Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1984-10-12
1987-05-26
Lieberman, Eli
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343909, 252514, 501 19, 339DIG3, H01B 122, H01Q 1510, H01Q 2112
Patent
active
046689575
ABSTRACT:
The invention comprises a solid material that is an electrical conductor in a single direction which comprises an amorphous glass matrix containing a plurality of microscopically thin metal filaments, all of which are oriented in the direction of conductivity and extend to or near the surfaces of the solid material. This directionally conducting material is produced by subjecting a metastable glass supersaturated with metal to directed ionic radiation. On irradiation parallel microscopic holes or pores are formed which become filled with molten metal during tempering, which cool to form metallic dipole filaments. The thickness of the material and the angle of irradiation may be selected to produce dipole filaments of lengths appropriate to act as antennas for electromagnetic radiation of wavelengths from less than about 0.1 micron to about 1 mm. The direction of conductivity, i.e., the direction of the metal filaments, may be at any predetermined angle to the surface of the solid material controlled by the direction of irradiation.
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Gesellschaft f/u/ r Schwerionenforschung mbH Darmstadt
Lieberman Eli
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