No. of Recommendations: 6
I'm doing a little more DD on superconductor technology used as filters for wireless base stations.

High-temperature Superconducting materials

http://www.suptech.com/wireless/supertech.html

The technology is based on high temperature superconductor (HTS) materials. The industry uses the scientific measure of temperature called Kelvins. 0K is absolute zero, the total absence of heat.

HTS materials that superconduct over 77K can be cooled by liquid nitrogen a cheap and widely available method of cooling. In 1987 a HTS material called YBCO was discovered that superconducted in temperatures up to 90K.

SCON uses a HTS material called TBCCO which acts a superconductor up to 127K. SCON has an exclusive worldwide license for TBCCO from the University of Arkansas.

CDTS uses YBCO in their superconductors.

Stirling Cooling Systems

http://www.suptech.com/wireless/prodperf.html

SCON uses a cooling system that uses Helium Gas for both cooling and lubrication. The moving parts do not make contact with other parts, but instead float on a bearing of helium gas. This vastly reduces wear and tear. SCON filters are rated at 40,000 hours mean time between failures. SCON units are completely self-contained and require no maintenance.

Other cooling systems based on liquid nitrogen require oil or grease to lubricate moving parts. These systems require periodic maintenance.

SCON's Helium Gas based Stirling cryo-coolers also require far less power to drive them and are far more compact.

The maintenance free operation and very low power consumption of SCON products mean greatly reduced operating budgets for wireless base stations.

SCON's filters are compact rack-mount units which mean that more capacity can be packed into already crowded base station.

Advantages of HTS RF Filters in general

1) Increased capacity and reliability, up to 50% more users.

2) Reduces brain tumors <backspace> <backspace> ... *grin*. Handset battery savings. When the handset has a strong clear signal it automatically reduces the power used to communicate with the base station.


At the moment it is hard to find information on non-technical areas such as sales and production capabilities. I'll post information when I find it.

Mike
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