| 摘要 |
An RF electromagnetic radiation detector has a device that has a first terminal and a second terminal with a PN junction therebetween. The first terminal is connected to the P side of the PN junction and the second terminal is connected to the N side of the PN junction, with the device susceptible to a voltage being built across the PN junction in the presence of RF electromagnetic radiation. The detector is first reverse biased by connecting a first voltage to the first terminal and a second voltage, higher than the first voltage to the second terminal. Current is then measured from the second terminal, where the current measured is indicative of the presence of RF electromagnetic radiation. A temperature sensor has a load, that has a first terminal and a second terminal with the first terminal connectable to a first voltage. A capacitor has a third terminal and a fourth terminal with the third terminal connected to the second terminal and the fourth terminal connectable to a second voltage. The first terminal is connected to the first voltage and the fourth terminal is connected to the second voltage. Finally the first voltage is disconnected from the first terminal and the second voltage from the fourth terminal, and the voltage at the third terminal is measured. The voltage measured at the third terminal or the amount of time required for the voltage at the third terminal to reach a threshold voltage, is dependent upon the ambient temperature.
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