US5710569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna system having a choke reflector for minimizing sideward radiation
Assignee: CASCADE IP CONSULTING LLC
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Filing: 1995-04-25
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Granted: 1998-01-20
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Expires: 2015-04-25
Abstract
Abstract A antenna system of the present invention comprises a radiator for radiating a radio frequency, which is converted from electric power, and which has a impedance matching unit and a power divider; a first reflector for reflecting and filtering the radio frequency; and at least one second reflector for filtering the radio frequency radiated in the sideward direction of the antenna system, which is vertically attached to the first reflector, and is able to be moved in a horizontal direction.
Inventors
- 👤 Jung Kun Oh
- 👤 Yong Hee Lee
- 👤 Jae Ho Lee
- 👤 Jung Sik Kim
- 👤 Byung Ill Oh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:39
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q19/00; H01Q19/10; H01Q19/108; H01Q3/12; H01Q3/16; H01Q3/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
80 words
An antenna system comprising: a radiating means for radiating a radio frequency, which is converted from electric power, and which has an impedance matching unit and a power divider; a first reflecting means for reflecting and filtering said radio frequency; and at least one second reflecting means for filtering said radio frequency radiated in a sideward direction of said antenna system, which is vertically attached to said first reflecting means, and is able to be moved in a horizontal direction.
Claim 2
Dependent Claim
80 words
An antenna system comprising: a radiating means for radiating a radio frequency, which is converted from electric power, and which has an impedance matching unit and a power divider; a first reflecting means for reflecting and filtering said radio frequency; and at least one second reflecting means for filtering said radio frequency radiated in a sideward direction of said antenna system, which is vertically attached to said first reflecting means, and is able to be moved in a horizontal direction.
Claim 3
Dependent Claim
24 words
An antenna system in accordance with claim 1, wherein said antenna system further comprises a snow-proof cover to protect internal elements from external conditions.
Claim 4
Dependent Claim
22 words
An antenna system in accordance with claim 1, wherein said first reflecting means is folded to an angle of 45° to 90°.
References Cited (Backward Citations)
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Cited
EP0045254A1
Cited
US5111214A
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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) | 2001-01-19 | 2001-07-21 | 2002-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-19 | 2005-07-21 | 2006-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-19 | 2009-07-21 | 2010-01-20 | $7700.00 | Window Closed / Lapsed |