Rohde & Schwarz simplifies measurement of radiated spurious emissions on LTE devices
Munich, Jan 30, 2012 - Manufacturers of wireless devices must measure the radiated spurious emissions (RSE) of their products to ensure that they will not interfere with other services. The conventional approach to measuring RSE is to filter out the high-level wireless communications signals. For the LTE standard, which uses 258 combinations of frequency bandwidths, this approach would involve tremendous cost and effort. Rohde & Schwarz now presents a significantly simpler solution that is easy on the budget – the new
Rohde & Schwarz is taking a completely new approach to measuring radiated spurious emissions on LTE devices, making it considerably easier for users to measure RSE in the presence of LTE carrier power. The solution is the
Standardization bodies such as the ITU or the European R&TTE specify tests for measuring RSE on wireless devices. Manufacturers perform these tests during development and final acceptance testing. With conventional wireless communications techniques, the high-level radio signal can be filtered out at reasonable effort to enable RSE measurements. On the other hand, LTE defines 43 frequency bands and can transmit – at full power – in six bandwidths in each band. Filtering out all LTE signals present in each band and bandwidth would involve tremendous effort, requiring a separate cabinet solely to accommodate the 258 filters needed to cover all frequency bandwidth combinations.
The Rohde & Schwarz solution requires only two height units in the control cabinet. The new
Rohde & Schwarz
Rohde & Schwarz is an independent group of companies specializing in electronics. It is a leading supplier of solutions in the fields of test and measurement, broadcasting, radiomonitoring and radiolocation as well as secure communications. Established more than 75 years ago, Rohde & Schwarz has a global presence and a dedicated service network in over 70 countries. It has approx. 8400 employees and achieved a net revenue of € 1.6 billion in fiscal year 2010/2011 (July 2010 to June 2011). Company headquarters are in Munich, Germany.
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