Kiyohiko Itoh

Title: Kiyohiko Itoh: Innovator in Antenna Technology

Introduction

Kiyohiko Itoh is a prominent inventor based in Sapporo, Japan. He has made significant contributions to the field of antenna technology, holding a total of 6 patents. His innovative designs focus on enhancing the performance and efficiency of antennas for various applications.

Latest Patents

One of his latest patents is a slot array antenna with cavities. This invention features a simple construction with multiple slots formed on a dielectric substrate. It is designed to provide excellent directional characteristics while minimizing inter-slot coupling. The slot array antenna includes a power supply line in the form of a micro-strip line on one surface of the dielectric substrate. The slot antenna portion has a plurality of slots arranged in an array-like fashion on the opposite surface, extending perpendicularly to the micro-strip line. Additionally, a reflector with a cavity is included, which optimizes the directionality of the antenna by cutting off specific radio wave frequencies.

Another notable invention is a small antenna designed for portable radios. This antenna consists of two planar conductive boards arranged in parallel at a small interval compared to the received radio wavelengths. A dielectric frame maintains the spacing between the boards. Arbitrary feeding points are selected along the edges of the conductive boards, allowing for flexibility in design. The positions of the conductors that short-circuit the boards can be adjusted to respond to the direction of incoming radio waves, enhancing performance.

Career Highlights

Kiyohiko Itoh has worked with Kokusai Electric Co., Ltd., where he applied his expertise in antenna technology. His work has significantly impacted the development of efficient communication devices.

Collaborations

Throughout his career, Kiyohiko has collaborated with notable individuals such as Katsumi Ushiyama and Sadafumi Sakamoto. These collaborations have contributed to the advancement of antenna technology and innovation.

Conclusion

Kiyohiko Itoh's contributions to antenna technology through his innovative patents demonstrate his expertise and commitment to enhancing communication systems. His work continues to influence the field and inspire future advancements.