Celiant Corporation Announces High Power Multi-Carrier Multi-Standard Power Amplifier.Business/Technology Editors CTIA (1) See CompTIA. (2) (Cellular Telecommunications & Internet Association, Washington, DC, www.ctia.org, www.wow-com.com) A membership organization founded in 1984 that is involved with regulatory and public affairs issues in the wireless industry. Wireless 2002 Booth No. 2558 ORLANDO, Fla.--(BUSINESS WIRE)--March 18, 2002 Celiant Corporation, the largest independent supplier of wireless power amplifiers in the world, today announced a 120-watt PCS (1) (Personal Communications Services) Refers to wireless services that emerged after the U.S. government auctioned commercial licenses in 1994 and 1995. This radio spectrum in the 1. band multi-carrier multi-standard power amplifier that uses RF digital predistortion and advanced feedforward feedforward /feed-for·ward/ (fed-for´ward) the anticipatory effect that one intermediate in a metabolic or endocrine control system exerts on another intermediate further along in the pathway; such effect may be positive or negative. techniques to achieve superior performance and efficiency. The power amplifier is being demonstrated here at the Cellular Telecommunications & Internet Association (CTIA) Wireless 2002 conference. This high power RF subsystem solution offers mixed-mode operation, flexibility and cost-effective migration plans for cell-sites being upgraded to a newer technology to meet growing capacity or coverage needs. This approach would allow savings in both capital expenditures and operational expenses for many cell sites, compared to the alternative of deploying new integrated base stations. Celiant was created in June 2001 as an independent venture, with most of its first employees coming from a Lucent Technologies (NYSE NYSE See: New York Stock Exchange : LU) Bell Labs R & D group and from a Lucent power amplifier group. Its base station RF subsystems products are backed by more than 300 patents and patents applications, and it has more than 1.3 million wireless power amps and modules in service worldwide. In February 2002 Celiant announced an agreement to be acquired by Andrew Corporation (NASDAQ NASDAQ in full National Association of Securities Dealers Automated Quotations U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on : ANDW), a market leader in the wireless infrastructure industry. The new multi-standard multi-carrier power amplifier (MCPA MCPA, MCP 2-methyl-4-chlorophenoxyacetic acid; a weedkiller reported to be nontoxic at the levels likely to be encountered on pasture, though it has killed cattle dosed experimentally with large single doses. ) is capable of amplifying any combination of North American standard radio signals within a 20MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc. instantaneous band, including cdmaOne, CDMA (Code Division Multiple Access) A method for transmitting simultaneous signals over a shared portion of the spectrum. The foremost application of CDMA is the digital cellular phone technology from QUALCOMM that operates in the 800 MHz band and 1.9 GHz PCS band. 2000, TDMA (Time Division Multiple Access) A satellite and cellular phone technology that interleaves multiple digital signals onto a single high-speed channel. For cellular, TDMA triples the capacity of the original analog method (FDMA). , GSM/EDGE and WCDMA (Wideband CDMA) A 3G high-speed digital data service provided by cellular carriers that use the TDMA or GSM technology worldwide, including AT&T (formerly Cingular) and T-Mobile in the U.S. . Early models of the amplifier have shown power efficiencies of 9 percent at 25 C. degrees. It operates at the frequency range of 1930 to 1990 MHz. "We expect the global merchant market for power amplifiers to grow more than 23 percent annually leading up to 2005, with the total power amplifier market approaching $3.4 billion by that year," said Ralph Faison, President and Chief Executive Officer of Celiant Corporation. "We plan to take share in that growing market, and this new amplifier is a good example of how our advanced digital predistortion technology gives us a significant performance advantage - especially in RF output power and efficiency -- over other companies," he said. The MCPA product is available for sale as an individual amplifier, or configured in a sub-rack of two or three amplifiers per sector, or in a cabinet with up to nine amplifiers for 3-sector operation. It measures only 18.9 inches (w) by 22.1 inches (d) by 5.2 inches (h). Celiant's portfolio of RF power amplifiers also includes models optimized for AMPS, TDMA, GSM and UMTS (Universal Mobile Telecommunications System) The GSM implementation of the 3G wireless phone system. Part of IMT-2000, UMTS provides service in the 2 GHz band and offers global roaming and personalized features. macrocell, microcell, and distributed base stations. About Celiant Corporation Headquartered in Warren, N.J., Celiant Corporation is a leader in power amplifiers and radio frequency (RF) subsystems for 2G and 3G wireless systems. The technical expertise of Celiant is unmatched in its field, and its products are based on more than 300 owned and licensed patents and patent applications, in power amplifier design, linearization In mathematics and its applications, linearization refers to finding the linear approximation to a function at a given point. In the study of dynamical systems, linearization is a method for assessing the local stability of an equilibrium point of a system of nonlinear differential algorithms, RF circuits, and digital signal processing See DSP. Digital Signal Processing - (DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled). technology. More than 1.3 million Celiant amplifiers and amplifier modules are already in use in thousands of base stations worldwide. Celiant recently announced it had agreed to be acquired by Andrew Corporation (NASDAQ: ANDW), and that transaction would create the market leader in wireless subsystem infrastructure products. For more information about Celiant, see its web site at www.Celiant.com or call 1-888-CELIANT (1-888-235-4268, x4730). Additional Technical Information Digital Predistortion Technique Results in Higher Efficiency Power Amplifiers Radio frequency power amplifiers increase the signal strength at the output of the amplifier but slightly distort the signal, producing noise in adjacent frequency bands. "Predisortion" is a technique used by Celiant Corporation to add the inverse of the expected noise signal into the input of the amplifier, canceling out almost all of the distortion in the final amplified signal. "Digital predistortion" provides an even more exact method of predistorting the signal before it is amplified, and can take into account the key distortion effects such as AM/AM (amplitude to amplitude modulation) and AM/PM AM/PM Amplitude Modulation/Phase Modulation AM/PM Ante Meridian/Post Meridian (amplitude to phase modulation) errors, as well as memory effects within the amplifier. Digital predistortion is a very flexible technique, leverages the learning curve associated with digital hardware, and provides the highest degree of correction of any predistortion approach. Celiant Corporation is the industry leader in using predistortion technology, and has filed numerous patent applications in the field. By providing more accurate signal correction, properly designed amplifiers can produce a higher output power for a given transistor size. In addition to allowing designers to reduce the total amplifier cost, digital predistortion has the added benefit of providing greater power and efficiency, with about 25 to 30 percent lower power dissipation. Note to Editors: To obtain a color photo of the high power amplifier, call Celiant at 908-546-4701. (c) 2002 Celiant Corporation. Celiant and the Celiant logo are trademarks of Celiant Corporation. |
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