4. Wave transmission lines and networks
  5. Coupling networks
  6. Frequency domain filters utilizing only lumped parameters

Andrew F. Folkmann

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Active quadrature radio frequency power detector

Telecommunications – Transmitter – Measuring – testing – or monitoring of transmitter
Reexamination Certificate

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Dual mode quadrature radio frequency power amplifier

Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Reexamination Certificate

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Electronically tunable band reject filter

Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Patent

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Feed forward circuit

Wave transmission lines and networks – Coupling networks – Nonreciprocal gyromagnetic type
Patent

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Forward and reverse VSWR insensitive power detection using...

Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate

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Profile ID: LFUS-PAI-P-921561

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