How to search for RF Power Sensors
RF Power sensors convert high frequency signals in to analog voltages that can be read by power meters or a computer. These are two kinds of power sensors –
- Thermocouple sensors: Thermocouple sensors use the difference in temperature between two different metals to sense the junction voltage which is then used to estimate the power level.
- Diode Sensors: Diode Sensors convert the rf signals to dc voltages by rectification by using their nonlinear properties. Diode sensors are the preferred choice as they are able to sense lower power levels.
There are three main parameters when looking for RF Power Sensors:
1. Frequency (MHz): This is the frequency range at which the power sensor can be used while maintaining its electric characteristics.
2. Power Measurement (dBm): This is the power range for which this sensor can accurately sense the power levels and transcribe them to a power meter for further processing.
3. Connector: This is the connector type via which the sensor is attached to the device that is being tested.