A SiGe Fractional-${ N}$ Frequency Synthesizer for mm-Wave Wideband FMCW Radar Transceivers

Hasenaecker, Gregor; Delden, Marcel van; Jaeschke, Timo; Pohl, Nils; Aufinger, Klaus; Musch, Thomas

doi:10.1109/tmtt.2016.2520469

Cited by 74 publications

(25 citation statements)

References 37 publications

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“…Voltage controlled oscillator (VCO) is an essential component in modern integrated circuit, such as radio-frequency (RF) transceivers [1,2,3,4,5,6,7,8] and clock data recovery (CDR) systems [9,10,11,12,13,14,15,16,17]. LC VCO has much better jitter performance but limit tuning range.…”

Section: Introductionmentioning

confidence: 99%

A low power wide tuning range two stage ring VCO with frequency enhancing

Yan¹,

Wu²,

Hu³

et al. 2019

IEICE Electron. Express

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A wide tuning range frequency enhanced two stage ring voltage controlled oscillator (VCO) is proposed in this letter. The proposed delay cell increases the transmission gain by inserting a resistor between input and output, which consumes lower power to generate same oscillating frequency. A rail-to-rail effective voltage tuning range is obtained by both tuning of tail current and the strength of cross coupled latch. It is important for advanced process, which has low standard supply voltage and high threshold voltage. The proposed VCO is fabricated in TSMC 40 nm CMOS technology. The measured phase noise of proposed VCO is −98.05 dBc/Hz at 1 MHz offset with 1.38 GHz carrier frequency while consuming 1.1 mW from a 1.1 V standard supply. The figure of merit (FoM) is 160.4 dBc/Hz.

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Section: Introductionmentioning

confidence: 99%

A low power wide tuning range two stage ring VCO with frequency enhancing

Yan¹,

Wu²,

Hu³

et al. 2019

IEICE Electron. Express

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“…Recently, the FMCW radars drew considerable attention [10][11][12][13][14][15][16][17][18][19][20][21], partially owing to their high integration potential. Although the main driver in developing these small footprint solutions was the automotive industry [1], a gradual breakthrough into other spheres is evident.…”

Section: Introductionmentioning

confidence: 99%

On fundamental operating principles and range-doppler estimation in monolithic frequency-modulated continuous-wave radar sensors

Milovanović

2018

FACTA U EE

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In an overview of Horizontal Current Bipolar Transistor (HCBT) technology, the state-of-the-art integrated silicon bipolar transistors are described which exhibit f T and f max of 51 GHz and 61 GHz and f T BV CEO product of 173 GHzV that are among the highest-performance implanted-base, silicon bipolar transistors. HBCT is integrated with CMOS in a considerably lower-cost fabrication sequence as compared to standard vertical-current bipolar transistors with only 2 or 3 additional masks and fewer process steps. Due to its specific structure, the charge sharing effect can be employed to increase BV CEO without sacrificing f T and f max. Moreover, the electric field can be engineered just by manipulating the lithography masks achieving the high-voltage HCBTs with breakdowns up to 36 V integrated in the same process flow with high-speed devices, i.e. at zero additional costs. Double-balanced active mixer circuit is designed and fabricated in HCBT technology. The maximum IIP3 of 17.7 dBm at mixer current of 9.2 mA and conversion gain of-5 dB are achieved.

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“…Microwave absorbing materials are of great importance to attenuate electromagnetic pollution arising from explosive development of information technology and defend against radar detection for military stealth . Recently, millimeter waves with frequency range of 30‐300 GHz are proposed for radar detection due to the advantages of high resolution and all‐weather characteristic, in which atmospheric windows of 35 GHz, 94 GHz, 140 GHz, 220 GHz are the most attractive frequencies . Hence, there is an urgent need to develop high‐efficiency absorbing materials aiming at the corresponding bands.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6] Recently, millimeter waves with frequency range of 30-300 GHz are proposed for radar detection due to the advantages of high resolution and all-weather characteristic, in which atmospheric windows of 35 GHz, 94 GHz, 140 GHz, 220 GHz are the most attractive frequencies. 7,8 Hence, there is an urgent need to develop high-efficiency absorbing materials aiming at the corresponding bands.…”

Section: Introductionmentioning

confidence: 99%

Formation of BaFe_12−xNb_xO₁₉ and its high electromagnetic wave absorption properties in millimeter wave frequency range

et al. 2017

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BaFe12−xNbxO19 (BFNO, x=0‐0.6) powders with Nb5+ substituting for Fe3+ were prepared by sol‐gel method. The formation process and electromagnetic (EM) wave absorption properties of the BFNO are investigated in detail. With Nb5+ content increasing from x=0 to x=0.6, the formation temperature of barium ferrite phase without heat time increases from ~700°C to ~900°C, while the appearance temperature of typical plate grains decreases from ~1300°C to ~1100°C, and the crystallization ability decreases at 600°C‐900°C, while the grain size increases gradually at 1100°C‐1300°C. Increasing sintering temperature and time promote the formation of barium ferrite phase and grain growth in all the samples. The ε′ and ε″ of the sample with x=0.6 sintered at 1300°C for 3 hours reach highest of ~7.9 and ~0.95 over 26.5‐40 GHz. Multiresonance peaks in permeability decrease from 40+ GHz to ~30 GHz with x rising from 0 to 0.6. Ultimately, small RLmin of ~−42 dB, thin dm of ~0.76 mm, and broad bandwidth of >12 GHz can be exhibited simultaneously around millimeter wave atmospheric window of 35 GHz.

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A SiGe Fractional-${ N}$ Frequency Synthesizer for mm-Wave Wideband FMCW Radar Transceivers

Cited by 74 publications

References 37 publications

A low power wide tuning range two stage ring VCO with frequency enhancing

A low power wide tuning range two stage ring VCO with frequency enhancing

On fundamental operating principles and range-doppler estimation in monolithic frequency-modulated continuous-wave radar sensors

Formation of BaFe_12−xNb_xO₁₉ and its high electromagnetic wave absorption properties in millimeter wave frequency range

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A SiGe Fractional-${ N}$ Frequency Synthesizer for mm-Wave Wideband FMCW Radar Transceivers

Cited by 74 publications

References 37 publications

A low power wide tuning range two stage ring VCO with frequency enhancing

A low power wide tuning range two stage ring VCO with frequency enhancing

On fundamental operating principles and range-doppler estimation in monolithic frequency-modulated continuous-wave radar sensors

Formation of BaFe12−xNbxO19 and its high electromagnetic wave absorption properties in millimeter wave frequency range

Contact Info

Product

Resources

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Formation of BaFe_12−xNb_xO₁₉ and its high electromagnetic wave absorption properties in millimeter wave frequency range