Datasheet
- 4 -
Revision: April 2008
Satori Technology Limited
1 Biggar Business Park
Market Road
Biggar
Lanarkshire
ML12 6FX
+44 (0) 1899-229258
(Office hours, GMT)
sales@satori-technology.com
support@satori-technology.com
www.satori-technology.com
ST Series Schottky Diode CW USB Power
Sensor ST185SMA
Frequency 10MHz to 18.5GHz
Measurement range -50 to +20dBm CW
Operating Temperature 0 to 50 deg C
Shock 25G, 11 ms
Vibration 15G, 100 to 2000Hz
Linearity error
25 +/- 5 deg C
+/-0.26 dB; -40dBm to +10dBm; 50MHz ≤ f ≤ 12.4GHz
+/-0.46 dB; +10dBm to +20dBm; 50MHz ≤ f ≤ 12.4GHz
+/-0.57 dB; -40dBm to +10dBm; 12.4 GHz < f ≤ 15
GHz
+/-0.44 dB; +10dBm to +20dBm; 12.4 GHz < f ≤ 15
GHz
+/-0.87 dB; -40dBm to +10dBm; 15 GHz < f ≤ 18.5GHz
+/-0.66 dB; +10dBm to +20dBm; 15 GHz < f ≤
18.5GHz
+/-0.43 dB; -40dBm to +10dBm; f < 50 MHz
+/-1.46 dB; +10dBm to +20dBm; f < 50 MHz
Linearity variation
25 +/- 25 deg C
+/-0.5 dB; 50MHz ≤ f ≤ 18.5GHz
+/-0.7 dB; 10 MHz ≤ f < 50MHz
Cal factor error
25 +/- 5 deg C
+/-0.17 dB; 10 MHz < f < 18.5 GHz
Cal factor variation
25 +/- 5 deg C
±0.45 dB; f ≥ 50MHz
±0.67dB; f < 50MHz
Zero set +/-1.8 nW
Noise 0.15 nW RMS
Input SWR - max 1.2:1
Measurement Speed
-50 to -35 dBm
-35 to -20 dBm
-20 to +20 dBm
8 measurements per sec
33 measurements per sec.
50 measurements per sec.
Max input power
(damage level)
200mW CW (+23dBm)
Connector type SMA (m)
Connectivity USB 2.0 (cable length up to 5m)
USB power supply current Approx. 50mA
Sensor Cable Length (std) 193cm
Dimensions (max) 34H x 43W x 125L (mm)
Weight 83 grams
Specifications include expanded uncertainty of measurement stated as the standard
uncertainty of measurement multiplied by the coverage factor k=2 which corresponds to a
coverage probability of approximately 95% for a normal distribution.
Specifications subject to change – contact Satori Technology for latest information.
Thurlby Thandar Instruments Ltd.
Glebe Road, Huntingdon, Cambridgeshire
PE29 7DR England (United Kingdom)
Tel: +44 (0)1480 412451
Fax: +44 (0)1480 450409
Email: info@tti-test.com
Web: www.tti-test.com





