Prefecture University, Sakai, Japan, in 1989 and his Ph.D. degree in quantum engineering from Nagoya University, Nagoya, Japan, in 2001.
  He was with Sanyo Electric Co., Ltd. in 1989. In 2002, he joined the National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan, where he is currently a Senior Researcher and the calibration authority of radio frequency power and voltage standards. He is also a Technical Advisor to the Radio Frequency and Electromagnetic Field Subcommittee of the Japanese Calibration Service System Committee, which is organized by the International Accreditation Japan.

  Dr. Shimaoka is a member of the Japan Society of Applied Physics.

Masahiro HoribeDr. Masahiro Horibe received his Ph.D. degree in Quantum Engineering from Nagoya University in 2001. He received a Japan Society for the Promotion of Science Postdoctoral Fellowship during 1999-2001. During 2001-2003, he worked on the research of high-temperature oxide superconductor applications in Fujitsu Laboratories Ltd. and Superconductivity Research Laboratory, Japan. In 2003, he worked on carbon - nanotube applications in Fujitsu Laboratories Ltd.. He is now with the NMIJ-AIST, Tsukuba, Japan. He works on the research and development of the metrology standards of scattering parameters for coaxial, waveguide and on-wafer transmission lines in RF, microwave, millimetre-wave and sub-millimeter-wave frequencies. Recently Masahiro’s research is also focused on permittivity measurements for materials.

Dr. Horibe is a member of IEEE MTT-11 “Microwave Measurement” technical committee as an Asian - region, the standardization activities (IEC TC46, IEEE P1785 and IEEE P287), the URSI Commission A, the IEEJ Research Committee on Millimeter-Wave Engineering and Science and the Microwave Workshop Exhibition (MWE2012) committee. He is also the ISO/IEC 17025 assessor for the International Accreditation Japan (IA-Japan).

Who Should Attend

Senior management, researchers, scientists, engineers and technologist in the industry, research organizations and universities who deal with RF, microwave, and millimetre wave measurements in their work and R&D. Students in science and engineering, especially those in high frequency science and engineering will find the talk educational and enlightening.


9:00 a.m.    Registration  
9:15 a.m.    Presentation by Dr Kazuhiro Shimaoka on Current High Frequency Power Metrology Research at NMIJ
10:15 a.m.  Presentation by Dr Masahiro Horibe on Scattering Parameter measurement standards and techniques for Vector Network Analysis
11:15 a.m.   Q&A                
12:00 noon   End of programme


Registration is non-chargeable. As the number of seats is limited, registration is done on a first-come first-served basis. To register, please reply to reply to Ms Awi Nor Muliaty (email: and cc to Dr Shan Yueyan (email: with the following information: