Dual beam line scanner for phased array applications

Details Dual beam line scanner for phased array applications Dual beam line scanner for phased array applications

1978-09-28

1980-05-13

Moore, David K.

Communications: radio wave antennas

Antennas

Having electric space discharge device

343754, 343854, H01Q 326

Patent

active

042031176

ABSTRACT:
A millimeter wave line scanner is disclosed providing steered fan-shaped ms from opposite faces at substantially equal angles of a semiconductor waveguide, rectangular in cross section, and having a plurality of equally spaced metallic perturbations or strips disposed on one of the two radiating sides or faces. Different angles of scan are selectively obtained by means of at least one distributed longitudinal PIN diode formed on an adjoining side of the semiconductor waveguide having electrical circuit means coupled thereto for controlling the diode's conductivity which acts to change the guide wavelength and accordingly cause a variation in radiation angle of the two equal beams radiating in opposite directions and by means coupling energy of changing frequency to the semiconductor waveguide.

REFERENCES:
patent: 2921308 (1960-01-01), Hansen et al.
patent: 3155975 (1964-11-01), Chatelain
patent: 3959794 (1976-05-01), Chrepta et al.
patent: 3969729 (1976-07-01), Nemit

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