RF Detectors are very useful on every level of component design. When it comes to RF detectors for wireless devices, many newbie users still have questions they need answered. Here are answers to some of the most popular questions.
Q: What exactly is an RF detector?
A: This type of detector monitors the output of an RF circuit. After this, a dc output voltage which is proportional to the power is initialized.
Q: Why would anyone need this?
A: They are mainly used for measuring and controlling the power pertaining to wireless systems.
Q: Why is measurement and control of the power important?
A: The primary measure of a wireless signal is actually the RF power, not the voltage. The strength of the signal is crucial to maintaining a strong connection to the wireless device. As far as the transmitter goes, the power is important to adhere to regulation guidelines. Also, the radio link reliability and range can only be maintained via a strong source of RF power.
Q: What types of RF detectors are there?
A: Yes, there are. One type is logarithmic. This type converts RF power input into a proportional dc voltage. This relates the output to decibels in a direct fashion. The second type is is referred to as rms. This type of detector puts forth a dc output that is directly proportional to the signal’s rms value.
Q: How does one know what type of RF signal detector to purchase is the best for them?
A: The RF detector to be purchased completely depends on the RF signal which must be measured. For most general uses, the logarithmic RF detector is the most reasonable one to purchase. If the signal possesses a high crest factor, then the rms RF detector is the best option to be used.
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