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Patent US6137434A successfully refreshed from Google Patents.
US6137434A
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US
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Multibeam radar system
Assignee: Honda Motor Co Ltd
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Filing: 1999-07-14
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Granted: 2000-10-24
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Expires: 2019-07-14
Abstract
Abstract A multibeam radar system includes a multibeam radar module having n (n is a natural number of at least 3) transmitting/receiving channels for transmitting high-frequency signals and receiving echo signals, and a radar circuit for detecting a distance up to an object which produces the echo signals and/or a relative speed of the object from a relationship between the high-frequency signals and the echo signals in the transmitting/receiving channels. The radar circuit includes a channel controller for selecting sets of m (m is a natural number smaller than n) adjacent transmitting/receiving channels sequentially to transmit the high-frequency signals and receive the echo signals in a high-azimuth-resolution mode. The channel controller may also select the transmitting/receiving channels sequentially one by one to transmit the high-frequency signals and receive the echo signals in a low-azimuth-resolution mode.
Inventors
- 👤 Ken-i-chi Tohya
- 👤 Masanobu Urabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:39
CPC Classifications
H; H01; H01Q; H01Q25/00; G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/34; G01S13/46; G01S13/48; G01S13/88; G01S13/93; G01S13/931; G01S7/00; G01S7/02; G01S7/023; G01S7/0235; G01S7/0236; G01S7/03; G01S7/032; H01Q1/00; H01Q1/27; H01Q1/32; H01Q1/3208; H01Q1/3233; H01Q1/36; H01Q1/38; H01Q21/00; H01Q21/06; H01Q21/061; H01Q21/065; G01S2013/0236; G01S2013/0245; G01S2013/0263; G01S2013/9327; G01S2013/93271; G01S2013/93275
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
A multibeam antenna comprising: a dielectric substrate; and a plurality of transmitting/receiving channels for transmitting high-frequency signals and receiving echo signals, said transmitting/receiving channels being mounted on said dielectric substrate and comprising a first group of planar array antenna elements acting as a transmitting only primary radiator and a second group of planar array antenna elements acting as a receiving only primary radiator, said first group of planar array antenna elements and said second group of planar array antenna elements being disposed in opposite relation to each other on said dielectric substrate to reduce interference between the first and second groups of antenna elements.
Claim 2
Dependent Claim
104 words
A multibeam antenna comprising: a dielectric substrate; and a plurality of transmitting/receiving channels for transmitting high-frequency signals and receiving echo signals, said transmitting/receiving channels being mounted on said dielectric substrate and comprising a first group of planar array antenna elements acting as a transmitting only primary radiator and a second group of planar array antenna elements acting as a receiving only primary radiator, said first group of planar array antenna elements and said second group of planar array antenna elements being disposed in opposite relation to each other on said dielectric substrate to reduce interference between the first and second groups of antenna elements.
Claim 3
Dependent Claim
37 words
A multibeam antenna according to claim 1, wherein said first group of planar array antenna elements and said second group of planar array antenna elements are disposed in interdigitating relation to each other on said dielectric substrate.
Claim 4
Dependent Claim
47 words
A multibeam antenna according to claim 1, further comprising an electromagnetic shield partition disposed on said dielectric substrate, said first group of planar array antenna elements and said second group of planar array antenna elements being separated from each other by said electromagnetic shield partition disposed therebetween.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-10-24 | 2004-04-24 | 2004-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-24 | 2008-04-24 | 2008-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-24 | 2012-04-24 | 2012-10-24 | $7700.00 | Window Closed / Lapsed |