30.6 A Low-Power BLE Transceiver with Support for Phase-Based Ranging, Featuring 5µs PLL Locking Time and 5.3 ms Ranging Time, Enabled by Staircase-Chirp …

E Bechthum, J Dijkhuis, M Ding, Y He… - … Solid-State Circuits …, 2020 - ieeexplore.ieee.org
Nowadays, almost every mobile device features Bluetooth Low Energy (BLE) connectivity.
Accurate RF-based ranging is of major importance to enable rapidly emerging applications …

A 0.7-V sub-mW type-II phase-tracking Bluetooth low energy receiver in 28-nm CMOS

S Hu, P Chen, P Quinlan… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
We present an architecture of a Bluetooth low energy (BLE)-compliant receiver which, for the
first time ever, breaks the 1mW barrier of power consumption. It is based on a type-II phase …

A Commutated-LC RF Broadband Delay Circuit

S Ming, J Yang, J Zhou - IEEE Journal of Solid-State Circuits, 2022 - ieeexplore.ieee.org
This article presents a commutated-inductor–capacitor (commutated-) or switched-circuit that
acts as a radio frequency (RF) delay line. Thanks to its linear-periodically time-varying …

A 10.56-GHz broadband transceiver with integrated T/R switching via matching network reuse and 0.3–2.1-GHz baseband in 28-nm CMOS technology

W Zhu, L Zhang, Y Wang - IEEE Transactions on Microwave …, 2019 - ieeexplore.ieee.org
This paper presents a 10.56-GHz transceiver with ultracompact transformer-based
transmit/receive (T/R) switching via matching network reuse. The reused transformer can …

A Regulation-Free Sub-0.5-V 16-/24-MHz Crystal Oscillator With 14.2-nJ Startup Energy and 31.8- W Steady-State Power

KM Lei, PI Mak, MK Law… - IEEE Journal of Solid …, 2018 - ieeexplore.ieee.org
This paper reports a regulation-free sub-0.5-V crystal oscillator (XO). The XO specifically
designed for Bluetooth low-energy (BLE) radios aims for direct-powering by the harvested …

A current re-use quadrature RF receiver front-end for low power applications: blixator circuit

M Barzgari, A Ghafari, M Meghdadi… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
This article presents the theory and implementation of a quadrature and differential RF front-
end receiver. Combining balun, low-noise amplifier (LNA), mixer, and oscillator in a single …

A 1.53 mm3 crystal-less standards-compliant Bluetooth Low Energy module for volume constrained wireless sensors

B Wiser, K Sankaragomathi, J Schauer… - 2019 Symposium on …, 2019 - ieeexplore.ieee.org
Highly miniaturized wireless sensors will enable new healthcare sensing modalities such as
ultra-small wearables, implantables, smart pills, etc. Bluetooth Low Energy (BLE) links to …

A 915 MHz IoT transmitter employing frequency tripler and digitally controlled duty-cycle/phase calibration

KS Choi, KM Kim, J Ko, SG Lee - IEEE Journal of Solid-State …, 2022 - ieeexplore.ieee.org
A 915 MHz binary frequency-shift keying (BFSK) transmitter (TX) for Internet-of-Things (IoT)
applications is presented. The proposed TX adopts a passive frequency tripler, digital duty …

Sub-sampling direct RF-to-digital converter with 1024-APSK modulation for high throughput polar receiver

H Wang, FF Dai, Z Su, Y Wang - IEEE Journal of Solid-State …, 2020 - ieeexplore.ieee.org
This article presents a direct RF-to-digital converter (RDC) for polar receivers, in which the
amplitude information of the received signal is detected by a reconfigurable analog-to-digital …

A Bluetooth 5 transceiver with a phase-tracking RX and its corresponding digital baseband in 40-nm CMOS

M Ding, P Zhang, Y He, S Traferro… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
A 0.8-V Bluetooth 5 (BT5) digitally intensive transceiver with a phase-tracking RX and a
digital TX in 40-nm CMOS is presented. For the phase-tracking RX, a hybrid loop filter with a …