Tek adds UWB analysis to its high-performance scopes

Tektronix UWB software extends the debug and analysis capabilities of the company's DPO/DSA70000 oscilloscopes to include real-time analysis of Ultra Wideband RF and electrical signals.

The DSA70000 series Digital Signal Analyzers using DPX waveform image processing and Pinpoint triggering help the engineer discover and capture the time and amplitude variations of these signals.

Tektronix real-time spectrograms for ultra-wideband signals spanning the full single shot bandwidth of the DSA70000 show the behavior of ultra-wideband signals over time from a single captured record.

Analysis can be done across the captured record, up to 200M memory at 50 GS/s on all four channels. Using capabilities such as time gating and packet finder, an engineer can analyze the intended signal that may be separated by time, power spectrum or frequency from other traffic.

Power spectral density is captured to 20 GHz with a single 50 GS/s acquisition but is analyzed across that acquisition with 5 MHz resolution bandwidth for a familiar spectrum analyzer-like display.

For WiMedia UWB radios using MB-OFDM technology for Certified Wireless USB, Bluetooth 3.0, WiNet and Wireless "Fire Wire" (1394) applications, Tektronix UWB goes far beyond general purpose demodulation automatically reading the digital information from the RF waveform to determine the demodulation method on a packet-by-packet basis.

By automatically reading the digital information from the RF waveforms, Tektronix UWB determines which demodulation method is used, the pass/fail test limits and constellation type which is displayed. Detection and analysis is done on each packet from the RF content, greatly simplifying setup and speeding analysis and compliance tests.

Analysis is performed in all six band groups (3.1 GHz-10.6 GHz) for all 10 time frequency codes (hopping patterns or channels), and for all eight data rates. The RF channel is corrected using the pilot tones in each packet within the optionally specified time gate.

RF signal quality measurements including EVM (error vector magnitude), spectral mask testing and ACPR are analyzed using the methods agreed upon by WiMedia for key compliance based measurements.

Modulation results from each analysis are recorded for easy export. Results include the time of the test, the channel, reference waveform or waveform file analyzed, the individual packet in the record analyzed, the number of data symbols analyzed in that packet, the band group of the RF signal analyzed, the time frequency code of the signal, the EVM, and EVM peak.

Also recorded are the results of the six ACPR. tests within the band group and the number of spectral test hits inside the band group. Spectral mask hits outside the band group across the single shot bandwidth of the oscilloscope (e.g. DC to 20 GHz) are also recorded.

With up to 20 GHz bandwidth on all four channels simultaneously, 50 GS/s on all four channels, up to 200M memory on all four channels, and more than 300,000 waveforms captured per second, the DSA70000 are the fastest four-channel real-time oscilloscopes and offer more performance than any competing alternative. The DSA70000 models include 12.5 GHz, 16 GHz, and 20 GHz versions.

Tektronix UWB software is available for order and delivery. U.S. MSRP is $7,000.

More information is available at http://www.tek.com/site/ps/0,,61-20587-INTRO_EN,00.html .