Hello,
I'm working on a microprocessor controlled antenna matching system, or tuner. It consists of a number of inductors and capacitors switched in and out of the signal path with relays. See the attached file.
The advantage of relays is that they add almost no inductance, capacitance or resistance to the signal. The disadvantages are that they're electromechanical devices with moving parts that can fail. They also cost about $2USD each.
Could the relays be replaced in this circuit with semiconductor components, and still work at the 3-30MHz frequencies required? If so, where would I go to learn about the techniques of designing such a circuit?
Thanks for your help and advice.
-Kevin
I'm working on a microprocessor controlled antenna matching system, or tuner. It consists of a number of inductors and capacitors switched in and out of the signal path with relays. See the attached file.
The advantage of relays is that they add almost no inductance, capacitance or resistance to the signal. The disadvantages are that they're electromechanical devices with moving parts that can fail. They also cost about $2USD each.
Could the relays be replaced in this circuit with semiconductor components, and still work at the 3-30MHz frequencies required? If so, where would I go to learn about the techniques of designing such a circuit?
Thanks for your help and advice.
-Kevin
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