Keysight Technologies M9703A Startup Manual

Also see for E8257D: Service guide Configuration guide Installation guide Installation note Installation note

Keysight Technologies M9703A Startup Manual Manual pdf 9 page image

Multi-Channel Antenna Calibration (MAC) IntroductionKeysight Y1299A-003 MAC Reference Solution Startup Guide 9Multi-Channel Antenna Calibration (MAC) IntroductionSmart antenna architectures incorporating multiple antenna elements in an array areused in many applications. Wireless communications standards like 802.11ac, radioastronomy and array RADARs are all examples of applications where multipleantennas are employed for various requirements derived from spatial signalprocessing. Though the types of processing used and beamforming techniques differby application, there is a common test challenge. It is difficult to align the antennas inan array in phase and amplitude so they can be used together effectively. As thenumber of antennas increase in an array, the test time to do the alignment increasesdrastically.This reference solution is built from modular components and is easily scalable to thenumber of antennas in the array being tested.Further, it provides parallelism to thetest process to increase test throughput. The reference system described, offersflexibility to provide good sensitivity in both the wideband and narrowbandmeasurement scenarios using the same hardware.Typical System PerformanceFeature ValueNumber of Digitizer Channels 8 to 104 depending on configurationMeasurement Throughput 1M narrowband measurements per second (40 chan-nels)Phase Coherence <1 degree across all channelsNon-decimated Bandwidth 600 MHzDecimated Frequency Span (DDC) 300 MHz and 160/2n MHz (n=0,1,2, … 18)Measurement Frequency Range DC – 40 GHz depending on down converters used(extended to 50GHz with additional calibration con-siderations)Spurious Free Dynamic Range 60 dBc (typical) (non-decimated)80 dBc (typical) (30MHz decimated)Effective Number of Bits 8.8 (typical)Acquisition Memory Up to 1 GSa/chThroughput Use the N5193A when you require fast switchinf andphase coherency. 100 μs switching speed standard;optional 1 μs and 250 ns