An IR-UWB Angle-of-Arrival Sensor IC Using Auto-Toggled Time-to-Digital Converter

Geunhaeng Lee; Hyunmin Koh; Ui Suk Suh; Tae Wook Kim

doi:10.1109/LMWC.2019.2943811

An IR-UWB Angle-of-Arrival Sensor IC Using Auto-Toggled Time-to-Digital Converter

Geunhaeng Lee, Hyunmin Koh, Ui Suk Suh, Tae Wook Kim

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

This letter introduces an impulse radio-ultrawideband (IR-UWB) angle-of-arrival (AoA) sensor integrated circuit (IC) using an auto-toggled time-to-digital converter (TDC). The detectable range of the proposed AoA sensor can be extended by a factor of 2 by utilizing an auto-toggle operation that toggles the TDC's input signal according to the target's position. The analog front end (AFE) of the receivers is designed with a 3-5 GHz band and the system comprises two AFEs and one digital back end (DBE). The proposed IR-UWB AoA sensor IC was fabricated using a 65-nm CMOS process. The measurable angular range was ± 40°, and an angle error of ± 1.5° was measured.

Original language	English
Article number	8879650
Pages (from-to)	749-752
Number of pages	4
Journal	IEEE Microwave and Wireless Components Letters
Volume	29
Issue number	11
DOIs	https://doi.org/10.1109/LMWC.2019.2943811
Publication status	Published - 2019 Nov

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Electrical and Electronic Engineering

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Lee, G., Koh, H., Suh, U. S., & Kim, T. W. (2019). An IR-UWB Angle-of-Arrival Sensor IC Using Auto-Toggled Time-to-Digital Converter. IEEE Microwave and Wireless Components Letters, 29(11), 749-752. [8879650]. https://doi.org/10.1109/LMWC.2019.2943811

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