Electronically scanned antenna with secondary phase shifters
First Claim
1. An antenna module for an electronically scanned phased array antenna, said module comprising:
- a transmit/receive (T/R) module layer including a plurality of T/R modules;
an external phase shifter layer including a plurality of sets of secondary phase shifters, each set associated with a specific one of the T/R modules;
a horn antenna layer including a plurality of antenna horns, the horn antenna layer positioned between the T/R module layer and the phase shifter layer such that each horn is aligned between one T/R module and the associated one of the sets of phase shifters.
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Accused Products
Abstract
An antenna module for an electronically scanned phased array antenna is provided. In various embodiments, the module includes a transmit/receive (T/R) module layer including a plurality of T/R modules. The module additionally includes an external phase shifter layer that includes a plurality of sets of secondary phase shifters. Each secondary phase shifter set is associated with a specific one of the T/R modules. Furthermore, the module includes a horn antenna layer having a plurality of antenna horns. The horn antenna layer is positioned between the T/R module layer and the phase shifter layer such that each horn is aligned between one T/R module and the associated one of the sets of phase shifters.
42 Citations
23 Claims
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1. An antenna module for an electronically scanned phased array antenna, said module comprising:
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a transmit/receive (T/R) module layer including a plurality of T/R modules; an external phase shifter layer including a plurality of sets of secondary phase shifters, each set associated with a specific one of the T/R modules; a horn antenna layer including a plurality of antenna horns, the horn antenna layer positioned between the T/R module layer and the phase shifter layer such that each horn is aligned between one T/R module and the associated one of the sets of phase shifters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronically scanned phased array antenna comprising:
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a housing; and an antenna module mounted within the housing, the antenna module including; a transmit/receive (T/R) module layer including a plurality of T/R modules; an external phase shifter layer including a plurality of sets of secondary phase shifters, each set associated with a specific one of the T/R modules; a horn antenna layer including a plurality of antenna horns, the horn antenna layer positioned between the T/R module layer and the phase shifter layer such that each horn is aligned between one T/R module and the associated one of the sets of phase shifters. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An antenna module for an electronically scanned phased array antenna, said module comprising:
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a transmit/receive (T/R) module layer including a plurality of T/R modules, each T/R module including; at least one radiator probe feed for at least one of emitting and receiving radio frequency (RF) signals; and a primary phase shifter for providing initial steering of RF signals emitted by the radiator probe feed of the respective T/R module; an external phase shifter layer including a plurality of sets of secondary phase shifters, each set associated with a specific one of the T/R modules for providing secondary steering that modifies the RF signal steered by the primary phase shifter of the associated T/R module; a horn antenna layer including a plurality of antenna horns, the horn antenna layer positioned between the T/R module layer and the phase shifter layer such that each horn is aligned between one T/R module and the associated one of the sets of phase shifters so that each emitted RF signal is space fed to the associated secondary phase shifter set via the horn antenna layer. - View Dependent Claims (20, 21, 22, 23)
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Specification