IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0194027
(2002-07-12)
|
발명자
/ 주소 |
- Lamensdorf, David
- Smolinski, Michael
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
150 인용 특허 :
21 |
초록
▼
Single and dual frequency band spatial null steering antenna arrays are disclosed, comprised of primary resonant quadrifilar helix antennas and auxiliary resonant patch antennas, which comprise stacked patches in the dual-band embodiments. Several feed networks are described for producing, preferabl
Single and dual frequency band spatial null steering antenna arrays are disclosed, comprised of primary resonant quadrifilar helix antennas and auxiliary resonant patch antennas, which comprise stacked patches in the dual-band embodiments. Several feed networks are described for producing, preferably, circularly polarized radiation in satellite frequency bands (e.g., L1 and L2) with pattern nulls steerable to desired elevation angles. Various top and bottom-fed quadrifilar helix antennas configurations are also described.
대표청구항
▼
Single and dual frequency band spatial null steering antenna arrays are disclosed, comprised of primary resonant quadrifilar helix antennas and auxiliary resonant patch antennas, which comprise stacked patches in the dual-band embodiments. Several feed networks are described for producing, preferabl
Single and dual frequency band spatial null steering antenna arrays are disclosed, comprised of primary resonant quadrifilar helix antennas and auxiliary resonant patch antennas, which comprise stacked patches in the dual-band embodiments. Several feed networks are described for producing, preferably, circularly polarized radiation in satellite frequency bands (e.g., L1 and L2) with pattern nulls steerable to desired elevation angles. Various top and bottom-fed quadrifilar helix antennas configurations are also described. 2001172767, JP; 2001-172767, JP; 2001-189312, JP; 2001-217206, JP; 2001-220287, JP; 2001-220294, JP; 2001-240972, JP; 2001-254181, JP; 2001-284042, JP; 2001-303251, JP; 2001-328900, JP; 200260944, JP; 200269641, JP; 200293804, JP; 2002167672, JP; WO90/002216, WO; WO91/010510, WO; WO93/002111, WO; WO96/017107, WO; WO96/018756, WO; WO98/006889, WO; WO98/051838, WO; WO99/001595, WO; WO99/013504, WO; WO99/029924, WO; WO99/041423, WO; WO99/065064, WO; WO00/011721, WO; WO00/015865, WO; WO00/015881, WO; WO00/016377, WO; WO00/054320, WO; WO00/063957, WO; WO00/070674, WO; WO00/079019, WO; WO00/079576, WO; WO01/015220, WO; WO01/017692, WO; WO01/025502, WO; WO01/027346, WO; WO01/027347, WO; WO01/029280, WO; WO01/029891, WO; WO01/029893, WO; WO01/036702, WO; WO01/040541, WO; WO01/066832, WO; WO01/082390, WO; WO02/008485, WO; WO02/009167, WO; WO02/027063, WO; WO02/043115, WO; WO02/045167, WO; WO02/067319, WO
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