发明名称 |
MICROWAVE LANDING SYSTEM WITH FAIL-SOFT SWITCHING OF DUAL TRANSMITTERS, BEAM STEERING AND SECTOR ANALYSIS |
摘要 |
MICROWAVE LANDING SYSTEM WITH FAIL-SOFT SWITCHING OF DUAL TRANSMITTERS, BEAM STEERING AND SECTOR ANTENNAS An MLS system having redundant subsystems. Dual signal sources feed dual power dividers. A first switch array selects the power divider to be used and provides the selected signals to an array of phase shifters. A second switch array provides the phase shifted signal, which may be amplified, to either a primary array having elements for radiating a scanning beam or a recombining network having outputs connected to auxiliary antennas. A third switch array provides control signals to the array of phase shifters from either a main beam steering unit or a standby beam steering unit. Alternatively, the dual signal sources feed a single power divider through a circulator. Duplicate auxiliary antennas may be used with antenna switches located before the power dividers or circulator for selectively providing the signals to the auxiliary antennas instead of the primary array. |
申请公布号 |
CA1315862(C) |
申请公布日期 |
1993.04.06 |
申请号 |
CA19880565878 |
申请日期 |
1988.05.04 |
申请人 |
HAZELTINE CORPORATION |
发明人 |
FRAZITA, RICHARD F.;FELDMAN, PAUL H. |
分类号 |
G01S1/54;G01S1/02;G01S1/56;G01S19/25;H04B1/74 |
主分类号 |
G01S1/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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