This paper presents the design, implementation, and the experimental verifications of a 2.4-GHz multibeam array receiver based on two-dimensional (2-D) spatially bandpass (SBP) digital plane wave (PW) filters. The digital array receiver consists of 2.4-GHz 16-element uniform linear array, and quadrature sampling is employed to process the broadband PWs at the baseband. Both 2-D finite impulse response (FIR) and infinite impulse response (IIR) digital filters having multiple trapezoidal-shaped passbands are employed as the 2-D SBP digital PW filters. Both 2-D FIR and IIR trapezoidal filters are implemented on a Xilinx Virtex 6 sx475t field programmable gate array chip that comes with the reconfigurable open architecture computing hardware version-2 (ROACH-2) platform. The 16 in-phase and quadrature-phase downconverted signals are sampled using the ROACH-2 platform and are processed using the digital architectures to form multiple beams. Example radio-frequency beam patterns corresponding to each filter architecture are measured and reported. The main lobes of the measured multibeam patterns are well aligned with the simulated multibeam patterns.
A 16-Element 2.4-GHz Multibeam Array Receiver Using 2-D Spatially Bandpass Digital Filters
IEEE Transactions on Aerospace and Electronic Systems ; 55 , 6 ; 3029-3038
01.12.2019
2916491 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
A Multibeam SIS Mixer Module for a Focal Plane Array Receiver
British Library Online Contents | 1998
|A Multibeam Phased Array for Aircraft
British Library Conference Proceedings | 1996
|Feed Array for a European Multibeam Antenna
British Library Conference Proceedings | 1989
|