Communications: radio wave antennas – Antennas – With spaced or external radio wave refractor
Patent
1986-06-03
1995-08-22
Blum, Theodore M.
Communications: radio wave antennas
Antennas
With spaced or external radio wave refractor
342368, H01Q 1906
Patent
active
054444543
ABSTRACT:
Microwave apparatus for altering the phase-front of microwave energy propagating in a predetermined path and in which there is provided a panel having a plurality of electrically-conductive leads extending substantially parallel to the electric vector of the wave, each of these leads is lengthwise divided into sections. A semiconductor junction is formed in the semiconductor material at each end of each section of lead. Each pair of confronting junctions together with the semiconductor material therebetween provide a surface oriented semiconductor diode switch. A switching voltage is applied to each of the leads so as to render at least some of the diodes in each of the leads simultaneously either conductive or non-conductive, thereby allowing each of the leads to be electrically either divided into said sections or continuous throughout at least a portion of its length.
REFERENCES:
patent: 3708796 (1973-01-01), Gilbert
patent: 3959794 (1976-05-01), Chrepata et al.
patent: 4297708 (1981-10-01), Vidal
patent: 4320404 (1982-03-01), Chekroun
Blum Theodore M.
M/A-COM, Inc.
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