This website requires cookies to provide all of its features. By using our website, you agree to our use of cookies - Learn more - Hide this message
  • Home
  • Planar-Doped Barrier Detectors

Planar-Doped Barrier Detectors

Planar-Doped Barrier Detectors


Agilent 8471D and 8471E detectors are planar-doped barrier detectors offering excellent performance to 2 and 12 GHz. The 8471D covers 100 kHz to 2 GHz with a BNC (m) input connector and the 8471E covers 10 MHz to 12 GHz with a SMA (m) input connector. Both detectors come standard with negative polarity output, a positive polarity output is available with option 103.

 

High Performance Planar-Doped Barrier Detectors


8474B/C/E detectors are the newest additions to the Agilent family of high performance detectors. Utilizing a gallium arsenide, planar-doped barrier detecting diode, these detectors offer superior performance  when compared to Schottky diodes. They feature extremely flat  frequency response (typically better than ±1 dB to 50 GHz) and very stable frequency response versus temperature.

 

These detectors are available with type-N, 3.5-mm, or 2.4-mm connectors. They are also offered with an option for positive output polarity (Option 103). Additionally, some detectors have an optimal square law load available (Option 102).

 

For applications requiring an octave band or less, 8474B/C/E detectors are available with frequency band options that feature lower SWR and flatter frequency response.

 

Specifications

 

Model 8471D 8471E 8473D 8474B 8474C 8474E
Frequency Range (GHz) 0.0001 to 2 0.01 to 12 0.01 to 33 0.01 to 18 0.01 to 33 0.01 to 50
Frequency Response
(dB)
±0.2 to 1 GHz
±0.4 to 2 GHz
±0.23 to 4 GHz
±0.6 to 8 GHz
±0.85 to 12 GHz
±0.25 to 14 GHz
±0.4 to 26.5 GHz
±1.25 to 33 GHz
(±2.0 dB typical to 40 GHz)
±0.35 to 18 GHz ±0.45 to 26.5 GHz
±0.7 to 33 GHz
±0.4 to 26.5 GHz
±0.6 to 40 GHz
±1.0 to 50 GHz
Max SWR 1.23 to 1 GHz
1.46 to 2 GHz
1.2 to 4 GHz
1.7 to 8 GHz
2.4 to 12 GHz
1.2 to 14 GHz
1.4 to 26.5 GHz
3.0 to 33 GHz
(3.0 typical to 40 GHz)
1.3 to 18 GHz 1.4 to 26.5 GHz
2.2 to 33 GHz
1.2 to 26.5 GHz
1.6 to 40 GHz
2.8 to 50 GHz
Low-level
Sensitivity

(mV/μW)
> 0.5 > 0.4 > 0.4 > 0.4 > 0.4
> 0.34 to 50 GHz
> 0.4 to 40 GHz
Max Operating
Input Power
100 mW 200 mW 200 mW 200 mW 200 mW 200 mW
Typical Short
Term Max

Input Power (<1min)
0.7 W 0.75 W 1 W 0.75 W 0.75 W 0.75 W
Video Impedance (nom) 1.5 kΩ 1.5 kΩ 1.5 kΩ 1.5 kΩ 1.5 kΩ 1.5 kΩ
RF Bypass
Capacitance

(nom)
6800 pF 30 pF 30 pF 27 pF 27 pF 27 pF
Output
Polarity
Negative Negative Negative Negative Negative Negative
Input Connector BNC (m) SMA (m) 3.5 mm (m) Type-N (m) 3.5 mm (m) 2.4 mm (m)
Output Connector BNC (f) SMC (m) BNC (f) BNC (f) SMC (m) SMC (m)