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Signal generators claim leading ACLR performance

Posted: 11 Sep 2006     Print Version  Bookmark and Share

Keywords:signal generator  Agilent  MXG  communications test  W-CDMA test 

MXG signal generatorsAgilent Technologies has introduced the MXG series signal generators feature the adjacent channel leakage ratio (ACLR) performance at -65 dBc (-69 dBc measured) for a 4-carrier 3GPP W-CDMA signal, and -71 dBc (-76 dBc measured) for a single-carrier signal. This performance allows for greater test margins making the signal generators suitable for characterising high dynamic-range components, such as multi-carrier power amplifiers (MCPAs).

The company claims the signal generators provide the fastest switching speeds available on the market today, enabling a dramatic increase in throughput. With SCPI programming, the generators can make arbitrary switches in frequency and amplitude at s1.2 ms. In list mode, simultaneous switching of frequency, amplitude and waveforms takes place at s900µs.

Typical onsite calibration can be performed in less than one hour and requires only a spectrum analyser and power meter. With 100-per cent internal diagnostic capability and a simple design consisting of five field-replaceable assemblies, the average Agilent MXG repair time is 30 minutes with no calibration required.

"With its exceptional levels of performance and fast switching speeds, we expect the MXG to fully support the needs of engineers working on components for cellular communications and wireless connectivity systems," said Shankar Roy Chowdhury, general manager, Marketing (T&M), Agilent India.

The MXG analogue signal generator provides reference signals for applications like LO and clock substitution, CW interferers, and modulated signals for analogue communication systems such as AM, FM, and ΦM. The MXG vector signal generator provides the vector-modulated signals necessary to produce components for cellular communications and wireless connectivity systems.

The Agilent MXG vector signal generator works with Agilent's proven Signal Studio software to simplify standard-based waveform creation. Signal Studio's 3GPP W-CDMA software includes the latest revisions for HSUPA and HSDPA. Its mobile WiMAX software complies with the latest revision to the IEEE 802.16e-2005 standard. Other standards-based Signal Studio software supported includes cdma2000/1xEV-DO, GSM/EDGE, TD-SCDMA and 802.11 WLAN.

The Agilent MXG signal generators are fully compliant with the LXI class-C specification and are part of the Agilent Open programme, which simplifies test-system setup and integration by offering instruments based on open industry standards. Agilent MXG connectivity is possible via 100 based-T LAN, GPIB and two USB 2.0 ports. LXI is the next-generation, LAN-based modular architecture standard for automated test systems.

- By Vivek Nanda
  EE Times India

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