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公开(公告)号：JP2000349530A
公开(公告)日：2000-12-15
申请号：JP2000132833
申请日：2000-05-01
Applicant: LUCENT TECHNOLOGIES INC
Inventor： AIKEN RICHARD THOMAS , BENNING ROGER DAVID , SOLONDZ MAX AARON , ZIESSE NORMAN GERARD
Abstract: PROBLEM TO BE SOLVED: To provide an antenna system with high reliability that can enhance the performance of both up-link and down-link signals in a wireless communication system. SOLUTION: The antenna array system 10 has a 1st array 12 and a 2nd array 14 apart from the 1st array 12. The 1st array 12 is a transmission array for down-link transmission and the combination between the 1st array 12 and the 2nd array 14 forms a diversity configuration for up-link reception. The antenna system 10 has a proper number of antenna elements 31, 32 that are properly spatially arranged to maintain sufficient non-correlation in received signals (received by the 1st array 12 and the 2nd array 14) for coping with high-speed fading while avoiding the lobe definition problem. A signal to interference wave ratio (S/I) in the up-link and the down-link can all be enhanced by employing an adaptive radiation method in both the transmission and reception modes.
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公开(公告)号：JP2000151544A
公开(公告)日：2000-05-30
申请号：JP29312899
申请日：1999-10-15
Applicant: LUCENT TECHNOLOGIES INC
Inventor： HOJELL GARY M , ZIESSE NORMAN GERARD
IPC: H01Q21/24 , H01Q3/26 , H01Q15/00 , H01Q21/00 , H04B1/00 , H04B7/00 , H04B7/02 , H04B7/10 , H04B7/12 , H04J11/00 , H04Q7/30
Abstract: PROBLEM TO BE SOLVED: To make the number of necessary individual antenna packages in half and to achieve separation at an appropriate level between corresponding quadrature feeding ports by using a pair of cross polarization antennas instead of an individual vertically polarized wave antenna. SOLUTION: An antenna structure 10a uses a pair of double orthogonal antenna structural elements which are orthogonally crossed with each other and minimize signal interference during signal transmission. Two antenna structural elements excellently excite a cross polarization electric field component and arranges it in a relation of almost +45 deg./-45 deg.. An antenna element indicated by elements 16 and 18 is excellently packaged in one unit with the same phase as a center and this cross polarization antenna achieves separation at an appropriate level between corresponding quadrature feeding ports needed by a transmission system. Then, since independent carrier wave wave motion is transmitted from the antenna structure occupying a minimal space, it becomes easier to use half the number of the antennas.
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公开(公告)号：JP2002124841A
公开(公告)日：2002-04-26
申请号：JP2001253936
申请日：2001-08-24
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GHANADAN REZA , KONSTANTINOU KYRIAKI , PATEL MOHAN , TRIOLO ANTHONY A , ZIESSE NORMAN GERARD
Abstract: PROBLEM TO BE SOLVED: To provide a more effective structure of a power amplifier. SOLUTION: In a power amplifier system, a signal is adaptively distributed by the structure of an amplifier comprising amplifiers disposed in parallel. For example, the power amplifier system adjusts the operation of each amplifier within the structure of the amplifier, and for example, a power process function of the amplifier is decreased based on the information of a signal to be amplified by the structure of the amplifier, for example, a power level. By utilizing this adjusted operation of the amplifier, the power amplifier system uses a variable power divider for redistributing the input signal power to a plurality of amplifiers; and at least one variable coupler for combining an amplified signal from the amplifier in conformity to conditions when changing a division rate. Thus, the power amplifier system can be reconstituted corresponding to the change in order to improve the performance and/or efficiency.
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公开(公告)号：JP2002057520A
公开(公告)日：2002-02-22
申请号：JP2001207174
申请日：2001-07-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHANG LI-CHUNG , ZIESSE NORMAN GERARD
Abstract: PROBLEM TO BE SOLVED: To provide a feed for a phased array antenna having a low system loss, a wide operating bandwidth and low complexity. SOLUTION: In a modular feed (10) for the phased array antenna, the system efficiency and operating bandwidth of the modular feed are improved by combining the merits of a series type feed and a corporate type feed. Feed modules (40 and 50) having the power branch of one stage are used for feeding power to array modules (100, 200, 300 and 400) having a general series type feed configuration. The array modules are mutually exchangeable and the feed modules are mutually exchangeable so that production costs and the complexity of system can be reduced.
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5.发明专利
公开(公告)号：JP2000269723A
公开(公告)日：2000-09-29
申请号：JP2000023456
申请日：2000-02-01
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRABECK LAWRENCE M , HAMPEL KARL GEORG , MANKIEWICH PAUL MATTHEW , POLAKOS PAUL ANTHONY , RAJKUMAR AJAY , TRIOLO ANTHONY A , ZIESSE NORMAN GERARD
Abstract: PROBLEM TO BE SOLVED: To provide a method for adjusting the down-tilt angle of a radio communication system antenna. SOLUTION: Plural cells 1, 2, etc., include cell sites CS1, CS2, etc., respectively. A mobile switching center(MSC) 200 communicates with cell sites CS1, CS2, etc., and local switching networks. Each of cell sites CS1, CS2, etc., includes at least one electrically controllable antenna module, a support unit, a base station BS, and at least one down-tilt controller DC. The controllable antenna module is attached on the support unit. The base station BS communicates with MSC 200 by a high-frequency (RF) signal to/from the antenna module. The down-tilt controller DC communicates with the base station and the MSC 200 (more precisely MDCU 202) for controlling the down-tilt angle of the antenna module.
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Patent Agency Ranking
公开(公告)号：AU3024900A
公开(公告)日：2000-11-09
申请号：AU3024900
申请日：2000-05-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： AIKEN RICHARD THOMAS , BENNING ROGER DAVID , SOLONDZ MAX AARON , ZIESSE NORMAN GERARD
Abstract: An antenna array system (10) includes a first array (12) for operating in a transmit mode and a receive mode and a second array (14) spaced apart for operating in the receive mode. A receiver (18) adjusts a receive radiation pattern in the receive mode and provides a control signal for a transmit radiation pattern of the transmit mode.
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公开(公告)号：BR9903893A
公开(公告)日：2000-08-29
申请号：BR9903893
申请日：1999-08-26
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LAMOUREUX PHILIP , MATUSEVICH ALEX , MURPHY MYLES PATRICK , SOLONDZ MAX ASRON , ZIESSE NORMAN GERARD
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公开(公告)号：CA2254456A1
公开(公告)日：1999-06-18
申请号：CA2254456
申请日：1998-11-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ZIESSE NORMAN GERARD , MYER ROBERT EVAN , MONTGOMERY ROBERT KEITH , PATEL MOHAN , DONALDSON JIMMIE L
IPC: H03F3/60 , H03F1/32 , H03F1/42 , H04Q7/22 , H04Q7/24 , H04Q7/26 , H04Q7/30 , H03F3/189 , H04N5/067 , H03F3/20 , H04B1/62
Abstract: A modularly-partitioned feedforward multicarrier linear RF power amplifier is de scribed. The circuitry and components of the power amplifier are segregated into physical ly-separate modules in accordance with several criteria. In one embodiment, the power amplif ier is segregated into a RF power module, a linearizer module and a DC power supply mod ule. The RF power module includes power- and frequency- dependent components and generally v aries with the carrier frequency and output power requirements for a specific application. The linearizer module includes circuitry and components that are substantially power- and frequ ency-independent. As such, the linearizer module is substantially invariant and a single design ma y be used for virtually any application. The DC power supply module includes circuit and components that are substantially frequency independent but somewhat power power dependent. The DC power supply module may vary from amplifier to amplifier where there is a significant change in output power requirements.
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公开(公告)号：DE60112857T2
公开(公告)日：2006-06-08
申请号：DE60112857
申请日：2001-03-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GHANADAN REZA , KONSTANTINOU KYRIAKI , PATEL MOHAN , TRIOLO ANTHONY A , ZIESSE NORMAN GERARD
Abstract: A power amplifier system (40) uses adaptive distribution of signals through an amplifier architecture of parallel amplifier stages (26 a-d). For example, the power amplifier system can adjust the operation of individual amplifier stages in the amplifier arrangement, for example to reduce power handling capability of the amplifier stages based on information of the signal to be amplified by the amplifier arrangement, such as the power level. To take advantage of the adjusted operation of the amplifier stages, the power amplifier system uses a variable power divider (48) to reapportion the input signal power among the amplifier stages and at least one variable combiner (50) to adaptively combine amplified signals from the amplifier stages in changing proportions. As such, the power amplifier system is reconfigurable and/or can adapt to changing conditions to provide improved performance and/or efficiency.
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公开(公告)号：BR9905876A
公开(公告)日：2000-09-05
申请号：BR9905876
申请日：1999-10-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ZIESSE NORMAN GERARD
Abstract: A feedforward amplifier (40A) and an amplification method using the feedforward amplifier include an equalizer (48) positioned in series with a main amplifier (50) and/or a correction amplifier of the feedforward amplifier to compensate for a non-flat frequency response of the main amplifier and/or correction amplifier. The equalizer can be a voltage controllable equalizer adjustable under electronic controls to accommodate changing circuit conditions, or an equalizer with fixed parameters. These equalizers are selectively used according to the need and desired performance. The feedforward amplifier and the method separately perform the equalization function and the linearizing function of the feedforward amplifier to provide a cost effective and efficient feedforward amplifier and amplification method.
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