Koji Harada

Title: Koji Harada: Innovator in Phase Noise Extraction and Electric Circuit Measurement

Introduction

Koji Harada is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of electrical engineering, particularly in the areas of phase noise extraction and electric circuit measurement. With a total of 2 patents, his work has garnered attention for its innovative approaches and practical applications.

Latest Patents

One of Harada's latest patents is a "Phase noise extraction apparatus and technique." This invention focuses on extracting phase noise induced by a component of a transmitter from a radio frequency (RF) signal while attenuating noise from other sources. The RF signal is digitized, modulation is removed, and the carrier is suppressed to provide a noise signal that includes both the phase noise and the noise from other sources. A complementary autocorrelation operation is applied to this noise signal to effectively reduce the extraneous noise. The correlated signal is then transformed into the frequency domain to generate a power spectrum of the phase noise, which can be measured or displayed.

Another significant patent is the "Method and apparatus for measuring and designing electric circuit based on two-port network thereof, and computer-readable recording medium for recording the same." This invention provides a method for measuring circuit parameters by analyzing an electric circuit. It involves entering an equivalent circuit with specified element values, break points, and virtual grounds. A 2-port network is generated by disconnecting the electric path at the break point, allowing for the calculation of S-parameters and the open-loop transfer function of the electric circuit.

Career Highlights

Koji Harada is currently employed at Agilent Technologies, Inc., where he continues to develop innovative solutions in electrical engineering. His work at Agilent has allowed him to collaborate with other talented professionals in the field, enhancing the impact of his inventions.

Collaborations

One of his notable coworkers is Mitsuru Yokoyama, with whom he has likely shared insights and expertise in their respective projects.

Conclusion

Koji Harada's contributions to the fields of phase noise extraction and electric circuit measurement demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology and improving measurement techniques in electrical engineering.