**电话**

010-82250997,82251181
**邮箱**

China@tegam.com

- Calculating a Calibration Factor
When using an RF Power Meter with an RF Power Sensor to make an RF Power Measurement the user must know that the measurement is accurate and there is traceability to a known standard All diode, thermo-electric, and thermistor power sensors have calibration factors associated to particular frequencies that are used to insure an accurate power measurement Technicians and engineers use these calibration factors when making measurements; but where do these calibration factors really come from?

- Measuring Temperature Compensating Thermistors with the TEGAM Model 1830A RF Power Meter
Application Note 217 explains the theory behind measuring power with a dual bridge Power Meter such as the Agilent 432A and shows the reader how to simplify the measurement with the TEGAM 1830A RF Power Meter by eliminating unnecessary test and measurement equipment and lengthy mathematical conversions

- Limitations of Using an AM Leveling L oop for Calibrating RF Power Sensors
Characterizing RF power sensors is commonly done using a direct comparison system which employs a resistive RF power splitter with a power standard connected to a power meter One of the most stable and repeatable type of power standards are thermistor type RF power sensors The ther

- USING AGILENT TEMPERATURE COMPENSATED THERMISTOR MOUNTS WITH TEGAM TYPE IV POWER METERS
Thermistor-based RF power sensors are known by many names including thermistor mounts, thermistor sensors and bolometers Thermistor sensors such as the Agilent (HP) 478A and TEGAM F1109 are dual thermistor based In dual thermistor sensors, a pair of thermistor beads is used to detect RF power When RF power is applied to the thermistor pair, their resistance decreases This decrease can be measured and the amount of RF power applied can be determined

- SWR/Return Loss Measurements Using System IIA
Both SWR and Return Loss are a measure of the divergence of a microwave device from a perfect impedance match, for example, 50Ω They are mathematically interchangeable and result from scalar measurements, which are required for a number of reasons For instance, it is necessary to make sure that devices meet their specifications, one of which is SWR Also, modern measurement practice dictates the calculation of a quantitative accuracy value, which is affected by SWR at the port of a microwave device