SiGe 140 GHz ring-oscillator-based injection-locked frequency divider

Seo, Hyogi; Yun, Jong-Won; Rieh, Jae Sung

doi:10.1049/el.2012.1273

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…Hence, selective type of antenna to be used in every miniaturize electronics gadget is also in growing interest toward microstrip antenna. The main advantages of microstrip antenna are low profile, low cost, easy to manufacture, and light weight [4][5][6][7]. However, microstrip antenna possesses drawbacks of low gain, low efficiency, and narrow bandwidth [8,9].…”

Section: Resultsmentioning

confidence: 99%

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A wide‐locking ÷3 BiCMOS injection‐locked frequency divider using internal feedback

Jang

Hsieh

Juang

2013

Micro & Optical Tech Letters

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excludes it from high-speed applications. Using multiple pneumatically controlled switches in a device such as a reconfigurable antenna would require careful design to optimize the channel network and pneumatic port layout. However, due to the channel network being on a separate polymer layer, and there being no requirement for any electrostatic actuation circuitry near the slug, the layout in the conducting layer is less restricted when using pneumatic control. To realize a more complete solution for reconfigurable devices in future research, pumps and valves-technologies that are commercially available in the field of microfluidics-could be connected directly to the ends of the channels, away from the RF devices. Such pneumatic components could then provide the source of the actuation pressure gradient required for slug positioning and control, as well as the means to address the individual switches in a network.A sizable overlapping area between the slug and the metal layer on the substrate is crucial for realizing a reasonable capacitance. This can be an issue for applications in which form factor cannot be compromised. But for reconfigurable antennas, in which there are generally large expanses of conducting layer to serve as radiating elements, this switch could easily be integrated without increasing the antenna size [6]. As an alternative fabrication method, the authors are investigating using lasermachining to create channel structures and pneumatic ports directly in the glass cover, as this would simplify feature alignment and also remove several processing steps. CONCLUSIONILFD core is 13.2 mW at the drain-source voltage of 0.8 V. The divider's free-running frequency is tunable from 3.079 to 3.163 GHz and at the incident power of 0 dBm, the locking range is 19.28%, from 8.9 to 10.8 GHz.

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Section: Resultsmentioning

confidence: 99%

“…These ILFD suffers from narrow locking range. The ring oscillator ILFDs benefit from wide locking range, but they typically suffer from high power consumption. The active inductor ILFDs can have wide locking range, but they operate at lower frequency than the LC‐tank ILFDs.…”

Section: Introductionmentioning

confidence: 99%

A wide‐locking ÷3 BiCMOS injection‐locked frequency divider using internal feedback

Jang

Hsieh

Juang

2013

Micro & Optical Tech Letters

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“…By toggling between operation modes, the output frequency lies in the same frequency band for a wide input frequency range. Previously published relevant works [1][2][3][4][5][6][7][8][9][10] [12][13][14] are summarized in Table I, the proposed frequency divider demonstrates the highest input frequency (160 GHz) among the dividers that have dual-modulus, divideby-2 and divide-by-3, and a state-of-the-art operational bandwidth (41.5%) among divide-by-3 dividers.…”

Section: Introductionmentioning

confidence: 99%

A D-Band Dual-Mode Dynamic Frequency Divider in 130-nm SiGe Technology

Dielacher

et al. 2020

IEEE Microw. Wireless Compon. Lett.

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In this work, a dual-mode (divide-by-2 and divide-by-3) dynamic frequency divider is presented. A tunable delay gated ring oscillator (TDGRO) topology is proposed for dual-mode operation and bandwidth extension. It uses a 130 nm gate length SiGe BiCMOS technology with ft and fmax of 250 GHz and 370 GHz, respectively. Verification shows that it works at W-band from 70 GHz to 114 GHz (47.8% bandwidth) for divide-by-2 and works at D-band from 105 GHz to 160 GHz (41.5% bandwidth) for divide-by-3. This divider can be used in integrated phase lock loops (PLLs) at millimeter-wave frequencies.

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