A 0.4-1.0 GHz, 47 MHop/s Frequency-Hopped TXR Front End with 20 dB In-Band Blocker Rejection

Naser Mousavi, Zhiheng Wang, Danijela Cabric, Ramesh Harjani

Research output: Contribution to journalArticle

Abstract

In this paper, we present a prototype ultra-fast hopping spread spectrum transceiver front-end that realizes 20 dB of processing gain in the RF before any amplification occurs along the receiver chain. This means that a narrow-band in-band interferer is rejected by 20 dB before the low noise amplifier (LNA). The correlation function at RF is made possible by using a passive mixer-first receiver architecture that is driven by an ultra-fast hopped local oscillator (LO) signal. The 47 MHop/s LO is generated using an all-digital oscillator circuit that is followed by a memoryless digital-to-analog converter (DAC). The prototype chip fabricated in a Taiwan Semiconductor Manufacturing Company (TSMC) 65 nm RF CMOS process occupies 3.1 mm2 of active area. The receiver and the transmitter each consume ≈25 mW from a 1 V power supply.

Original languageEnglish (US)
Article number8719962
Pages (from-to)1917-1928
Number of pages12
JournalIEEE Journal of Solid-State Circuits
Volume54
Issue number7
DOIs
StatePublished - Jul 1 2019

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Low noise amplifiers
Digital to analog conversion
Transceivers
Amplification
Transmitters
Semiconductor materials
Networks (circuits)
Processing
Industry

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A 0.4-1.0 GHz, 47 MHop/s Frequency-Hopped TXR Front End with 20 dB In-Band Blocker Rejection. / Mousavi, Naser; Wang, Zhiheng; Cabric, Danijela; Harjani, Ramesh.

In: IEEE Journal of Solid-State Circuits, Vol. 54, No. 7, 8719962, 01.07.2019, p. 1917-1928.

Research output: Contribution to journalArticle

Mousavi, Naser ; Wang, Zhiheng ; Cabric, Danijela ; Harjani, Ramesh. / A 0.4-1.0 GHz, 47 MHop/s Frequency-Hopped TXR Front End with 20 dB In-Band Blocker Rejection. In: IEEE Journal of Solid-State Circuits. 2019 ; Vol. 54, No. 7. pp. 1917-1928.
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