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Rohde & Schwarz |
Description
The R&S®SMU200A Vector Signal Genereator not only combines up to two independent signal generators in one cabinet of only four height units, it also offers unrivalled RF and baseband characteristics. The genetator has been designed to meet all requeriments encoutered in research and development of modern communication systems as well as in their production.
Key Facts
Characteristics
THe vector Signal Generator R&S®SMU200A has been designed to meet all requirements encountered in research and development of modem communication systems as well as in their production. The R&S®SMU200A not only combines up to two independent signal generators in one cabinet of only four height units, it also offers unrivalled RF and baseband characteristics.
Due to its modular desing, the R&S®SMU200A can be optimally adapted to the requirements of different applications. Thge first RF path can be equipped with one of the four available frequency options. The upper frequency limit of 2.2 GHz / 3 GHz / 4 GHz or 6 GHz is user-selectable. In addition, a second RF path can be installed with upper frequency limits of 2.2 GHz and 3 GHz the lower frequency limit of all frequency options is 100 kHz.
Up to two generators can also be installed in the baseband section. They generate complex signals in realtime and are equipped with an arbitrary wavefrom generator with up to 128 Msample memory for I and Q (512 Mbyte). The signels generated in the different basebands can be added. Frequency offset of the individual signals is possible. The optional internal fading simulator provides up to 40 fading paths for simulating multipath propagation.
The R&S®SMU200A can be fitted with a wide range of options - for example, options for all of todays important digital standards as well as function and performance enhancements such as MINO fading or phase coherence.For a list of all available options as well as links to detailed information about the individual options, see "ordering information".
The modern, intuitive concept of the R&S®SMU200A ensures fast and easy operation.
Two signal generators in one
Outstanding signal quality
Unrivaled flexibility
Intuitive operation
Ideal for production
Connectivity
Features
Intuitive operation
The R&S®SMU200A is equipped with a modem and intuitive user interface. The signal flow from the baseband to the RF output is clearly shown in the block diagram. Each block represents a functional unit the instrument. The generated signal can be seen at a glance, and whether it is affected by additive white Gaussian noise and/or fading.
Outstanding signal quality
Owing the sophisticated multiloop synthesizer concept, the R&S®SMU200A features extremely low SSB phase noise and wideband noise. A high-stability oven-controlled reference oscillator is installed as standard, which provides excellent aging characteristics as well as minimum temperature drift. The R&S®SMU200A is ideal, for instance, for LO or VCO substitution.
Amplifers of 3GPP base stations require very good adjacent channel leakage ratio (ACLR) performance in order not to impeir the adjacent channels of the transmission. To test feature, the ACLR characteristics of the signal generator must be better than those of the amplifier. Presently, multicarrier power amplifiers are increasingly used. In this case, not only one but several neighbouring signals in the frequency range are amplified. Testing such amplifiers even higher demand on signal generator capabilities, The outstanding ACLR characteristics of the R&S®SMU200A more than qualify the generator for this task.
Unrivalled flexibility
The stendards of the third mobile radio generation set considerably higher demands are the instrument of choice particularly when base stations are tested. The universal coder in the baseband generator of the R&S®SMU200A has been designed for easy implementation of new standards. The R&S®SMU200A is therefore well prepared for present and future mobile radio standards.
Up to two signal generators in one
All the strenghts of the two-path concept of the R&S200A become especially evident in the field of mobile radio. Since the baseband section of the R&S®SMU200A is fully digital, the signals of the two baseband
generators can be easily added without synchronization problems and without an extarnal coupler or or additional equipment being required. A frequency offset and the relative power of each signal can be accurately set.
For receiver tests in multicarrier base stations with complex interfering signals, one baseband generator can produce the test signal to be evaluated. The second baseband generator produces a suitable multicarrier signal to be used as the background signal. Two transmit antennas (the transmit diversity) of a base station can also be simulated. Up to now, two signal generators have been required in this case, but only one instrument is needed when the R&S®SMU200A is used.
Ideal for production
Short turnaround times and short test times are important particularly for automatic test sequences in production. Short setting times of a signal generator mean money in hand. The R&S®SMU200A with its very short frequency setting time of <2 ms meets all requirements. In the List mode, where frequency variations have previously been stored in a list, the setting time is reduced to <450 µs. A built-in electronic attenuator ensures wear-and-tear-free switching. This prevents down-times for replacing mechanical attenuators.
Connectivity