RF Detectors

What is an RF Detector?

An RF detector monitors or samples the output of an RF circuit and develops a dc output voltage proportional to the power at that point. RF power, rather than voltage is the primary measure of a wireless signal. In a receiver, signal strength is a key factor in maintain reliable communications.

RF detectors are used primarily to measure and control RF power in wireless systems.

Different types of RF Detectors

There are two basic types

• Logarithmic type: converts the input RF power into a dc voltage proportional to the log of the input
• RMS type: creates a dc output proportional to the RMS value of the signal

Selecting the right RF detector

The type of RF signal to be measured is the most important determining factor in the type of detector to use. For most general power measurement and control applications, the log type is the most useful. For pulsed RF signals, the log type is also best because of the fast response times available. Applications where the signal has a high or varying crest factor (measure of a waveform, ratio of the peak values to RMS value of the signal) the RMS type is better.

Applications include
• Transmit/Receive Power Measurement
• Input Protection
• Return Loss Measurement
• RF Pulse Detection
• Precise RF Power Measurement in Test and Measurement
• Materials Analysis
• Healthcare
• Security systems
• Traffic management

RF detectors are an ideal tool for the measurement of radio frequency (RF) signals as they locate all RF signals.

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Description Price Maximum Frequency Minimum Frequency Frequency Sensitivity Output Polarity Connector Type Dimensions Weight Maximum Operating Temperature Minimum Operating Temperature Height Length Model Number p Width
RS stock no. 912-8264
Mfr. Part No.AD8312ACBZP2
R 34.532
Each (On a Reel of 250)
units
- - - - - - - - - - - - -
RS stock no. 810-0057
Mfr. Part No.AD8312ACBZ-P7
R 31.865
Each (In a Pack of 2)
units
3.5GHz 50 MHz 49dB Positive - 1.5 x 1 x 0.38mm - +85°C -40°C 0.38mm 1.5mm AD8312 1mm
RS stock no. 168-4303
Mfr. Part No.AD8312ACBZ-P7
R 31.076
Each (On a Reel of 3000)
units
3.5GHz 50 MHz 49dB Positive - 1.5 x 1 x 0.38mm - +85°C -40°C 0.38mm 1.5mm AD8312 1mm
RS stock no. 862-6180
Mfr. Part No.HMC611LP4E
R 380.10
Each
units
10GHz 1 MHz - - - 4.1 x 4.1 x 1mm - +85°C -40°C 1mm 4.1mm HMC611LP4E 4.1mm
RS stock no. 160-2668
Mfr. Part No.HMC611LP4E
R 336.818
Each (On a Reel of 50)
units
10GHz 1 MHz - - - 4.1 x 4.1 x 1mm - +85°C -40°C 1mm 4.1mm HMC611LP4E 4.1mm
RS stock no. 187-3713
Mfr. Part No.SNYPER-LTE+ (EU)
BrandSiretta
R 14,478.78
Each
units
2.6GHz 700 MHz - - - 76 x 36 x 141mm 200g +50°C -10°C 141mm 76mm SNYPER-LTE 36mm
RS stock no. 176-7071
Mfr. Part No.SNYPER-LTE GRAPHYTE
BrandSiretta
R 22,604.70
Each
units
1800 (2G) MHz, 2100 (3G & 4G) MHz 800 (4G) MHz, 900 (2G & 3G) MHz - - SMA Male 147 x 76 x 36mm 200g +50°C -10°C 36mm 147mm - 76mm
New
RS stock no. 202-4070
Mfr. Part No.SNYPER-LTEM GRAPHYTE (GL)
BrandSiretta
R 17,736.66
Each
units
2.3GHz 0.7 GHz - - - - - - - - - - -
RS stock no. 187-3714
Mfr. Part No.SNYPER-LTE+ SPECTRUM (EU)
BrandSiretta
R 17,239.50
Each
units
2.6GHz 700 MHz - - - 76 x 36 x 141mm 200g +50°C -10°C 141mm 76mm SNYPER-LTE Spectrum 36mm