US Patent No: 5,838,282
Number of patents in Portfolio can not be more than 2000
Multi-frequency antenna
Stats
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Nov 17, 1998
Issued date -
Mar 22, 1996
filing date -
08/621,069
serial no -
In Force
status
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Abstract
The present invention relates to an antenna system which is capable of multiband operation from a single antenna aperture. The system provides a high degree of design freedom for achieving desired antenna pattern shapes for all relevant frequency bands. The system achieves this pattern shaping ability by utilizing a unique array configuration which is highly adaptable. The array configuration may include a center array element for each of the relevant frequency bands. In one embodiment of the present invention, a dual frequency band antenna is provided which includes a stacked patch element as the center element in a first frequency band and a crossed dipole element, mounted on top of the stacked patch, as the center element in the second frequency band.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,220,334 Multifrequency antenna, useable in particular for space telecommunications | 13 | 1989 | |
| 5,434,580 Multifrequency array with composite radiators | 13 | 1993 | |
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| 5,258,771 Interleaved helix arrays | 28 | 1990 | |
| 5,300,936 Multiple band antenna | 70 | 1992 | |
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| 4,962,383 Low profile array antenna system with independent multibeam control | 44 | 1984 | |
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| 4,329,689 Microstrip antenna structure having stacked microstrip elements | 35 | 1978 | |
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| 4,605,932 Nested microstrip arrays | 25 | 1984 | |