Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

An 18.8–33.9-GHz, 2.26-mW Current-Reuse Injection-Locked Frequency Divider for Radar Sensor Applications

Version 1 : Received: 17 February 2021 / Approved: 18 February 2021 / Online: 18 February 2021 (09:33:22 CET)

How to cite: Oh, K.; Ko, G.; Kim, J.; Baek, D. An 18.8–33.9-GHz, 2.26-mW Current-Reuse Injection-Locked Frequency Divider for Radar Sensor Applications. Preprints 2021, 2021020402 (doi: 10.20944/preprints202102.0402.v1). Oh, K.; Ko, G.; Kim, J.; Baek, D. An 18.8–33.9-GHz, 2.26-mW Current-Reuse Injection-Locked Frequency Divider for Radar Sensor Applications. Preprints 2021, 2021020402 (doi: 10.20944/preprints202102.0402.v1).

Abstract

An 18.8–33.9-GHz, 2.26-mW current-reuse (CR) injection-locked frequency divider (ILFD) for radar sensor applications is presented in this paper. A fourth-order resonator is designed using a transformer with a distributed inductor for wideband operating of the ILFD. The CR core is employed to reduce the power consumption compared to conventional cross-coupled pair ILFDs. The targeted input center frequency is 24 GHz for radar application. The self-oscillated frequency of the proposed CR-ILFD is 14.08 GHz. The input frequency locking range is from 18.8 to 33.8 GHz (57%) at an injection power of 0 dBm without a capacitor bank or varactors. The proposed CR-ILFD consumes 2.26 mW of power from a 1-V supply voltage. The entire die size is 0.75 mm ´ 0.45 mm. This CR-ILFD is implemented in a 65-nm CMOS technology.

Subject Areas

current-reuse; injection-locked frequency divider; radar sensor; wideband

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