**Please read the paper on the following link:**

https://ieeexplore.ieee.org/document/9152038

**Abstract:**

True-time-delays enable wideband analog and hybrid beamforming by mitigating the beam squint problem. This paper reports a true-time-delay beamforming receiver supporting delays up to three carrier-frequency cycles. The inherent delay scaling with frequency enables true-time-delays for large arrays at low-GHz frequencies where long delays are required due to lambda/2 antenna spacing. The delays are implemented through delayed resampling of a passive mixer\'s discrete-time output. Driving the mixers with pulse-skipped local oscillator (LO) signals allows the delay range to exceed one carrier cycle.A polyphase receiver structure prevents aliasing of noise and unwanted tones caused by LO pulse-skipping.

A 0.6–4.0 GHz RF-Resampling Beamforming Receiver with Frequency-Scaling True-Time-Delays Up to Three Carrier Cycles

**Session Chairs:** David Ruffieux, CSEM SA; Gernot Hueber, Silicon Austria Labs

D2L-3: RF & Wireless Communications (ESSCIRC 2020 SSC-L special edition)

technical paper

The aim of ESSCIRC and ESSDERC is to provide an annual European forum for the presentation and discussion of recent advances in solid-state devices and circuits.
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ESSCIRC ESSDERC 2021

The aim of ESSCIRC and ESSDERC is to provide an annual European forum for the presentation and discussion of recent advances in solid-state devices and circuits.
The level of integration for system-on-chip design is rapidly increasing.

This is made available by advances in semiconductor technology. Therefore, more than ever before, a deeper interaction among technologists, device experts, IC designers, and system designers is necessary. ESSCIRC and ESSDERC are governed by a common Steering Committee and share Plenary Keynote Presentations and Joint Sessions bridging both device and circuit communities.





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A 0.6–4.0 GHz RF-Resampling Beamforming Receiver with Frequency-Scaling True-Time-Delays Up to Three Carrier Cycles

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