Abstract: 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.

Abstract: A modular protection circuit can protect a first terminal and a second terminal of a first device. The circuit comprises a load device which has a third terminal and a fourth terminal with the third terminal for connection to a first voltage. A first diode is provided, with the first diode having a first cathode and a first anode with the first cathode connected to the fourth terminal and the first anode connected to the first terminal. A second diode is provided with the second diode having a second cathode and a second anode with the second cathode connected to the fourth terminal and the second anode connected to the second terminal. A third diode is provided with the third diode having a third cathode and a third anode with the third cathode connected to the first terminal and the third anode connected to a second voltage.

Abstract: 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.