fujikura news “tsunagu” technology new product news ... · development of lcx-mimo system using...

Development of LCX-MIMO System Using Two LCXs (Leaky Coaxial Cables)

TECHNO-FRONTIER 2015The 17th Thermal Engineering Exhibition

Fujikura is delighted to announce our participation in TECHNO-FRONTIER

2015 (The 17th Thermal Engineering Exhibition) on a theme, "Fujikura with

Thermal-tech Engineers".

We will be exhibiting and introducing a variety of thermal products including

supercomputer cooling modules.

We look forward to seeing you at our booth.

Ultra-thin heatpipe

Thermal Technology Division　　[email protected]

Power & Telecommunication System Strategy & Sales Engineering Division　　[email protected]

May 20 (Wed) - 22 (Fri), 2015 10:00 -18:00

Hall 6 (Fujikura booth 6E-117), Makuhari Messe

Dates and Times

VenueIn recent years, radio traffic volume has increased due to the spread of PDAs (personal digital assistants) including smartphones. Consequently, shortages of radio resources and the subsequent poor connections in busy places such as a downtown and a platform in a station occur more frequently than before. To solve the problems, Fujikura, Advanced Telecommunications Research Institute International (ATR), and Nara Institute of Science and Technology (NAIST) have been engaged in joint research to develop a MIMO (multiple input multiple output) system using two LCXs.

In the past, to achieve a MIMO system using two closely installed LCXs, these cables needed to be placed at a distance of about one wavelength from each other. For example, the distance between two LCXs needs to be12 cm for 2.4 GHz and 6 cm for 5 GHz at least. We optimized the propagation characteristics of the two LCXs and changed the propagation mode of electromagnetic waves between each LCX and the PDA. As a result, we have successfully developed a technology enabling a MIMO system with LCXs placed at a half or even closer distance of a wavelength. The testing was conducted in an RF anechoic chamber using the LCX-MIMO system and a commercially available 802.11n wireless LAN access point, verifying the availability of 2×2 MIMO. In the testing, throughput speeds over 65 Mbps, which are maximum theoretical figure when MIMO is in the nonoperational mode, were obtained. In the future, a 4×4 MIMO system will be available if the current technology of a 2×2 MIMO system using an LCX is combined with the new technology.

The research was conducted under Strategic Information and Communications R&D Promotion Programme (SCOPE 135007001) by the Ministry of Internal Affairs and Communications.

Throughput measuring equipment

Image of throughput measurement

PDA for measurement

Two closely installed LCXs

Access point orbase station

PDA

Example of throughput measurement value

Thro

ughp

ut(M

bps)

Maximum theoretical speed for one LCX

Distance(m)

Development of LCX-MIMO System Development of LCX-MIMO System Development of LCX-MIMO System Using Two LCXs

Tele-communi-cations

Exhibition 44

2015 No.405

Development of LCX-MIMO System Development of LCX-MIMO System Development of LCX-MIMO System Development of LCX-MIMO System

Fujikura News“Tsunagu” Technology New Product News

Fujikura News

Fujikura Ltd.1-5-1, Kiba, Koto-ku, Tokyo, Japan 135-8512TEL. +81（0）3 5606 1112　FAX. +81（0）3 5606 1501Issue : April 2015, No. 405 Editor in Chief : Hideyuki Hosoyahttp://www.fujikura.co.jp

Kansai Off iceSales Support & Branch Off ice Management DepartmentChubu Off iceTohoku Off iceKyushu Off ice

+81(0)6 6364 0373

+81(0)3 5606 1095+81(0)52 212 1880+81(0)22 266 3344+81(0)92 291 6126

2015

4

Development of Ion Filter for Large Accelerator

Fujikura Optical Fiber Fusion Splicer Honored with Global Fusion Splicers Customer Value Leadership Award by Frost & Sullivan

Fujikura has developed an ion filter as a core component of an detector to masure properties of subatomic particles. Since the use of the filter in a next-generation particle physics experiment using large particle accelerator was considered, we have been pursuing the development of the product in cooperation with research groups including Saga University and High Energy Accelerator Research Organization (KEK).

This hexagonal mesh filter is electrode foil consisting of an insulator, both sides of which are coated with copper, and high-density through holes. The aperture ratio of the mesh, which was about 40% before, has successfully achieved over 80% for the first time in the world by the application of Fujikura FPC techniques. This high-aperture-ratio foil allows effective separation of electrons and positive ions floating in the detector. As the result of the separation, the foil prevents the positional resolution from deteriorating, which has been a significant problem, due to floating of positive ions in the detector,.The research and development results were reported at an MPGD (micro-pattern gas detector) workshop held at Tohoku University in December last year and highly evaluated.

We will continue to develop products mountable into a detector of next-genaration experiment to live up to expectations of research institutes worldwide while contributing to society using our technologies in the field of medical devices .

* KEK Department of Advanced Accelerator Technologies website : http://rd.kek.jp/activity.html

Fig. 3 Separation of positive ions by ion filter

Fig. 1 External view of ion filter Fig. 2 Cross-sectional image of ion filter

Printed Circuit Board Division　　[email protected] Precision Equipment Division　　[email protected]

*1 Frost & Sullivanis a consulting firm, providing market research and analysis. The firm has more than 40 locations worldwide using its unique global network to cover market trends of 80 countries. Based on the firm's more than 50 year experience since the foundation in 1961, the firm supports clients as their partner so that they can accelerate their business growth and realize their visions.

*2 Global Customer Value Leadership Awardis given to companies that strategically work on enhancing the level of customer satisfaction and provide promising goods and services of high cost performance. The winner of the award was announced in the U.K. on February 10 after F&S analysts made the decision through comparison of vendors and research from various viewpoints for evaluation.

CopperPolyimide

30μm wide rim


Fujikura has received Global Fusion Splicers Customer Value Leadership Award from Frost & Sullivan, world famous for marketing research, for supplying optical fiber fusion splicers that win a high level of customer satisfaction. Fujikura optical fiber fusion splicers gained high recognition in terms of price competitiveness, after-sales service provided by the distributors worldwide, as well as high-quality and high-reliability through a comprehensive analysis.

Since the world's first marketing of the product in 1978, Fujikura, as a leading maker, has added a variety of features. They include high-quality, high-reliability, as matters of first priority, higher s p e e d s , r e d u c t i o n s i n s i z e a n d w e i g h t a n d environmental resistance. The 70 series of our current products has new, unique functions, for example, automatic open/close systems of the wind shield and the lid of the heater and a structure to withstand drop impact from any directions. We have established a distributor network to cover the world so that each distributor can sell the products and provide after-sales service consistently. We will continue to provide optical fiber fusion splicers that yield customer satisfaction as a major company in the market.

Not separated Not separatedFlow of positive ions

Flow of positive ions

Electric field inside through hole




Electro-nics

Fujikura News



Fujikura has developed an ion filter as a core component of an detector to masure properties of subatomic particles. Since the use of the filter in a next-generation particle physics experiment using large particle accelerator was considered, we have been pursuing the development of the product in cooperation with research groups including Saga University and High Energy Accelerator Research Organization (KEK).

This hexagonal mesh filter is electrode foil consisting of an insulator, both sides of which are coated with copper, and high-density through holes. The aperture ratio of the mesh, which was about 40% before, has successfully achieved over 80% for the first time in the world by the application of Fujikura FPC techniques. This high-aperture-ratio foil allows effective separation of electrons and positive ions floating in the detector. As the result of the separation, the foil prevents the positional resolution from deteriorating, which has been a significant problem, due to floating of positive ions in the detector,.The research and development results were reported at an MPGD (micro-pattern gas detector) workshop held at Tohoku University in December last year and highly evaluated.

We will continue to develop products mountable into a detector of next-genaration experiment to live up to expectations of research institutes worldwide while contributing to society using our technologies in the field of medical devices .

* KEK Department of Advanced Accelerator Technologies website : http://rd.kek.jp/activity.html

Fig. 3 Separation of positive ions by ion filter

Fig. 1 External view of ion filter Fig. 2 Cross-sectional image of ion filter

Printed Circuit Board Division　　[email protected] Precision Equipment Division　　[email protected]

*1 Frost & Sullivanis a consulting firm, providing market research and analysis. The firm has more than 40 locations worldwide using its unique global network to cover market trends of 80 countries. Based on the firm's more than 50 year experience since the foundation in 1961, the firm supports clients as their partner so that they can accelerate their business growth and realize their visions.

*2 Global Customer Value Leadership Awardis given to companies that strategically work on enhancing the level of customer satisfaction and provide promising goods and services of high cost performance. The winner of the award was announced in the U.K. on February 10 after F&S analysts made the decision through comparison of vendors and research from various viewpoints for evaluation.

CopperPolyimide

30μm wide rim


Fujikura has received Global Fusion Splicers Customer Value Leadership Award from Frost & Sullivan, world famous for marketing research, for supplying optical fiber fusion splicers that win a high level of customer satisfaction. Fujikura optical fiber fusion splicers gained high recognition in terms of price competitiveness, after-sales service provided by the distributors worldwide, as well as high-quality and high-reliability through a comprehensive analysis.

Since the world's first marketing of the product in 1978, Fujikura, as a leading maker, has added a variety of features. They include high-quality, high-reliability, as matters of first priority, higher s p e e d s , r e d u c t i o n s i n s i z e a n d w e i g h t a n d environmental resistance. The 70 series of our current products has new, unique functions, for example, automatic open/close systems of the wind shield and the lid of the heater and a structure to withstand drop impact from any directions. We have established a distributor network to cover the world so that each distributor can sell the products and provide after-sales service consistently. We will continue to provide optical fiber fusion splicers that yield customer satisfaction as a major company in the market.

Not separated Not separatedFlow of positive ions

Flow of positive ions





Electro-nics

Fujikura News

Development of LCX-MIMO System Using Two LCXs (Leaky Coaxial Cables)

TECHNO-FRONTIER 2015The 17th Thermal Engineering Exhibition

Fujikura is delighted to announce our participation in TECHNO-FRONTIER

2015 (The 17th Thermal Engineering Exhibition) on a theme, "Fujikura with

Thermal-tech Engineers".

We will be exhibiting and introducing a variety of thermal products including

supercomputer cooling modules.

We look forward to seeing you at our booth.

Ultra-thin heatpipe

Thermal Technology Division　　[email protected]

Power & Telecommunication System Strategy & Sales Engineering Division　　[email protected]

May 20 (Wed) - 22 (Fri), 2015 10:00 -18:00

Hall 6 (Fujikura booth 6E-117), Makuhari Messe

Dates and Times

Venue

Sample

In recent years, radio traffic volume has increased due to the spread of PDAs (personal digital assistants) including smartphones. Consequently, shortages of radio resources and the subsequent poor connections in busy places such as a downtown and a platform in a station occur more frequently than before. To solve the problems, Fujikura, Advanced Telecommunications Research Institute International (ATR), and Nara Institute of Science and Technology (NAIST) have been engaged in joint research to develop a MIMO (multiple input multiple output) system using two LCXs.

In the past, to achieve a MIMO system using two closely installed LCXs, these cables needed to be placed at a distance of about one wavelength from each other. For example, the distance between two LCXs needs to be12 cm for 2.4 GHz and 6 cm for 5 GHz at least. We optimized the propagation characteristics of the two LCXs and changed the propagation mode of electromagnetic waves between each LCX and the PDA. As a result, we have successfully developed a technology enabling a MIMO system with LCXs placed at a half or even closer distance of a wavelength. The testing was conducted in an RF anechoic chamber using the LCX-MIMO system and a commercially available 802.11n wireless LAN access point, verifying the availability of 2×2 MIMO. In the testing, throughput speeds over 65 Mbps, which are maximum theoretical figure when MIMO is in the nonoperational mode, were obtained. In the future, a 4×4 MIMO system will be available if the current technology of a 2×2 MIMO system using an LCX is combined with the new technology.

The research was conducted under Strategic Information and Communications R&D Promotion Programme (SCOPE 135007001) by the Ministry of Internal Affairs and Communications.

Throughput measuring equipment

Image of throughput measurement

PDA for measurement

Two closely installed LCXs

Access point orbase station

PDA

Example of throughput measurement value

Thro

ughp

ut(M

bps)

Maximum theoretical speed for one LCX

Distance(m)


Exhibition 4

2015 No.405Fujikura News

“Tsunagu” Technology New Product NewsFujikura News

Fujikura Ltd.1-5-1, Kiba, Koto-ku, Tokyo, Japan 135-8512TEL. +81（0）3 5606 1112　FAX. +81（0）3 5606 1501Issue : April 2015, No. 405 Editor in Chief : Hideyuki Hosoyahttp://www.fujikura.co.jp

Kansai Off iceSales Support & Branch Off ice Management DepartmentChubu Off iceTohoku Off iceKyushu Off ice

+81(0)6 6364 0373

+81(0)3 5606 1095+81(0)52 212 1880+81(0)22 266 3344+81(0)92 291 6126

2015

4

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