Aircraft phased array antenna structure including adjacently supported equipment
First Claim
1. A phased array antenna system for a mobile platform comprising:
- a transmit antenna disposed within a first antenna housing;
a receive antenna disposed within a second antenna housing, said second antenna housing independently mountable from the first antenna housing;
said receive antenna operating to receive a receive antenna signal and to convert said receive antenna signal to an aircraft communication frequency signal before outputting said receive antenna signal from said second antenna housing; and
said transmit antenna operating to transmit a transmit antenna signal and to convert said aircraft communication frequency signal into said transmit antenna signal within said first antenna housing;
wherein each of said first and second antenna housings are adapted for externally mounting to the mobile platform, said first and second antenna housings being mounted in a front-to-back linear arrangement with respect to each other.
1 Assignment
0 Petitions
Accused Products
Abstract
An aircraft phased array antenna system has transmit and receive antenna structures externally mounted on the aircraft fuselage. Each antenna comprises a plurality of phased array elements and antenna power and support equipment. Aerodynamically shaping antenna structure to enclose an antenna element grid provides additional antenna structure volume, which is efficiently utilized by locating antenna support equipment within the antenna structure. To control signal attenuation a receive antenna internal converter converts receive frequency signals to L-band frequency signals for aircraft use, and a similar transmit antenna converter converts L-band frequency signals to transmit frequency signals, thus unconstraining antenna to internal aircraft equipment spacing. To reduce power loss and cabling weight, antenna operating power is first generated in the 28 to 270 volts DC range within the aircraft, and locally converted in each antenna to the 3 to 6 volt DC power to operate each antenna'"'"'s phased array elements.
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Citations
26 Claims
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1. A phased array antenna system for a mobile platform comprising:
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a transmit antenna disposed within a first antenna housing;
a receive antenna disposed within a second antenna housing, said second antenna housing independently mountable from the first antenna housing;
said receive antenna operating to receive a receive antenna signal and to convert said receive antenna signal to an aircraft communication frequency signal before outputting said receive antenna signal from said second antenna housing; and
said transmit antenna operating to transmit a transmit antenna signal and to convert said aircraft communication frequency signal into said transmit antenna signal within said first antenna housing;
wherein each of said first and second antenna housings are adapted for externally mounting to the mobile platform, said first and second antenna housings being mounted in a front-to-back linear arrangement with respect to each other. - View Dependent Claims (2, 3, 4, 5)
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6. A phased array antenna communication system for external mounting on a mobile platform comprising:
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a pair of antennas being one each of a transmit antenna and a receive antenna;
a transmit antenna housing for enclosing the transmit antenna and a transmit antenna equipment group;
a receive antenna housing independently positionable from the transmit antenna housing for enclosing the receive antenna and a receive antenna equipment group;
each equipment group being in electrical communication with an aircraft communication signal, said signal having an operating frequency ranging from an ultra-high frequency to an L-band frequency;
an aircraft mounted converter to convert an aircraft service voltage to an antenna power transfer voltage; and
each antenna housing having a transfer converter to convert said transfer voltage to an antenna operating voltage and each adaptable for external mounting to the mobile platform;
wherein a depth of said transmit and receive antenna housings is determinable by a space envelope of the transmit and receive antennas, said transmit antenna equipment group and said receive antenna equipment group being each positionable adjacent the space envelope of respective ones of the transmit and receive antennas within their respective housings without increasing said depth. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An aircraft phased array antenna communication system providing antennas and antenna servicing equipment in at least one aircraft mounted structure, said system comprising:
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at least two antenna discs externally mounted on an aircraft fuselage adjacent and in a fore-aft orientation with respect to each other, each disc forming one of a transmit antenna housing and a receive antenna housing;
the transmit antenna housing and the receive antenna housing each having a plurality of phased array antenna elements disposed therein;
each of the plurality of phased array antenna elements being connectably joined to a surface of a pre-selected antenna disc for one of transmitting and receiving an electromagnetic signal;
said electromagnetic signal being one of a transmit frequency and a receive frequency;
a power and control equipment group positioned within each said disc; and
each said equipment group operable to convert between one of the transmit frequency and the receive frequency and an aircraft communication signal frequency. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A phased array antenna communication system for external mounting on a mobile platform comprising:
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a pair of multiple element phased array antennas including a transmit antenna and a receive antenna;
a transmit antenna housing for enclosing the transmit antenna and a transmit antenna equipment group;
a receive antenna housing for enclosing the receive antenna and a receive antenna equipment group;
wherein each of said transmit and receive antenna housings further include a substantially tear-drop shape adaptable to be entirely external to the mobile platform; and
wherein a depth of said transmit and receive antenna housings is determinable by a space envelope of the transmit and receive antennas, said transmit antenna equipment group and said receive antenna equipment group being each positionable adjacent the space envelope of respective ones of the transmit and receive antennas without increasing said depth.
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Specification