ASIAA The Yuan Tseh Lee Array (formerly AMiBA)
Home \ Instrumentation \ Correlator

AMiBA Correlator

A lag correlator has been implemented using analog multipliers to provide large bandwidth. Broadband IF distribution, back-end signal processing, and control are also constructed. From observations, an effective bandwidth of around 10 GHz has been shown to provide sufficient sensitivity for cosmic microwave background detection. (Li CT et al. 2010)

The 4- lag correlator module. The power dividers and multipliers can be seen.

Monolithic Microwave Integrated Circuit (MMIC) IF amplifier and power divider used in the correlator IF distribution.

The readout board utilizing discrete Analog-Digital Converters (ADC) and Field Programmable Gate Arrays (FPGA) for the 13-element array

AMiBA Correlator System

Click to open the poster