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Rectifying Antenna

Rectifying Antenna. Basic Design: Antenna – Transformer – Rectifying Diode Design problems: High enough voltage swing for the diode to switch Fast enough diode to switch at 462 MHz. Maximizing diode input swing. The diode circuit loading the transformer has an effective dynamic resistance

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Rectifying Antenna

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  1. Rectifying Antenna • Basic Design: Antenna – Transformer – Rectifying Diode Design problems: • High enough voltage swing for the diode to switch • Fast enough diode to switch at 462 MHz

  2. Maximizing diode input swing • The diode circuit loading the transformer has an effective dynamic resistance • This resistance is reflected looking into the primary of the transformer • The voltage drop across the primary of the transformer is thus the result of a voltage divider

  3. Maximizing diode input swing

  4. Maximizing diode input swing

  5. BAT62/INF: Silicon Schottky Diode “Low barrier diode up to GHz Frequencies” (Infineon Tech.; listed under RF diodes.)

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