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Non-squinting wideband analog multi-beamformer is proposed using true time delay (TTD) element delay Vandermonde matrix (DVM). Efficient realization of the DVM is achieved by sparse factorization, which leads to low-complexity hardware implementations (i.e. less number of delay blocks). It is shown that the proposed approach saves 36 TTD elements in a 5-beam multi-beamformer (4-beams corresponding...
An intermediate frequency (IF) squinting-free multi-beamforming method is proposed for multi-antenna systems. The proposed approach uses a low-complexity factorization of a true-time-delay (TTD) multi-beam matrix, which is proposed to be realized using an analog integrated circuits approach. A TTD realization of multi-beams at intermediate frequency is achieved following amplification and synchronous...
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