AN/APG-67 Multimode Radar Development Program 841453
The AN/APG-67 Multimode Radar is the newest tactical fighter radar that is being designed and developed explicitly for Northrop's F-20 Tigershark. It is designed to support the six main missions of the F-20. In the air-to-air missions of supersonic intercept, combat air patrol, and air superiority, the radar modes include search and track for both look-up and look-down situations and automatic acquisition and track for air combat. Additional air-to-air capabilities include track-while-scan and provisions for AIM-7 continuous wave illumination. For the air-to-surface modes of interdiction, close air support, and sea detection, the radar's repertoire includes real beam ground map, high resolution doppler beam sharpening, coherent moving target indication, surface moving target track, and air-to-ground ranging.
To meet the requirements of high performance and small size simultaneously, advanced technology was employed to the maximum extent possible. These hardware approaches were employed: an integrated low noise receiver, pulse compression, and digital Fast Fourier Transform processing. The small size was realized through extensive use of microwave integrated circuits, low peak power TWTA in the transmitter, and custom CMOS large scale integrated circuits for signal processing. Other features include two single board 1750A central processing units and high density static memories. Characteristics of the AN/APG-67 radar are described in terms of each of the four line replaceable units (LRUs): antenna, transmitter, radar target data processor, and radar data computer. Finally, data from the flight test program is presented for all of the major radar modes.