4. Communications: radio wave antennas
  5. Antennas
  6. Spiral or helical type

Thomas J. Birnbaum

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Antenna configuration and system for determining the direction o

Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Patent

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Multiple-tuned normal-mode helical antenna

Communications: radio wave antennas – Antennas – Spiral or helical type
Patent

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Recessed aperture-coupled patch antenna with multiple...

Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate

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Recessed aperture-coupled patch antenna with multiple...

Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate

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Surface-mountable patch antenna with coaxial cable feed for...

Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1628244

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