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High-Frequency ATCA Wideband Interferometry System Development

Explore the capabilities of the ATCA Wideband Continuum System for high-frequency interferometry operations. Benefit from wide bandwidths, new optical technologies, and advanced analogue correlator development. AMiBA collaboration enhances research opportunities.

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High-Frequency ATCA Wideband Interferometry System Development

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  1. ATCAWideband Continuum Operation Few-GHz bandwidth interferometry

  2. Wide bandwidths available from the new high frequency receivers. • Up to 8GHz bandwidth at 12mm and 3.5mm. • New single mode optical fibres provide means to transfer wideband signals. • Analogue optical links up to ~20GHz. • Wideband analogue correlator development. • AMiBA collaboration.

  3. ATCA Wideband Continuum System Signal Path

  4. Analogue Lag Correlator

  5. Prototype Analogue Lag Correlator

  6. Lag Correlator - CW Measurements

  7. Frequency Response - Amplitude

  8. Phase Response - Assumes tap spacing = l/4 at 4GHz

  9. Phase Response - Assumes tap spacing = l/4 at 3.86GHz

  10. Lag Correlator - Noise Measurements

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