I have a design for a simple addressable temperature probe (PIC and
dallas semi "1wire temperature probe") that will be placed near a high
strength RF transmiter. Transmitter is for long range coms spanning
several miles in the 500Mhz to 1Ghz frequency range (5 - 20 watts?).
The unit cannot be placed inside a shielded enclosure and the
electonics will recieve direct exposure to the RF.
What are some circuit design practices to harden the circuit form the
effects of the RF field.
Are there any components that are particularly sensitive to RF.
Mosfets (enhancement or delpetion) that may turn on unexpectadly?
BJTs?
PIC micros with internal RC oscillator?
opamps?
The board does have individual wires that extend off the board and I'm
sure would pickup significant RF.
ferrite beads?
diodes?
thanks
dallas semi "1wire temperature probe") that will be placed near a high
strength RF transmiter. Transmitter is for long range coms spanning
several miles in the 500Mhz to 1Ghz frequency range (5 - 20 watts?).
The unit cannot be placed inside a shielded enclosure and the
electonics will recieve direct exposure to the RF.
What are some circuit design practices to harden the circuit form the
effects of the RF field.
Are there any components that are particularly sensitive to RF.
Mosfets (enhancement or delpetion) that may turn on unexpectadly?
BJTs?
PIC micros with internal RC oscillator?
opamps?
The board does have individual wires that extend off the board and I'm
sure would pickup significant RF.
ferrite beads?
diodes?
thanks