A Fully Integrated Programmable 6.0-8.5-GHz UWB IR Transmitter Front-End for Energy-Harvesting Devices

Tuomas Haapala, Tuomas Rantataro, Kari Halonen

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

5 Lataukset (Pure)

Abstrakti

Ultra-wideband impulse radio transceivers are becoming a key building block for establishing ultralow power wireless sensor networks. However, impulse radio transmitters commonly suffer from a low spectral quality and a coarse frequency tuning resolution, which limits their global applicability. In this article, we present a fully integrated ultralow power impulse radio transmitter front-end (TFE) whose pulse shaping capabilities and integrated output matching network make it globally applicable up to a 4-MHz pulse repetition rate. We demonstrate a digital carrier frequency-tuning method that achieves a 28-MHz resolution over the frequency band of 6.0-8.5 GHz. In addition, we show that the temperature dependence of the TFE's carrier frequency can be compensated digitally over the industrial temperature range from -40°C to 85 °C. The proposed TFE supports energy-harvesting applications particularly well due to its low leakage power level of 380 nW and a high tolerance to power supply transients during pulse generation. It is demonstrated to operate robustly with low-drive regulators powered by low-quality sources. The TFE is fabricated in a 65-nm CMOS process. It generates 1.8-pJ pulses at a 7.5-GHz carrier frequency while consuming 63 pJ per pulse, corresponding to 2.3% efficiency.
AlkuperäiskieliEnglanti
Artikkeli9082107
Sivut1922-1934
JulkaisuIEEE Journal of Solid-State Circuits
Vuosikerta55
Numero7
Varhainen verkossa julkaisun päivämäärä2020
DOI - pysyväislinkit
TilaJulkaistu - heinäkuuta 2020
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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