Agilent 8471E
Coaxial RF Microwave Detectors
0.01 GHz – 12 GHz
Data Sheet
Features and Description
•
Zero bias
•
Environmentally rugged
•
SMA connector
The Agilent 8471E Detector is a
Planar Doped Barrier (PDB) detector
offering the characteristics of the
Agilent 8474 line of PDB detectors in
an economical package. It is available
with an SMA RF connector and an
SMC video connector.
The detector is designed for use in RF
and microwave instrumentation and
systems applications as the detecting
element in leveling loops, for power
monitoring and for wideband video
detection.
Output voltage (mV)
1000
100
10
1
0.1
0.01
–30
–20
50K Ω
1K Ω
200 Ω
30 Ω
100000
10000
Rv (Ω)
1000
100
10
–60
–20
0
20
60
Temperature (ºC)
100
–10
0
10
Input power (dBm)
20
Figure 1. Typical transfer characteristics
Figure 4. Typical video impedance
variation with temperature.
Tangential sensitivity (dBm)
–25
–30
–35
–40
–45
–50
–55
–60
10
3
10
4
Ta = –60
Amplifier NF = 3 dB
8 dB S/N ratio
Ta = 25 ºC
Ta = 100 ºC
% variation in dB from output @ –20 dBm RF input
10
5
0
–5
–10
2 GHz
8 GHz
12 GHz
10
5
10
6
Bandwidth (Hz)
10
7
0
2
4
6
8 10 12 14 16 18 20
RF power (dBm)
Figure 2. Typical tangential sensitivity
Figure 5. Typical square law deviation
4
Response (dB)
2
0
–2
–4
–6
50k Ω
10k Ω
1k Ω
0.1k Ω
–60 –40 –20 0 20 40 60 80 100
Temperature (ºC)
Figure 3. Typical output response with
temperature (P
IN
≤ 20 dBm).
Specifications
Frequency range:
0.01 - 12 GHz
Frequency responses:
±0.23 dB (0.01 - 4 Ghz); ±0.6 dB (4 - 8 GHz);
±0.85 dB (8 - 12 GHz)
SWR:
< 1.2 (0.01 - 4 GHz); < 1.7 (4 - 8 GHz); < 2.4 (8 - 12 GHz)
Low level sensitivity:
0.4 mV/µW
Max. operating input:
200 mW
Typical short-term max. input:
0.75 Watt
Noise:
< 50 µV
(µV peak-to-peak with CW power applied to produce 100 mV output, 400 kHz BW)
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United States
Asia Pacific
Australia
China
Hong Kong
India
Japan
Korea
Malaysia
Singapore
Taiwan
Thailand
Output polarity (STD):
negative
(003):
positive
Note: Above specifications are at 25 ºC and ≤ 20 dBm unless otherwise specified.
(877) 894-4414
305 269 7500
(800) 829-4444
1 800 629 485
800 810 0189
800 938 693
1 800 112 929
0120 (421) 345
080 769 0800
1 800 888 848
1 800 375 8100
0800 047 866
1 800 226 008
Environmental
Operating temperature:
–20º to +85 ºC
Non-operating temperature:
MIL-STD 883, Method 1010: (–55º to +85 ºC)
Vibration:
MIL-STD 883, Method 2007: (0.6” D.A. 20 to 80 Hz and 20 g,
80 to 2000 Hz)
Shock:
MIL-STD 883, Method 2002.1: (500 g, 0.5 ms)
Altitude:
MIL-STD 883, Method 1001: (50,000 ft, 15,240 m)
Moisture resistance:
MIL-STD 883, Method 1004.1: (25º to 40 ºC, 95% RH)
RFI:
MIL-STD 461C (meets Part 7, degraded by 10 dB)
Equivalent diode
R
v
, diode video
impedance
V
RF in
50 Ω
C
B
, RF bypass
capacitor
Video out
Europe & Middle East
Austria
01 36027 71571
Belgium
32 (0) 2 404 93 40
Denmark
45 70 13 15 15
Finland
358 (0) 10 855 2100
France
0825 010 700*
*0.125 €/minute
Figure 6. Equivalent circuit for Agilent 8471E with typical parameter values.
Typical values:
R
V
(diode video impedance) ≈ 1.5 kΩ
*
C
B
(RF bypass capacitor) ≈ 30 pF nominal
(R )(R )
T
R
(10 to 90% risetime) ≈ 2.2
LOAD V
(C
B
+ C
LOAD
) = 0.35
BW
R
LOAD
+ R
V
*
@ 25 ºC
is a
P
IN
≤ 20 dBm (see Figure
of
Microsoft
and
U.S. registered trademark
3)
Microsoft Corporation.
Germany
07031 464 6333
Ireland
1890 924 204
Israel
972-3-9288-504/544
Italy
39 02 92 60 8484
Netherlands
31 (0) 20 547 2111
Spain
34 (91) 631 3300
Sweden
0200-88 22 55
Switzerland
0800 80 53 53
United Kingdom 44 (0) 118 9276201
Other European Countries:
www.agilent.com/find/contactus
Revised: October 6, 2008
Agilent 8471E
A:
7.9 (0.31)
B:
39.16 (1.54)
C:
9.26 (0.36)
Connector:
SMA (m) input
SMC (m) output
Net weight:
38.8 grams (1.37 oz.)
RF connector
A
B
Video connector SMC
(male center conductor)
C
Product specifications and descriptions
in this document subject to change
without notice.
© Agilent Technologies, Inc. 2009
Printed in USA, February 17, 2009
5952-0802E
Figure 7. Agilent 8471E
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