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- RF_probe abstract "An RF probe is a device which allows electronic test equipment to measure radio frequency (RF) signal in an electronic circuit.RF energy may be challenging to measure for one or more reasons, depending on the nature of the circuit to be measured and the measuring equipment at hand. The first kind of difficulty arises when the RF energy to be measured is at a frequency too high for available test equipment, such as a low-bandwidth oscilloscope, to process directly. In that case, the RF has to be converted to a DC or near-DC signal.File:RF-probe.gifIn this situation, a simple probe type sometimes called an RF detector can be used to convert the RF signal to DC. Such device will work as a RF rectifier and give a pulsed DC voltage.The second kind of difficulty arises when RF energy has to be measured in a circuit which is sensitive to small changes in its electrical environment. For example, with some oscillator circuits, the presence of an ordinary wire within a few centimeters of the active components may change the amplitude or frequency of oscillations, or even prevent the circuit from oscillating at all. In that case, the signal has to be acquired by a measurement probe which extracts very little energy from the circuit. This can be achieved by employing very thin conductors, or tiny coils kept at some minimum separation from the active elements of the circuit.In a situation, where circuit loading rather than high frequency is the real problem, a variety of small-geometry, high impedance probes can be used, sometimes including an amplifier to boost the tiny amount of energy extracted from the circuit to a level that allows it to be measured by available high-frequency test equipment.Coaxial structures with spring-loaded inner and outer conductors can serve as an RF probe for modern communication electronics. These structures can especially be relevant for RF traces in printed circuit boards as well as terminations of RF components. In such systems, like many other RF circuits, there is a higher requirement of matching probe impedance with that of the DUT. Efficient matching avoids reflection which in turn leads to efficient power transfer. The second challenge to keep the power transfer efficient is to keep the insertion loss as low as possible. Optimizing these parameters generally gets more challenging as the frequency increases.".
- RF_probe thumbnail RF-probe.gif?width=300.
- RF_probe wikiPageExternalLink groups?selm=31E834A8.2111%40gv.net.
- RF_probe wikiPageExternalLink KA8MAV_RF_Probe.html.
- RF_probe wikiPageID "284550".
- RF_probe wikiPageLength "3062".
- RF_probe wikiPageOutDegree "15".
- RF_probe wikiPageRevisionID "656156805".
- RF_probe wikiPageWikiLink Amplifier.
- RF_probe wikiPageWikiLink Category:Electronic_circuits.
- RF_probe wikiPageWikiLink Category:Electronic_test_equipment.
- RF_probe wikiPageWikiLink Category:Radio_electronics.
- RF_probe wikiPageWikiLink Direct_current.
- RF_probe wikiPageWikiLink Electronic_circuit.
- RF_probe wikiPageWikiLink Electronic_test_equipment.
- RF_probe wikiPageWikiLink Frequency.
- RF_probe wikiPageWikiLink High_impedance.
- RF_probe wikiPageWikiLink Oscillation.
- RF_probe wikiPageWikiLink Oscillator.
- RF_probe wikiPageWikiLink Oscilloscope.
- RF_probe wikiPageWikiLink Radio_frequency.
- RF_probe wikiPageWikiLink Rectifier.
- RF_probe wikiPageWikiLink Volt.
- RF_probe wikiPageWikiLink File:RF-probe.gif.
- RF_probe wikiPageWikiLinkText "RF probe".
- RF_probe wikiPageWikiLinkText "RF probes".
- RF_probe wikiPageWikiLinkText "RF_probe".
- RF_probe hasPhotoCollection RF_probe.
- RF_probe wikiPageUsesTemplate Template:Electronics-stub.
- RF_probe wikiPageUsesTemplate Template:Reflist.
- RF_probe subject Category:Electronic_circuits.
- RF_probe subject Category:Electronic_test_equipment.
- RF_probe subject Category:Radio_electronics.
- RF_probe hypernym Device.
- RF_probe type Device.
- RF_probe type Instrument.
- RF_probe type Circuit.
- RF_probe type Instrument.
- RF_probe comment "An RF probe is a device which allows electronic test equipment to measure radio frequency (RF) signal in an electronic circuit.RF energy may be challenging to measure for one or more reasons, depending on the nature of the circuit to be measured and the measuring equipment at hand. The first kind of difficulty arises when the RF energy to be measured is at a frequency too high for available test equipment, such as a low-bandwidth oscilloscope, to process directly.".
- RF_probe label "RF probe".
- RF_probe sameAs m.01pvcl.
- RF_probe sameAs Q7276619.
- RF_probe sameAs Q7276619.
- RF_probe wasDerivedFrom RF_probe?oldid=656156805.
- RF_probe depiction RF-probe.gif.
- RF_probe isPrimaryTopicOf RF_probe.