UWB Emission Description

0086-EX-ST-2004 Text Documents

The MITRE Corporation

2004-03-03ELS_65078

UbiTag v0.1 UWB component parameters
Andy Ward
Ubisense Limited
3rd March 2004

This information relates to the UWB component of the UbiTag v0.1 device.

The device is a pre-production prototype of an ultra-wideband unit which will be used indoors.

The device has the following UWB parameters:

-10dB bandwidth (measured): 2.784GHz
Frequency of highest radiated emission: 4.932GHz
-10dB band lower boundary f(H): 4.704GHz
-10dB band upper boundary f(L): 7.488GHz
Centre frequency f(C)=(f(H)+f(L)/2): 6.096GHz

Peak ERP (theoretical/calculated): 2 milliwatts (+3dBm)

Peak EIRP (measured): 0.35 milliwatts (-4.5dBm)

Average (RMS) EIRP across occupied bandwidth (measured): 1.26 microwatts (-29dBm)

Pulse Repetition Frequency (PRF): 12MHz

The raw data from which the measured values are derived was captured by the UK
Radiocommunications Agency on 27/10/03, and is contained in attachments to this application
(named “Measurements271003.txt” and “measurements.xls”).

Andy Ward
Chief Technology Officer
Ubisense Limited

andy.ward@ubisense.net
+44 (0)1223 448168 (W)
+44 (0)7732 169046 (M)
+44 (0)1223 448167 (Fax)

Document Created: 2004-03-03 13:16:20
Document Modified: 2004-03-03 13:16:20

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