HTS filter subsystems for wireless telecommunications

Author

Willemsen, Balam A.

Author_Institution

Semicond.. Technol. Inc., Santa Barbara, CA, USA

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

60

Lastpage

67

Abstract

After many years of research and development, HTS filter subsystems for telecommunications are finally being manufactured in volume. Nearly 1,000 HTS filter subsystems are currently deployed worldwide with millions of hours of cumulative operation. An overview of the worldwide effort to commercialize HTS filter subsystems is presented. The essential technology elements required to manufacture HTS filter subsystems are discussed i.e., filters, cryogenic low-noise amplifiers, advanced cryopackaging, cryocoolers and control electronics. Currently sales of HTS filter subsystems are limited to existing analog and digital telephony networks. Planned third generation (3G) systems for wireless telephony and data communications require higher receiver performance to maintain high data rates with even lower-power handsets. The deployment of HTS filter subsystems in these 3G networks may be an excellent opportunity to achieve greater market penetration. Selected results of field trials of HTS filter subsystems are also presented

Keywords

UHF filters; cellular radio; cryogenics; high-temperature superconductors; reviews; superconducting filters; superconducting microwave devices; HTS filter subsystems; advanced cryopackaging; analog telephony networks; control electronics; cryocoolers; cryogenic low-noise amplifiers; digital telephony networks; field trials; high data rates; lower-power handsets; overview; receiver performance; third generation; wireless telecommunications; wireless telephony; Commercialization; Communication system control; Consumer electronics; Cryogenics; Filters; High temperature superconductors; Low-noise amplifiers; Manufacturing; Research and development; Telephony;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919285

Filename

919285