JPH01153720U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an antenna device according to an embodiment of this invention, Fig. 2 is a block diagram of elements of the antenna device according to this invention, Fig. 3 is a block diagram showing a conventional antenna device, and Fig. 4 is a block diagram showing an antenna device according to an embodiment of the invention. FIG. 2 is a configuration diagram of elements of a conventional antenna device. 1 is a conformal array antenna, 2 is a structural base, 3 ₁ to 3n are elements, 4 ₁ to 4n are signal lines, 5 is a microwave beam forming circuit, 6 ₁ to 6n are element antennas, and 7 is a digital beam forming circuit ,
8 ₁ to 8m are output terminals, 9 is a monopulse pattern forming circuit, 10 ₁ to 10k are monopulse pattern output terminals, 11 ₁ to 11n are low noise amplifiers, 12
₁ to 12n are analog-to-digital converters.
In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In a conformal array antenna having a structural base having a given shape such as the surface of an aircraft or a ship, and a plurality of elements arranged along the structural base, each element is provided with a low noise amplifier and the above. An analog-to-digital converter that directly or converts the output of the low-noise amplifier into an IF and then converts it into a digital signal, a digital beam-forming circuit that combines the outputs of the analog-to-digital converter to form a beam, and the digital beam-forming circuit. 1. An antenna device further comprising a monopulse forming circuit that uses any two beams that are beam-combined.