RFN25KU [MICRONETICS]
FULLBAND CALIBRATED MICROWAVE NOISE SOURCES; 富邦CALIBRATED微波噪声源型号: | RFN25KU |
厂家: | MICRONETICS, INC. |
描述: | FULLBAND CALIBRATED MICROWAVE NOISE SOURCES |
文件: | 总3页 (文件大小:295K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Return to Noise Index
http://www.micronetics.com/Noise_Source/Coaxial_Waveguide.pdf
F
ULLBAND
CALIBRATED
M
ICROWAVE
NOISE
S
OURCES
L, S, C, X, K
U
, K, K
A
BANDS
1 GHZ TO 40 GH
Z
D
ESCRIPTION
Micronetics' line of full band noise
sources are specially designed for easy
integration into microwave systems.
They feature rugged construction with
excellent long-term stability.
BANDS:
• L
• S
• C
• X
• Ku
• K
Configurable to your requirements:
Micronetics full band noise sources are
based on a coaxial design as the base
part. As standard options, noise
sources can be ordered with either
• Coaxial Isolator
• Ka
• Waveguide Output
• Waveguide Isolator
Each noise source is calibrated to the
output port so no external deembedding
of calibration data is necessary. In addi-
tion to the RF output choices, there are
also different packages available to
meet a wide range of mechanical con-
straints.
FULLBAND OUTPUT CHARACTERISTICS
FOR USE IN SYSTEMS
MODEL
FREQUENCY
RF OUTPUT
EXCESS NOISE
RATIO (dB)
STYLE
CODES
RFN25L
1.0 to 2.0 GHz
30(MIN) N,N1 Q, X, W, Y
30(MIN) N,N1 Q, X, W, Y
25(MIN) N,N1 Q, X, W, Y
25(MIN)
25(MIN)
25(MIN) N,N1 Q, X, W, Y
25(MIN) N,N1 Q, X, W, Y
25(MIN)
RFN25S
RFN25C
RFN25C1
RFN25C2
RFN25X *
RFN25Ku
RFN25K
NS2640
2.0 to 4.0 GHz
4.0 to 8.0 GHz
3.95 to 5.85 GHz (waveguide only)
5.85 to 8.20 GHz (waveguide only)
8.0 to 12.4 GHz
12.4 to 18.0 GHz
18.0 to 26.5 GHz
26.5 to 40 GHz
N,N1 X, Y
N,N1 X, Y
S
PECIFICATIONS
o
■
■
■
■
■
■
Operating Temp: -55 to +95 C
o
Storage Temp:
Supply Voltage:
Temp Stability:
-65 to +125 C
Y
+15 , +28 VDC
o
14 to 20 dB
See Chart
0.01 dB/ C
*
waveguide frequency is 8.2 to 12.4 GHz
Ouput Impedance: 50 ohm
R
UGGED/STABLE
D
ESIGN
:
Peak Factor:
AVEGUIDE
5:1
The heart of these noise sources is a small chip and wire hermetic noise module.
This is embedded in the housing with a precision launch to the coaxial jack. This
design gives is much more stable and rugged than traditional coaxial noise sources
which rely on pill packaged diodes and beryllium copper bellow assemblies which are
not only are less reliable, but use hazardous materials.
W
C
HART
Model
Frequency
Waveguide
WR-187
WR-137
WR-90
RFN25C1 3.95 to 5.85 GHz
RFN25C2 5.85 to 8.20 GHz
RFN25X
8.20 to 12.4 GHz
RFN25Ku 12.4 to 18.0 GHz
WR-62
WR-42
WR-28
C
ALIBRATION AND
Q
UALITY
A
SSURANCE
:
RFN25K
NS2640
18.0 to 26.5 GHz
26.5 to 40.0 GHz
Each noise source is accurately calibrated using a reference noise source traceable
to NIST/NPL Calibration data consists of 5 calibration points across the full-band.
Data is supplied as a print out. Special calibration data can also be supplied upon
request (consult factory). Standard choices are:
• More calibration points across the spectrum
• Special discrete calibration frequencies
• Data supplied in soft format as screen capture or text file on floppy
or CD-ROM.
In addition to the calibration data, a certificate of calibration and a certificate of con-
formance is supplied with each unit.
MICRONETICS / 26 HAMPSHIRE DRIVE / HUDSON, NH 03051 / TEL: 603-883-2900 / FAX: 603-882-8987
WEB: WWW.MICRONETICS.COM
http://www.micronetics.com/Noise_Source/Coaxial_Waveguide.pdf
FULL
BAND
MICROWAVE
NOISE
SOURCES
L, S, C, X, K
U
, K, K B
A
ANDS
U
SING
N
OISE FOR
B
UILT
-
IN-TEST
H
OW TO
O
RDER
There are three primary uses for employing a noise signal for built-in-test.
R F N 2 5 X - X X X
Model
1. Noise Temperature (noise figure) or Sensitivity Testing:
This test uses the noise source to supply a known excess noise ratio
(ENR) to a device under test for a Y-factor measurement. By taking two
receiver readings, one with the noise on and one with it off, Y-factor can
be determined. By knowing the ENR and Y-factor, one can calculate
noise temperature (figure) or sensitivity.
* waveguide not
available on S
and L models
L = L band *
S = S band *
C = C band
C1 = C band
C2 = C band
X = X band
Ku = Ku band
K = K band
Ka = Ka band
2. Frequency Response: The noise source being broadband
can be used as a replacement of a swept source to calculate frequency
response of a receiver or other device. By putting in a known spectral
signal at the input and taking a reading at the output, one can determine
the gain or loss over frequency of the entire system. Noise sources are
inherently extremely stable devices. In addition, the circuitry is much
simpler than a swept source which increases reliability and lowers cost.
Package
N = N package
Q = Q package
X = X package
Y = Y package
3. Amplitude Reference Source: The noise source can be
used as a known reference signal. By switching in the noise source from
the live signal, a quick test can be performed to check the health of the
chain or calibrate the gain/loss. For this test, noise can be injected into
the IF system as well as the RF to test/calibrate the path.
Option
0 = Plain
1 = Coax Isolator
2 = Waveguide
3 = Waveguide Isolator
For more information on using noise for built-in-test, read the Feb 2004
Microwave Journal article authored by Patrick Robbins of Micronetics.
http://www.micronetics.com/articles/microwave_journal_02-04.pdf
Bias Voltage
A = +28V
B = +15V
N S 2 6 4 0 - X X X
U
SEFUL
N
OISE
E
QUATIONS
Calculating Y-Factor:
= N / N Where N is measured power output with noise
Y
Package
2
1
2
Fact
A = Lug package
B = BNC package
source on and N is the measured power output with noise source off.
1
Calculating Noise figure from ENR and Y-factor:
NF(dB) = ENR (dB) - 10 log10 (Y
-1)
Fact
Option
1= Coax Isolator, 2.92 mm (f)
2= Coax Isolator, 2.92 mm (m)
3= Waveguide
Converting ENR to Noise spectral density (N ):
0
0 dB ENR = -174 dBm/Hz
4= Waveguide Isolator
5= Plain, 2.92 mm (f)
6= Plain, 2.92 mm (m)
Calculating noise power in a given bandwidth (BW) from noise
spectral density:
Power (dBm) = N + 10log(BW)
0
Bias Voltage
A = +28V
B = +15V
NS2640 26.5 TO 40 GH
Z
PAhtKtp:A//wGwwIN.mGicronetics.com/Noise_Source/Coaxial_Waveguide.pdf
O
PTIONS
Outline Dwg
Bias Connector
Lug
Bias Voltage RF Output Type
Coax Isolator, 2.92mm (F) Connector
NS2640-A1A-70
NS2640-A2A-70
NS2640-A3A-70
NS2640-A4A-70
NS2640-A5A-70
NS2640-A6A-70
NS2640-B1A-70
NS2640-B2A-70
NS2640-B3A-70
NS2640-B4A-70
NS2640-B5A-70
NS2640-B6A-70
NS2640-A1B-70
NS2640-A2B-70
NS2640-A3B-70
NS2640-A4B-70
NS2640-A5B-70
NS2640-A6B-70
NS2640-B1B-70
NS2640-B2B-70
NS2640-B3B-70
NS2640-B4B-70
NS2640-B5B-70
NS2640-B6B-70
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+28 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
+15 Vdc
Lug
Lug
Lug
Lug
Coax Isolator, 2.92mm (M) Connector
Waveguide
Waveguide Isolator
Plain, 2.92 mm (M) Connector
Plain, 2.92 mm (F) Connector
Coax Isolator, 2.92mm (F) Connector
Coax Isolator, 2.92mm (M) Connector
Waveguide
Lug
BNC (F)
BNC (F)
BNC (F)
BNC (F)
BNC (F)
BNC (F)
Lug
Lug
Lug
Lug
Lug
Waveguide Isolator
Plain, 2.92 mm (M) Connector
Plain, 2.92 mm (F) Connector
Coax Isolator, 2.92mm (F) Connector
Coax Isolator, 2.92mm (M) Connector
Waveguide
Waveguide Isolator
Plain, 2.92 mm (M) Connector
Plain, 2.92 mm (F) Connector
Coax Isolator, 2.92mm (F) Connector
Coax Isolator, 2.92mm (M) Connector
Waveguide
Waveguide Isolator
Plain, 2.92 mm (M) Connector
Plain, 2.92 mm (F) Connector
Lug
BNC (F)
BNC (F)
BNC (F)
BNC (F)
BNC (F)
BNC (F)
Please consult factory for models without active links to drawings. Tel: 603-883-2900 x346 or email
noisesales@micronetics.com
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