Agilent Technologies E6640A EXM Uživatelský manuál stáhnout pdf (Strana 53)

WLAN MIMO Test in Manufacturing

Composite MIMO

• Calculating some MIMO metrics from a ‘combined channel’ capture of

a specially coded set of waveforms

- The DUT transmits a special waveform on each MIMO channel

- The antenna connections at the DUT are passed through an external

combiner, then the combined signal passes into a single RFIO port in the

tester

- Once synchronised to the special waveforms, the tester reprocesses the

combined signal, producing a limited set of pseudo ‘MIMO’ metrics

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Agilent Technologies E6640A EXM Uživatelský manuál Strana 53