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A compact 4-channel UWB beamforming receiver is proposed by employing low-Q LC delay with Q-compensation technique. The delay chain achieves 224 ps delay range with 7 ps delay resolution. It occupies area of 1.44 mm2, which is 7 times smaller than other UWB beamformer with LC delay. To compensate the losses generated by low Q inductors and minimize the power consumption, current reuse LNA and buffers...
<?Pub Dtl?>We introduce a ladder filter-based programmable time-delay element for beamforming in ultra-wideband (UWB) systems. Such a lumped-element realization becomes possible by approximating as a ratio of polynomials (based on Taylor and Padé expansions). When compared with conventional methods based on the tapped delay-line architecture, the proposed technique achieves lower...
We introduce a ladder filter based programmable time delay element for beamforming in Ultra-Wideband (UWB) systems. When compared to conventional methods based on the tapped delay line architecture, our technique achieves lower power dissipation, better area efficiency, and finer delay and gain resolution more efficiently. The proposed architecture is more scalable, has better parasitic absorption...
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