DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0423320
Title:
DESIGN OF A NARROW WALL TRANSVERSE SLOTTED WAVEGUIDE ARRAY AT 70 GC,
Descriptive Note:
Corporate Author:
HARRY DIAMOND LABS WASHINGTON D C
Report Date:
1963-09-30
Pagination or Media Count:
31.0
Abstract:
Research concerned the design of a slotted waveguide antenna array for a low-power lightweitht, 70 Gc ground ranging radar system. Narrow-wall transverse slot arrays were designed, using both the Taylor and the uniform aperture distributions. The methods and equations used in the design are discussed. A generalized method of obtaining Taylor aperture distributions, with minimum effort, is presented. A 100-slot array was built using the uniform aperture distribution, and a 164-slot array was constructed using the Taylor aperture distribution. Both arrays were constructed using RG-98U waveguide. At the design frequency, the 100-slot array had calculated and measured efficiencies of 84 and 81 percent, while the 164-slot array had calculated and measured efficiencies of 86 and 83 percent, respectively. Measurements taken on these arrays showed that beamwidth and sidelobe levels were within design requirements. Author
Distribution Statement:
APPROVED FOR PUBLIC RELEASE