4. Communications: radio wave antennas
  5. Antennas
  6. High frequency type loops

Raymond H. DuHamel

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Circularly polarized antenna with circular arrays of slanted dip

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

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Circularly polarized loop and helix panel antennas

Communications: radio wave antennas – Antennas – High frequency type loops
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Dual polarized sinuous antennas

Communications: radio wave antennas – Antennas – Logarithmically periodic
Patent

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Four wire dual mode spiral antenna

Communications: radio wave antennas – Antennas – Switching between antennas and lines
Patent

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Four wire dual mode spiral antenna

Communications: radio wave antennas – Antennas – Logarithmically periodic
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Profile ID: LFUS-PAI-P-955166

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