4. Communications: radio wave antennas
  5. Antennas
  6. With polarization filter or converter

Lawrence Ragan

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Conductor having two frequency-selective surfaces

Communications: radio wave antennas – Antennas – With polarization filter or converter
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Method for phase locking in a phase lock loop

Oscillators – Automatic frequency stabilization using a phase or frequency... – Afc with logic elements
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Paging system with spacial, frequency and time diversity

Communications: electrical – Selective – Having indication or alarm
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Paging system with spacial, frequency and time diversity

Multiplex communications – Communication over free space – Combining or distributing information via time channels
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Profile ID: LFUS-PAI-P-2318762

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