US5933112A
Expired / Lapsed
US
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Antenna array receiver and a method of correcting a phase shift amount of a receiving signal
Assignee: Panasonic Holdings Corp
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Filing: 1998-05-21
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Granted: 1999-08-03
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Expires: 2018-05-21
Abstract
Abstract First and second phase control amount tables output to first and second vector multiply circuits phase control signals Sc1 and Sc2 representative of corresponding phase shift amounts with gains represented by input gain control signals Sg1 and Sg2 as arguments. The first and second vector multiply circuits shift the phases of in-phase components S13 and S23 and quadrature components S14 and S24 of an antenna 2 in opposite directions in accordance with the phase control signals Sc1 and Sc2. Consequently, the amount of phase shift caused by receiving amplifiers is corrected so that the phase difference at antenna terminals between the input signals to the antennas is maintained.
Inventors
- 👤 Katsuhiko Hiramatsu
- 👤 Kazuyuki Miya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:52
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/2605
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
97 words
An antenna array receiver, comprising: a plurality of antenna elements forming an antenna array; receiving amplifiers, respectively connected to said plurality of antenna elements, that amplify receiving signals from said plurality of antenna elements; phase control amount deciding means for determining phase control amounts of said receiving signals corresponding to gains of said receiving amplifiers, based on gain versus phase shift amount characteristics of said receiving amplifiers; and phase shift amount correcting means for correcting phase shift amounts of said receiving signals by use of the phase control amounts determined by said phase control amount deciding means.
Claim 2
Dependent Claim
97 words
An antenna array receiver, comprising: a plurality of antenna elements forming an antenna array; receiving amplifiers, respectively connected to said plurality of antenna elements, that amplify receiving signals from said plurality of antenna elements; phase control amount deciding means for determining phase control amounts of said receiving signals corresponding to gains of said receiving amplifiers, based on gain versus phase shift amount characteristics of said receiving amplifiers; and phase shift amount correcting means for correcting phase shift amounts of said receiving signals by use of the phase control amounts determined by said phase control amount deciding means.
Claim 3
Dependent Claim
23 words
The receiver of claim 1, further comprising: means for supplying gain data of said receiving amplifiers to said phase control amount deciding device.
Claim 4
Dependent Claim
23 words
The receiver of claim 2, wherein said gain data supplying means comprises a gain controller that controls said gains of said receiving amplifiers.
Claim 5
Dependent Claim
32 words
The receiver of claim 1, wherein said phase shift amount deciding means obtains the gains of said receiving amplifiers from a gain controlling means for controlling the gain of said receiving amplifiers.
Claim 6
Dependent Claim
26 words
The receiver of claim 1, wherein said phase control amount deciding means has gain versus phase shift amount characteristics with respect to each frequency in use.
Claim 7
Dependent Claim
26 words
The receiver of claim 1, wherein said phase control amount deciding means has gain versus phase shift amount characteristics with respect to each receiving amplifier temperature.
Claim 8
Dependent Claim
34 words
The receiver of claim 1, wherein said phase control amount deciding means has gain versus phase shift amount characteristics of said receiving amplifiers with respect to each frequency and receiving amplifier temperature in use.
Claim 9
Dependent Claim
57 words
The receiver of claim 1, wherein said phase control amount deciding means has a table that holds phase control amounts corresponding to gains of said receiving amplifiers, said phase shift amount correcting means having a vector multiply circuit that phase-shifts receiving signals in accordance with phase control amounts obtained from said table and outputs said phase-shifted signals.
Claim 10
Dependent Claim
49 words
The receiver of claim 1, wherein said phase control amount deciding means comprises means for calculating, from two previously stored gain versus phase shift amount characteristic values, a gain versus phase shift amount characteristic value which is between said two previously stored gain versus phase shift amount characteristic values.
Claim 11
Dependent Claim
53 words
The receiver of claim 1, wherein said phase control amount deciding means comprises means for correcting decided phase control amounts based on differences in phase shift amounts between receiving signals due to differences in path length from said plurality of antenna elements to an input terminal of said phase shift amount correcting means.
Claim 12
Dependent Claim
12 words
A base station comprising the antenna array receiver according to claim 4.
Claim 13
Dependent Claim
12 words
A mobile station comprising the antenna array receiver according to claim 1.
Claim 14
Independent Claim
76 words
A method of correcting a phase shift amount of a receiving signal, comprising: obtaining gains of receiving amplifiers that amplify receiving signals from a plurality of antenna element forming an antenna array; determining phase control amounts of the received signals corresponding to the gains of the receiving amplifiers, based on gain versus phase shift amount characteristics of the receiving amplifiers; and correcting a phase shift amount of the received signals using the determined phase control amounts.
Claim 15
Independent Claim
76 words
A method of correcting a phase shift amount of a receiving signal, comprising: obtaining gains of receiving amplifiers that amplify receiving signals from a plurality of antenna element forming an antenna array; determining phase control amounts of the received signals corresponding to the gains of the receiving amplifiers, based on gain versus phase shift amount characteristics of the receiving amplifiers; and correcting a phase shift amount of the received signals using the determined phase control amounts.
Claim 16
Dependent Claim
25 words
The method of claim 13, wherein the gains of the receiving amplifiers are obtained by controlling the gains of the receiving amplifiers with gain controllers.
Claim 17
Dependent Claim
30 words
The method of claim 13, wherein phase control amounts of the received signals are determined with respect to each frequency in use based on gain versus phase shift amount characteristics.
Claim 18
Dependent Claim
30 words
The method of claim 13, wherein phase control amounts of the received signals are determined based on gain versus phase shift amount characteristics with respect to each receiving amplifier temperature.
Claim 19
Dependent Claim
34 words
The method of claim 13, wherein phase control amounts of the received signals are determined based on gain versus phase shift amount characteristics with respect to each frequency and receiving amplifier temperature in use.
Claim 20
Dependent Claim
57 words
The method of claim 13, wherein phase control amounts of the received signals are determined based on gain versus phase shift amount characteristic values calculated from two previously stored gain versus phase shift amount characteristic values, the gain versus phase shift amount characteristic values being between the two previously stored gain versus phase shift amount characteristic values.
Claim 21
Dependent Claim
29 words
The method of claim 13, wherein the decided phase control amounts are corrected based on differences in phase shift amounts between received signals due to differences in path length.
Claim 22
Dependent Claim
91 words
An antenna array receiver, comprising: a plurality of antenna elements that form an antenna array; receiving amplifiers, respectively connected to the plurality of antenna elements, for amplifying signals received by said plurality of antenna elements; phase control amount deciding means for determining phase control amounts of said received signals corresponding to gains of said receiving amplifiers, based on gain versus phase shift amount characteristics of said receiving amplifiers; and phase shift amount correcting means for correcting phase shift amounts of said received signals based on offset control information of a frequency.
Claim 23
Dependent Claim
91 words
An antenna array receiver, comprising: a plurality of antenna elements that form an antenna array; receiving amplifiers, respectively connected to the plurality of antenna elements, for amplifying signals received by said plurality of antenna elements; phase control amount deciding means for determining phase control amounts of said received signals corresponding to gains of said receiving amplifiers, based on gain versus phase shift amount characteristics of said receiving amplifiers; and phase shift amount correcting means for correcting phase shift amounts of said received signals based on offset control information of a frequency.
Claim 24
Dependent Claim
114 words
An antenna array receiver, comprising: a plurality of antenna elements that form an antenna array; receiving amplifiers, respectively connected to said plurality of antenna elements, that amplify signals received by said plurality of antenna elements; phase control amount deciding means for determining phase control amounts of said received signals corresponding to gains of said receiving amplifiers, based on gain versus phase shift amount characteristics of said receiving amplifiers; frequency offset controlling means for outputting a frequency offset correction value, based on said determined phase control amount and a frequency offset signal; and phase shift amount correcting means for correcting phase shift amounts of said received signals in accordance with said frequency offset correction value.
Claim 25
Dependent Claim
114 words
An antenna array receiver, comprising: a plurality of antenna elements that form an antenna array; receiving amplifiers, respectively connected to said plurality of antenna elements, that amplify signals received by said plurality of antenna elements; phase control amount deciding means for determining phase control amounts of said received signals corresponding to gains of said receiving amplifiers, based on gain versus phase shift amount characteristics of said receiving amplifiers; frequency offset controlling means for outputting a frequency offset correction value, based on said determined phase control amount and a frequency offset signal; and phase shift amount correcting means for correcting phase shift amounts of said received signals in accordance with said frequency offset correction value.
Claim 26
Dependent Claim
23 words
The receiver of claim 21, further comprising: means for supplying gain data of said receiving amplifiers to said phase control amount deciding device.
Claim 27
Dependent Claim
23 words
The receiver of claim 22, wherein said gain data supplying means comprises a gain controller that controls said gains of said receiving amplifiers.
Claim 28
Dependent Claim
69 words
The receiver of claim 21, wherein said frequency offset controlling means comprises a table that holds said frequency offset correction value corresponding to a phase shift amount integration value, integrates said determined phase control amounts and said frequency offset signal to calculate said phase shift amount integration values, and outputs said frequency offset correction values corresponding to said calculated phase shift amount integration values in accordance with said table.
Claim 29
Independent Claim
95 words
A method for correcting a phase shift amount of a received signal, comprising: obtaining gains of receiving amplifiers that amplify signals received from a plurality of antenna elements that form an antenna array; determining phase control amounts of said received signals corresponding to gains of said receiving amplifiers, based on gain versus phase shift amount characteristics of the receiving amplifiers; outputting a frequency offset correction value, based on said determined phase control amounts and a frequency offset signal; and correcting phase shift amounts of said received signals in accordance with said frequency offset correction values.
Claim 30
Independent Claim
95 words
A method for correcting a phase shift amount of a received signal, comprising: obtaining gains of receiving amplifiers that amplify signals received from a plurality of antenna elements that form an antenna array; determining phase control amounts of said received signals corresponding to gains of said receiving amplifiers, based on gain versus phase shift amount characteristics of the receiving amplifiers; outputting a frequency offset correction value, based on said determined phase control amounts and a frequency offset signal; and correcting phase shift amounts of said received signals in accordance with said frequency offset correction values.
Claim 31
Dependent Claim
42 words
The method of claim 25, wherein said determined phase control amounts and said frequency offset signal are integrated to calculate phase shift amount integration values, and said frequency offset correction values corresponding to said calculated phase shift amount integration values are output.
Claim 32
Dependent Claim
76 words
An antenna array receiver, comprising: a plurality of antenna elements forming an array antenna; receiving amplifiers, respectively connected to said plurality of antenna elements, that amplify signals received by said plurality of antenna elements; gain data supplying means, connected to said receiving amplifiers, for supplying gain data of said receiving amplifiers; and phase shift amount correcting means for correcting phase shift amounts of said receiving signals, based on gain data from said gain data supplying means.
Claim 33
Dependent Claim
76 words
An antenna array receiver, comprising: a plurality of antenna elements forming an array antenna; receiving amplifiers, respectively connected to said plurality of antenna elements, that amplify signals received by said plurality of antenna elements; gain data supplying means, connected to said receiving amplifiers, for supplying gain data of said receiving amplifiers; and phase shift amount correcting means for correcting phase shift amounts of said receiving signals, based on gain data from said gain data supplying means.
Claim 34
Dependent Claim
23 words
The receiver of claim 27, wherein said gain data supplying means comprises a gain controller that controls said gains of said receiving amplifiers.
Claim 35
Dependent Claim
26 words
The receiver of claim 27, wherein said phase control amount deciding means has gain versus phase shift amount characteristics with respect to each frequency in use.
Claim 36
Dependent Claim
26 words
The receiver of claim 27, wherein said phase control amount deciding means has gain versus phase shift amount characteristics with respect to each receiving amplifier temperature.
Claim 37
Dependent Claim
34 words
The receiver of claim 27, wherein said phase control amount deciding means has gain versus phase shift amount characteristics of said receiving amplifiers with respect to each frequency and receiving amplifier temperature in use.
Claim 38
Dependent Claim
57 words
The receiver of claim 27, wherein said phase control amount deciding means has a table that holds phase control amounts corresponding to gains of said receiving amplifiers, said phase shift amount correcting means having a vector multiply circuit that phase-shifts receiving signals in accordance with phase control amounts obtained from said table and outputs said phase-shifted signals.
Claim 39
Dependent Claim
49 words
The receiver of claim 27, wherein said phase control amount means device comprises means for calculating, from two previously stored gain versus phase shift amount characteristic values, a gain versus phase shift amount characteristic value which is between said two previously stored gain versus phase shift amount characteristic values.
Claim 40
Dependent Claim
53 words
The receiver of claim 27, wherein said phase control amount deciding means comprises means for correcting decided phase control amounts based on differences in phase shift amounts between receiving signals due to differences in path length from said plurality of antenna elements to an input terminal of said phase shift amount correcting means.
References Cited (Backward Citations)
US5412414A
Cited
US5666124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-08-02 | 2003-02-01 | 2003-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-02 | 2007-02-01 | 2007-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-02 | 2011-02-01 | 2011-08-03 | $7700.00 | Window Closed / Lapsed |