AN AIRPORT GLIDE-PATH SYSTEM USING FLUSH-MOUNTED, TRAVELING-WAVE RUNWAY ANTENNAS, VOLUME I
Abstract
A five-element, flush-mounted glide-path array and sys em is discus ed which has several s lient featur s: (1) formation of he glide path is ot depe de o reflected signals from the earth s surface, thus reducing the effects of terrain i th approach region; (2) the path is radiated from the region of the runway which is precisely the esired destination of the aircraft; and (3) no item of the entire system need extend above the earth's surface, thus eliminating ob tacle hazards. The system produces a straightline path whose vertical limi s conv rge from a thickness of some 400 feet at the outer marker (5 mile from the en of h runway) O APPROXIMA ELY <) FEET NEAR THE T RESHOLD OF HE RUNWAY AND THEN REMAIN ESSENTIALLY PARALLEL. With less than 1/2 watt delivered to each of the 2 basic array antennas, cover ge for the glide path is better h n 15 mil at 1500 feet. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1960
- Accession Number
- AD0268300
Entities
People
- Richard H. McFarland
Organizations
- Ohio State University