A Low Duty Cycle Burst-Mode Telemeter Signal Generation Technique for VHF Insect Tracking and Its CMOS Implementation
In: IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Jg. 28 (2020-03-01), S. 833-837
Online
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Zugriff:
This brief presents a new circuit design for very high-frequency (VHF) radio telemetry, to miniaturize active RFID tags for tracking small insects and bees. It reports the first CMOS insect tag implementation for generating 150-MHz burst-mode telemeter signals using employing digital approach. This design is vastly different from the present PCB-based analog VHF tag which uses bipolar transistors and large passive components. The new telemeter circuit uses a 150-MHz voltage-controlled ring-oscillator (VCRO) feeding into a cascade of frequency dividers whose outputs are combined (without requiring control logic) to generate extremely low duty cycle burst-mode transmission signal to save power. In addition, it is the first advancement of the VHF telemeter that incorporates digital code for insect tag identification, compared with the present state-of-the-art analog methods which use small frequency shifts from a reference $f_{o}$ (~150 MHz) to $f_{o}+\Delta f$ MHz for individual tag identification. In the proposed design, the strength of the modulated carrier signal is used to track the tagged insect location through the triangulation technique. A DRC and pattern-density clean chip-tag was designed for an 8-bit code at a throughput of 576 b/s, on a 28-nm CMOS process. It occupies an active layout area of $1600~\mu \text{m}^{2}$ and consumes $8.2~\mu \text{W}$ .
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A Low Duty Cycle Burst-Mode Telemeter Signal Generation Technique for VHF Insect Tracking and Its CMOS Implementation
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Autor/in / Beteiligte Person: | S. M. Rezaul Hasan ; Kumari, Meera |
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Zeitschrift: | IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Jg. 28 (2020-03-01), S. 833-837 |
Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2020 |
Medientyp: | unknown |
ISSN: | 1557-9999 (print) ; 1063-8210 (print) |
DOI: | 10.1109/tvlsi.2019.2947696 |
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