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.)