Current interferometer arrays are fixed placements and limited to specific areas of coverage. With a traditional approach an array of 30 feet by 30 feet is necessary to provide the required accuracy. This project is to develop an interferometer df antenna array to be operated in the band of 2.2 to 2.4 ghz, have coverage of 360 degrees in azimuth, 90 degrees in elevation, and meet the mobility requirements. tasks of Phase II are: 1. To develop the rf components which are outlined in the Phase I study program. These include the phase shifter, coupler, aperture antenna element and electronics interface. 2. To develop and fabricate two integrated interferometer df antenna arrays which are suitable for two dimensional coverage. This linear array antenna shall have an angular resolution of four tenths of degree and be less than 5 feet long. 3. To analyze the df resolution and accuracy from the measured antenna patterns. 4. To demonstrate the feasibility of this design and its adaptation in interferometer DF antenna applications.
