A 27.9–53.5-GHz transformer-based injection-locked frequency divider with 62.9% locking range

A wide-band divide-by-2 injection-locked frequency divider (ILFD) based on a distributed dual-resonance high-order tank is presented. The ILFD employs a distributed LC network as the dual resonance tank and achieves an ultra-wide locking range. Fabricated in a 65 nm 1P7M LP-CMOS process, the divide-by-2 ILFD consumes 7 mW from a 0.7 V power supply and realizes a locking range of 87.0%, from 13 GHz to 33 GHz. The core circuit occupies an area of 0.22 mm × 0.5 mm.

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“…, and a = C s C p (6) Thus, the zero frequency ω z and the two pole frequencies ω p1 and ω p2 are given as:…”

Section: Zero and Pole Analysismentioning

confidence: 99%

“…In References [4,5], a wide-band ILFD was realized by a transformer-based fourth-order resonator. The work in [4] was further investigated in [6], and the locking range was expanded to 62.9%. In this case, however, a transformer with a low coupling factor was needed.…”

Section: Introductionmentioning

confidence: 99%

A Wide-Band Divide-by-2 Injection-Locked Frequency Divider Based on Distributed Dual-Resonance Tank

Xing

Kang

2022

Electronics

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“…8 In order to eliminate the influence of package, reject the common-mode noise and enhance the output power, the differential topology is attractive for CMOS process circuit. [1][2][3][4][5][6][7][8] Conventionally, balun is adopted in the differential system. Meanwhile, the balance and matching property of balun are crucial in the circuit performance.…”

Section: Introductionmentioning

confidence: 99%

“…The complementary metal oxide semiconductor (CMOS) process has been gaining increasing attention for millimeter wave and THz applications in the 5th generation (5G) communication, the phase array transceiver, and the THz imaging system . In order to eliminate the influence of package, reject the common‐mode noise and enhance the output power, the differential topology is attractive for CMOS process circuit . Conventionally, balun is adopted in the differential system.…”

Section: Introductionmentioning

confidence: 99%

Millimeter wave balun design and optimization based on compensation matching capacitors and active S parameter

Zhang

et al. 2019

Int J Numerical Modelling

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A balun design algorithm based on the compensation matching capacitors and the active S parameter is given in this paper. Compared with the inductor matching network, the compensation matching capacitors not only compensate the phase and the amplitude error of the balun, but also occupy a compact chip area. Considering the coupling between two differential terminals of the balun, the active S parameter is adopted. On the basis of the active S parameter, the reflection coefficients of two differential terminals are calculated directly. On the basis of this algorithm, the simulated phase error and the amplitude error of the balun are less than 0.97°and 0.13 dB, from 15 to 18 GHz. Moreover, a 5-bit differential switch-type phase shifter with two baluns is designed in the 180-nm complementary metal oxide semiconductor (CMOS) process at Ku band. Thanks to the small phase error of two baluns, the tested RMS phase error is less than 4°, from 15 to 18 GHz.

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Design and analysis of 73-106 GHz CMOS injection-locked frequency divider

Lin

Lan

Wang

2020

International Journal of Electronics

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A 27.9–53.5-GHz transformer-based injection-locked frequency divider with 62.9% locking range

Cited by 7 publications

References 6 publications

A Wide-Band Divide-by-2 Injection-Locked Frequency Divider Based on Distributed Dual-Resonance Tank

A Wide-Band Divide-by-2 Injection-Locked Frequency Divider Based on Distributed Dual-Resonance Tank

Millimeter wave balun design and optimization based on compensation matching capacitors and active S parameter

Design and analysis of 73-106 GHz CMOS injection-locked frequency divider

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