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H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01Q
ANTENNAS, i.e. RADIO AERIALS
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9/00
Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
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H01Q9/04
Resonant antennas
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H01Q9/16
with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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H01Q9/28
Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
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