Title :
A wideband analog continuum correlator for radio astronomy
Author_Institution :
Owens Valley Radio Obs., California Inst. of Technol., Pasadena, CA, USA
fDate :
12/1/1994 12:00:00 AM
Abstract :
Design details for a 1-GHz bandwidth analog continuum cross-correlator for the Owens Valley Millimeter Array are presented. The correlator uses a pair of microwave mixers fed in phase quadrature to realize a complex multiplier for each baseline in the array. Very fast 180° phase switching is included to reject spurious signals
Keywords :
analogue processing circuits; correlators; microwave mixers; millimetre wave devices; radioastronomical techniques; 1 GHz; Owens Valley Millimeter Array; complex multiplier; cross-correlator; microwave mixers; microwave multiplier; phase quadrature; phase switching; radio astronomy; spurious signals; wideband analog continuum correlator; Bandwidth; Correlators; Degradation; Delay; Extraterrestrial measurements; Passband; Power measurement; Radio astronomy; Voltage; Wideband;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
