Antenna reflector

Details Antenna reflector Antenna reflector

1995-10-18

1997-09-23

Pihulic, Daniel T.

Communications: directive radio wave systems and devices (e.g.,

Radar reflector

With modulation

G01S 1375

Patent

active

056709595

ABSTRACT:
An antenna reflector, which can reflect incoming radio waves, is formed as a corner of a cube by orthogonally connecting three reflectors which can reflect incoming radio waves. The reflectors are formed from semiconductor layers, conductive sheets scattered on one surface of the semiconductor layers, insulator films formed on both sides of the semiconductor layers, conductor films provided on the opposite surface of each of the insulator films, and switching elements that are formed on the semiconductor layers and which connect the conductive sheets. As a result, if direct current voltage is applied between the resistor films, the reflectors reflect radio waves while radio waves are absorbed when no direct current voltage is applied, and thus, the reflected radio wave is modulated by the application and non-application of the direct current voltage.

REFERENCES:
patent: 3965234 (1976-06-01), Lane, Jr.
patent: 4195298 (1980-03-01), Firth
patent: 4785301 (1988-11-01), Schafer et al.
patent: 5003319 (1991-03-01), Murakami et al.
patent: 5247305 (1993-09-01), Hirata et al.
patent: 5319373 (1994-06-01), Maxwell et al.

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