SFD-603903-12SF-N1

Rev. 1.1

Description:
Model SFD-603903-12SF-N1 is an E Band amplitude detector that canbe used for full or narrow band applications. The detector is zerobiased and intended for small signal detection purposes. With adistinct circuitry design and careful diode selection, the detector
exhibits high sensitivity and extremely flat output characteristics
across the full waveguide operating bandwidth. The detector isdesigned to have a 10 MHz video bandwidth and a 1 MΩ video
output impedance. The minimum detectable signal level isapproximately -50 dBm. On the other hand, the return loss of this type of detector is poor in general.
The model STD-12SF-NI is recommended if the high return loss is desired.

Features:•••

Applications:

Broad or Narrow Band Operation
High Sensitivity Without Tuning
High Sensitivity Stability Over Broad Temperature
Range•••

Radar Systems
Communication Systems
Test instrumentations

Electrical Specifications:Parameter
Frequency
Sensitivity*
Sensitivity Flatness
RF Input PowerRF Power HandlingVideo Bandwidth
Detection Speed, Raise Time (50 Ohm Load)
Output Voltage Polarity
Specification TemperatureOperating Temperature

Minimum
60 GHzTypicalSAGE Millimeter, Inc.

E-Band Amplitude Detector, Small Signal, Negative

Maximum
90 GHz

900 mV/mW±2.0 dB-20 dBm+17 dBm
10 MHz
5 Nano Second
Negative+25 ˚C-40 ˚C+85 ˚C*Note: The sensitivity is for the input signal level -20 dBm or below.

Mechanical Specifications:
Item
RF PortDC PortCase Material
FinishWeight
OutlineSpecification
WR-12 Waveguide with UG-387/U Flange
SMA (F)
AluminumGold Plated
0.4 OzFD-E1

www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2018 by SAGE Millimeter, Inc.

Page | 1

SFD-603903-12SF-N1Rev. 1.1

Typical Performance vs. Frequency
Pin= -20 dBm
100000Sensitivity (-mV/mW)

10000

1000

100

10160657075808590Frequency (GHz)

SAGE Millimeter, Inc.

E-Band Amplitude Detector, Small Signal, Negative

Typical Detected Voltage vs. Input Power-180-160-14060 GHz

V out (mV)

-12075 GHz90 GHz-100-80-60-40-200-25-20-15Input Power (dBm)-10-5www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2018 by SAGE Millimeter, Inc.

Page | 2

SFD-603903-12SF-N1

Rev. 1.1

Typical Return Loss vs. Input Frequency
20-2

Return Loss (dB)

-4-6-8-10-12-14-1660

62

64

66

68

70

72

74

76

78

80

82

84

86

88

90

SAGE Millimeter, Inc.

E-Band Amplitude Detector, Small Signal, Negative

Frequency (GHz)

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches)www.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.comCopyright © 2018 by SAGE Millimeter, Inc.

Page | 3

SFD-603903-12SF-N1

Rev. 1.1

Note:
•••
•
•

All data presented is collected from a sample lot. Actual data may vary unit to unit.
All testing was performed under +25 ˚C case temperature.
The positive output voltage polarity is offered under the model number SFD-603903-12SF-P1.
The amplitude detector is a small signal detector. The sensitivity shown is for RF signal -20 dBm
or lower.
SAGE Millimeter, Inc. reserves the right to change the information presented without notice.

Caution:••••Exceeding absolute maximum ratings will damage the device.
The device is static sensitive. Always follow ESD rules when working with the device.
Any foreign objects in the waveguide will cause performance degradation and can possibly
damage the device.
Proper torque, 8.0 ± 0.15 inch-pounds (0.92 ± 0.05 Nm), should be applied. SAGE Millimeter
torque wrench, model SCH-08008-S1, is highly recommended.

SAGE Millimeter, Inc.

E-Band Amplitude Detector, Small Signal, Negativewww.sagemillimeter.com | 3043 Kashiwa Street, Torrance, CA 90505
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: sales@sagemillimeter.com
Copyright © 2018 by SAGE Millimeter, Inc.

Page | 4