Patent US5771449A successfully refreshed from Google Patents.
US5771449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectorized multi-function communication system
Assignee: Endwave Corp
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Filing: 1995-08-25
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Granted: 1998-06-23
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Expires: 2015-08-25
Abstract
Abstract The preferred embodiment of the present invention is a communications apparatus which includes a first transmitting antenna array (15A) having a transmitting antenna (16) which is dedicated to serves only a first sector (12). Similarly, a second transmitting antenna array (17A) having a transmitting antenna (18) is dedicated to serve only a second sector (14). Each of the transmitting antenna arrays (15A, 17A) have a beamwidth (19) of generally less than fifteen degrees. Both the first and the second transmitting antenna arrays (15A, 17A) emanate shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors.
Inventors
- 👤 Raymond R. Blasing
- 👤 Clifford A. Mohwinkel
- 👤 Douglas G. Lockie
- 👤 Paul Likins
- 👤 Edward A. Keible
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:48
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/24; H04W16/28; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/246; H01Q21/00; H01Q21/06; H01Q21/061; H01Q21/065; H01Q21/28; H01Q3/00; H01Q3/26; H01Q3/2605; H04H; H04H60/00; H04H60/35; H04H60/49; H04N; H04N21/00; H04N21/20; H04N21/23; H04N21/238; H04N21/2383; H04N21/40; H04N21/43; H04N21/438; H04N21/4382; H04N21/60; H04N21/61; H04N21/6106; H04N21/6131; H04N21/6156; H04N21/6181; H04N7/00; H04N7/16; H04N7/173; H04N7/17309; H04N7/20; H04H20/00; H04H20/02; H04H20/06; H04H20/65; H04H20/71; H04H20/72; H04H60/09; H04H60/14; H04H60/23; H04H60/76; H04H60/81; H04H60/90; H04H60/91; H04W84/00; H04W84/02; H04W84/10; H04W84/14
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
296 words
A high-bandwidth communications apparatus for offering communications to fixed sites comprising: a cell (11); said cell (11) including a first sector (12) and a second sector (14); a first transmitting antenna array (15A); said first transmitting antenna array (15A) including a first transmitting antenna (16); said first transmitting antenna array (15A) being dedicated to serve only said first sector (12); a second transmitting antenna array (17A); said second transmitting antenna array (17A) including a second transmitting antenna (18); said second transmitting antenna array (17A) being dedicated to serve only said second sector (14); said first and said second transmitting antenna arrays (15A, 17A) each having a beamwidth (19) of a maximum of fifteen degrees; a first receiver (20); said first receiver (20) being located within said first sector (12); said first receiver (20) being capable of receiving a first signal from said first transmitting antenna array (15A); a second receiver (22); said second receiver (22) being located within said second sector (14); said second receiver (22) being capable of receiving a second signal from said second transmitting antenna array (17A); said first and said second signals being capable of being different; said first receiver (20) being capable of receiving only from said first transmitting antenna array (15A) which is dedicated to serve only said first sector (12); said second receiver (22) being capable of receiving only from said second transmitting antenna array (17A) which is dedicated to serve only said second sector (14); both of said first and said second transmitting antenna arrays (15A, 17A) for forming shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors; and both of said first and said second transmitting antenna (16, 18) being low sidelobe antennas to reduce the sidelobe in adjacent sectors.
Claim 2
Dependent Claim
296 words
A high-bandwidth communications apparatus for offering communications to fixed sites comprising: a cell (11); said cell (11) including a first sector (12) and a second sector (14); a first transmitting antenna array (15A); said first transmitting antenna array (15A) including a first transmitting antenna (16); said first transmitting antenna array (15A) being dedicated to serve only said first sector (12); a second transmitting antenna array (17A); said second transmitting antenna array (17A) including a second transmitting antenna (18); said second transmitting antenna array (17A) being dedicated to serve only said second sector (14); said first and said second transmitting antenna arrays (15A, 17A) each having a beamwidth (19) of a maximum of fifteen degrees; a first receiver (20); said first receiver (20) being located within said first sector (12); said first receiver (20) being capable of receiving a first signal from said first transmitting antenna array (15A); a second receiver (22); said second receiver (22) being located within said second sector (14); said second receiver (22) being capable of receiving a second signal from said second transmitting antenna array (17A); said first and said second signals being capable of being different; said first receiver (20) being capable of receiving only from said first transmitting antenna array (15A) which is dedicated to serve only said first sector (12); said second receiver (22) being capable of receiving only from said second transmitting antenna array (17A) which is dedicated to serve only said second sector (14); both of said first and said second transmitting antenna arrays (15A, 17A) for forming shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors; and both of said first and said second transmitting antenna (16, 18) being low sidelobe antennas to reduce the sidelobe in adjacent sectors.
Claim 3
Dependent Claim
25 words
An apparatus as claimed in claim 1, in which: said first and said second transmitting antenna arrays (15A, 17A) are planar antenna arrays (47, 50).
Claim 4
Dependent Claim
75 words
An apparatus as claimed in claim 2, in which: power is distributed to said planar antenna arrays (47, 50) so that the centermost elements in said planar antenna arrays (47, 50) radiate more power than elements at the periphery of said planar antenna arrays (47, 50) so that the first sidelobe exposed to the one over adjacent sector is substantially lower resulting in a lower level of unwanted energy in the one over adjacent sector.
Claim 5
Dependent Claim
98 words
An apparatus as claimed in claim 1, further comprising: a controller (32); said controller (32) being coupled to said transmitting antenna arrays (15A, 17A); a first customer interface unit (44) being coupled to said first receiver (20); and a second customer interface unit (44) being coupled to said second receiver (22); both said first and said second customer interface units (44) for receiving a code from said transmitting antenna array which informs said first and said second customer interface units (44) about a scrambling pattern that will be issued by said controller (32) which enables encryption and decryption.
Claim 6
Dependent Claim
34 words
An apparatus as claimed in claim 1, in which said first and said second receivers (20, 22) are used to process orthogonally polarized signals in which one polarity is predominant to perform active cancellation.
Claim 7
Dependent Claim
193 words
A high-bandwidth communications apparatus for offering communications to fixed sites comprising: a cell (11); said cell (11) including a plurality of sectors (12, 14); a first transmitting antenna array (15A); said first transmitting antenna array (15A) including a transmitting antenna (16); said first transmitting antenna array (15A) being dedicated to serve only one of said sectors (12, 14); a second transmitting antenna array (17A); said second transmitting antenna array (17A) including a transmitting antenna (18); each of said transmitting antenna arrays (15A, 17A) each having a beamwidth (19) of a maximum of fifteen degrees; a plurality of receivers (20, 22); each of said plurality of receivers (20, 22) being located within one of said plurality of sectors (12, 14); each of said plurality of receivers (20, 22) for receiving only from one of said transmitting antenna arrays (15A, 17A); and both of said first and said second transmitting antenna arrays (15A, 17A) for forming shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors; and both of said first and said second transmitting antennas (16, 18) being low sidelobe antennas to reduce the sidelobe in adjacent sectors.
Claim 8
Dependent Claim
193 words
A high-bandwidth communications apparatus for offering communications to fixed sites comprising: a cell (11); said cell (11) including a plurality of sectors (12, 14); a first transmitting antenna array (15A); said first transmitting antenna array (15A) including a transmitting antenna (16); said first transmitting antenna array (15A) being dedicated to serve only one of said sectors (12, 14); a second transmitting antenna array (17A); said second transmitting antenna array (17A) including a transmitting antenna (18); each of said transmitting antenna arrays (15A, 17A) each having a beamwidth (19) of a maximum of fifteen degrees; a plurality of receivers (20, 22); each of said plurality of receivers (20, 22) being located within one of said plurality of sectors (12, 14); each of said plurality of receivers (20, 22) for receiving only from one of said transmitting antenna arrays (15A, 17A); and both of said first and said second transmitting antenna arrays (15A, 17A) for forming shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors; and both of said first and said second transmitting antennas (16, 18) being low sidelobe antennas to reduce the sidelobe in adjacent sectors.
Claim 9
Dependent Claim
25 words
An apparatus as claimed in claim 6, in which: said first and said second transmitting antenna arrays (15A, 17A) are planar antenna arrays (47, 50).
Claim 10
Dependent Claim
75 words
An apparatus as claimed in claim 7, in which: power is distributed to said planar antenna arrays (47, 50) so that the centermost elements in said planar antenna arrays (47, 50) radiate more power than elements at the periphery of said planar antenna arrays (47, 50) so that the first sidelobe exposed to the one over adjacent sector is substantially lower resulting in a lower level of unwanted energy in the one over adjacent sector.
Claim 11
Dependent Claim
98 words
An apparatus as claimed in claim 6, further comprising: a controller (32); said controller (32) being coupled to said transmitting antenna arrays (15A, 17A); a first customer interface unit (44) being coupled to said first receiver (20); and a second customer interface unit (44) being coupled to said second receiver (22); both said first and said second customer interface units (44) for receiving a code from said transmitting antenna array which informs said first and said second customer interface units (44) about a scrambling pattern that will be issued by said controller (32) which enables encryption and decryption.
Claim 12
Dependent Claim
283 words
A high-bandwidth communications apparatus for offering communications to fixed sites comprising: a cell (11); said cell (11) including a first sector (12) and a second sector (14); a first transmitting and receiving antenna array (15B); said first transmitting and receiving antenna array (15B) including a first transmitting antenna (24T) and a first receiving antenna (24R); said first transmitting antenna (24T) and said first receiving antenna (24R) being dedicated to serve only said first sector (12); a second transmitting and receiving antenna array (17B); said second transmitting and receiving antenna array (17B) including a second transmitting antenna (26T) and a second receiving antenna (26R); said second transmitting antenna (26T) and said second receiving antenna (26R) being dedicated to serve only said second sector (14); said first and said second transmitting and receiving antenna arrays (15B, 17B) each having a beamwidth (19) of a maximum of fifteen degrees; a first transceiver (28); said first transceiver (28) being located within said first sector (12); a second receiver (22); said second receiver (22) being located within said second sector (14); said first receiver (20) for receiving only from said first transmitting and receiving antenna array (15B) which is dedicated to serve only said first sector (12); said second receiver (22) for receiving only from said second transmitting and receiving antenna array (17B) which is dedicated to serve only said second sector (14); both of said first and said second transmitting and receiving antenna arrays (15B, 17B) for forming shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors; and both of said first and said second transmitting antennas (16, 18) being low sidelobe antennas to reduce the sidelobe in adjacent sectors.
Claim 13
Dependent Claim
283 words
A high-bandwidth communications apparatus for offering communications to fixed sites comprising: a cell (11); said cell (11) including a first sector (12) and a second sector (14); a first transmitting and receiving antenna array (15B); said first transmitting and receiving antenna array (15B) including a first transmitting antenna (24T) and a first receiving antenna (24R); said first transmitting antenna (24T) and said first receiving antenna (24R) being dedicated to serve only said first sector (12); a second transmitting and receiving antenna array (17B); said second transmitting and receiving antenna array (17B) including a second transmitting antenna (26T) and a second receiving antenna (26R); said second transmitting antenna (26T) and said second receiving antenna (26R) being dedicated to serve only said second sector (14); said first and said second transmitting and receiving antenna arrays (15B, 17B) each having a beamwidth (19) of a maximum of fifteen degrees; a first transceiver (28); said first transceiver (28) being located within said first sector (12); a second receiver (22); said second receiver (22) being located within said second sector (14); said first receiver (20) for receiving only from said first transmitting and receiving antenna array (15B) which is dedicated to serve only said first sector (12); said second receiver (22) for receiving only from said second transmitting and receiving antenna array (17B) which is dedicated to serve only said second sector (14); both of said first and said second transmitting and receiving antenna arrays (15B, 17B) for forming shaped beams which are alternately polarized to ensure the isolation of beams that serve adjacent sectors; and both of said first and said second transmitting antennas (16, 18) being low sidelobe antennas to reduce the sidelobe in adjacent sectors.
Claim 14
Dependent Claim
25 words
An apparatus as claimed in claim 10, in which: said first and said second transmitting antenna arrays (15A, 17A) are planar antenna arrays (47, 50).
Claim 15
Dependent Claim
75 words
An apparatus as claimed in claim 11, in which: power is distributed to said planar antenna arrays (47, 50) so that the centermost elements in said planar antenna arrays (47, 50) radiate more power than elements at the periphery of said planar antenna arrays (47, 50) so hat the first sidelobe exposed to the one over adjacent sector is substantially lower resulting in a lower level of unwanted energy in the one over adjacent sector.
Claim 16
Dependent Claim
98 words
An apparatus as claimed in claim 12, further comprising: a controller (32); said controller (32) being coupled to said transmitting antenna arrays (15A, 17A); a first customer interface unit (44) being coupled to said first receiver (20); and a second customer interface unit (44) being coupled to said second receiver (22); both said first and said second customer interface units (44) for receiving a code from said transmitting antenna array which informs said first and said second customer interface units (44) about a scrambling pattern that will be issued by said controller (32) which enables encryption and decryption.
Claim 17
Dependent Claim
34 words
An apparatus as claimed in claim 10, in which said first and said second receivers (20, 22) are used to process orthogonally polarized signals in which one polarity is predominant to perform active cancellation.
References Cited (Backward Citations)
US2288802A
Cited
FR1024523A
Cited
DE1586260A1
Cited
US4528656A
Cited
US4525861A
Cited
US4783664A
Cited
US4633463A
Cited
EP0179612A2
Cited
EP0201254A2
Cited
US4704733A
Cited
US4920567A
Cited
US4747160A
Cited
US4785450B1
Cited
US4785450A
Cited
WO1990000681A1
Cited
WO1990003088A1
Cited
EP0361299A2
Cited
US5212830A
Cited
WO1993000382A1
Cited
GB2261575A
Cited
US5280297A
Cited
US5491739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-06-22 | 2001-12-22 | 2002-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-22 | 2005-12-22 | 2006-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-22 | 2009-12-22 | 2010-06-23 | $7700.00 | Window Closed / Lapsed |