4. Communications: radio wave antennas
  5. Antennas
  6. Balanced doublet - centerfed

Arthur Luedtke

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Adjustable yagi antenna

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent

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Antenna pattern combiner

Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
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Antenna system for deriving cardiod patterns

Communications: radio wave antennas – Antennas – Plural antennas spaced a fractional or full wave length apart
Patent

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Direction finding system

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
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Directional annular slot antenna

Recording – communication – or information retrieval equipment – Computer – data processor equipment
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Profile ID: LFUS-PAI-P-141192

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