Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1981-07-07
1984-03-27
Lieberman, Eli
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 18A, 343909, 427404, H01Q 1500
Patent
active
044397682
ABSTRACT:
Metallized sheet-form textiles of synthetic polymers or natural fibres to which a metal layer has been applied by wet-chemical currentless deposition are particularly suitable for screening electromagnetic waves in the range from 10 MHz to 1000 GHz. Since the textile properties are substantially unaffected by the metallization, the sheet-form textiles are particularly suitable for use in the medical and communications fields. A multiple-layer construction with insulating intermediate layers and surface linings may be useful, for example in the screening of relatively low frequencies.
REFERENCES:
patent: 2447380 (1948-08-01), Wenger
patent: 2750321 (1956-06-01), Koppelman
patent: 2814038 (1957-11-01), Miller
patent: 3047860 (1962-07-01), Swallow et al.
patent: 3967010 (1976-06-01), Maekawa
patent: 4064305 (1977-12-01), Wallin
patent: 4199623 (1980-04-01), Nuzzi et al.
Ebneth Harold
Fitzky Hans-Georg
Bayer Aktiengesellschaft
Lieberman Eli
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