Title:
Antenna feed system simultaneously operable at two frequencies utilizing polarization independent frequency selective intermediate reflector
Document Type and Number:
United States Patent 3231892


Inventors:
Matson, John L.
O'nians, Frank A.
      Plaque It!

Publication Date:
01/25/1966
View Patent Images:
Images are available in PDF form when logged in. To view PDFs, Login  or  Create Account (Free!)
Export Citation:
Click for automatic bibliography generation
Assignee:
PHILCO CORP
Primary Class:
343/775
Other Classes:
343/837, 343/779, 343/909, 343/912
International Classes:
H01Q15/00
US Patent References:
2342721Parabolic reflector
2423648Antenna
2763860Hertzian optics
2840820Artificial medium of variable dielectric constant
2870444Radiating systems
2972743Combined infrared-radar antenna
3025515Two-band scanning system
3148370Frequency selective mesh with controllable mesh tuning
Foreign References:
DE861718C
GB439608A




<- Previous Patent (Multi-polarized loop...)   |   Next Patent (Cassegrainian antenn...) ->