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K-TS1 Datasheet(PDF) 10 Page - RFbeam Microwave GmbH

Part No. K-TS1
Description  RADAR TESTSYSTEM
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Maker  RFBEAM [RFbeam Microwave GmbH]
Homepage  https://www.rfbeam.ch/
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K-TS1 RADAR TESTSYSTEM
Datasheet
Application Notes
Typical Arrangement
The unit under test (UUT) is placed in front of the K-TS1 module with a distance of >30cm (in the
farfield). For frequency measurements, it is not necessary to shield the whole arrangement. For power
measurements, you should at least place a piece of K-band absorber on the groundplane (a wooden
table is best). Most reliable results you get, if there is much free room around the setting, or you place
the whole arrangement into a (wooden) chamber.
Pay attention to place the UUT in the correct polarization direction. Check this by rotating the UUT by
90Ā° into the position, where K-TS1 shows maximum power.
Fig. 11: Typical arrangement of a test-stand
Determinating UUT Tx Power (EIRP)
K-TS1 shows effective power arriving at its Rx antenna. To determine the effective radiated power by
the UUT, we have to respect the attenuation of power over the distance d according to Fig. 12.
Example:
UUT distance d = 30cm. K-TS1 is set to display power in loop mode ('l=1').
Reading from K-TS1:
-35.3dBm
Adding path loss from Fig. 12: + 50dB
---------------
--> Radiated EIRP from UUT:
+ 14.7dBm (=30mW)
Fig. 12: Power attenuation over distance @24GHz
Ā© RFbeam Microwave GmbH www.rfbeam.ch
2011-03-11
Page 10/13
40
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60
70
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
Distance [m]
D = 32.44dB + 20*log f + 20*log d
15VDC
d > 0.3m
UUT
(Transceiver)
K-TS1
Absorber
USB
Table




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