A wide-locking range SiGe BiCMOS divide-by-3 injection locked oscillators

Jang, Sheng‐Lyang; Chang, Chia‐Wei; Cheng, Chih Chia; Hsue, Ching-Wen; Hsu, Chun‐Wei

doi:10.1109/vdat.2011.5783549

“…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%

“…The ring oscillator ILFDs [5] benefit from wide locking range, but they typically suffer from high power consumption. The active inductor ILFDs [6,7] can have wide locking range, but they operate at lower frequency than the LC-tank ILFDs. The divide-by-2/-4 LC tank ILFD has received much attention recently [8,9] because of easy implementation and large locking range in the divide-by-2 mode.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Jang

¹

,

Hsieh

²

,

Juang

³

2013

Micro & Optical Tech Letters

Self Cite

0

View full text Add to dashboard Cite

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.

show abstract

“…[53] showed that phase noise of an injection-locked oscillator can be reduced to the level comparable to that of the injecting signal in the lock state. The ability to lower the phase noise of injection-locked active inductor oscillators (ILAIO) to the level of the external "clean" signal and the large frequency tuning range make active inductor oscillators particularly attractive for injection-locked frequency dividers [54,55,13,56,57,58]. Also the relative poor phase noise of injection-locked active inductor oscillators is not of a critical concern for some applications, e.g.…”

Section: Motivation and Objectives For Injection-locked Oscillators 121 Injection-locked Active Inductor Oscillatorsmentioning

confidence: 99%

Injection-lock and reconfigurable charge-domain sampling mixers/filters for data communications over wireless channels.

Zhou¹

2021

Preprint

0

View full text Add to dashboard Cite

This thesis provides a theoretical and experimental study of injection locking and reconfigurable charge-domain sampling mixers and filters for data communications over wireless channels. On injection-locking, the intrinsic relation between the characteristics of injection signals such as sinusoidal or square, single-tone or multi-tone, the type of oscillators under injection such as harmonic oscillators (passive or active LC oscillators) or non-harmonic oscillators (ring or relaxation oscillators), and the lock range of the oscillators under injection was investigated. For the very first time, we discovered the intrinsic relation between the lock range and the phase of multiple injections of harmonic oscillators. In addition, we obtained the closed-form expression of the lock range of harmonic oscillators with square-wave injections. Moreover, we obtained the distinct characteristics of the lock range of harmonic and non-harmonic oscillators and that of different types of non-harmonic oscillators. These theoretical findings were not known before and were validated using simulation results. On reconfigurable charge-domain sampling mixers and filters for software-defined radio, a novel quadrature charge-domain down-conversion sampling mixer with embedded finite-impulse-response (FIR), infinite-impulse-response (IIR), and 4-path bandpass filters was developed. An in-depth investigation of the principles of periodic impulse sampling, periodic windowed sampling, and periodic N-path windowed sampling was presented and a detailed mathematical treatment of charge-domain windowed samplers with built-in sinc, FIR and IIR filters was provided. The proposed quadrature charge-domain sampler with embedded FIR, IIR, and 4-path band-pass filters was implemented in IBM 130 nm 1.2V CMOS technology and its performance was validated both using simulation results and on-wafer measurement.

show abstract

“…[53] showed that phase noise of an injection-locked oscillator can be reduced to the level comparable to that of the injecting signal in the lock state. The ability to lower the phase noise of injection-locked active inductor oscillators (ILAIO) to the level of the external "clean" signal and the large frequency tuning range make active inductor oscillators particularly attractive for injection-locked frequency dividers [54,55,13,56,57,58]. Also the relative poor phase noise of injection-locked active inductor oscillators is not of a critical concern for some applications, e.g.…”

Section: Motivation and Objectives For Injection-locked Oscillators 121 Injection-locked Active Inductor Oscillatorsmentioning

confidence: 99%

Injection-lock and reconfigurable charge-domain sampling mixers/filters for data communications over wireless channels.

Zhou¹

2021

Preprint

0

View full text Add to dashboard Cite

This thesis provides a theoretical and experimental study of injection locking and reconfigurable charge-domain sampling mixers and filters for data communications over wireless channels. On injection-locking, the intrinsic relation between the characteristics of injection signals such as sinusoidal or square, single-tone or multi-tone, the type of oscillators under injection such as harmonic oscillators (passive or active LC oscillators) or non-harmonic oscillators (ring or relaxation oscillators), and the lock range of the oscillators under injection was investigated. For the very first time, we discovered the intrinsic relation between the lock range and the phase of multiple injections of harmonic oscillators. In addition, we obtained the closed-form expression of the lock range of harmonic oscillators with square-wave injections. Moreover, we obtained the distinct characteristics of the lock range of harmonic and non-harmonic oscillators and that of different types of non-harmonic oscillators. These theoretical findings were not known before and were validated using simulation results. On reconfigurable charge-domain sampling mixers and filters for software-defined radio, a novel quadrature charge-domain down-conversion sampling mixer with embedded finite-impulse-response (FIR), infinite-impulse-response (IIR), and 4-path bandpass filters was developed. An in-depth investigation of the principles of periodic impulse sampling, periodic windowed sampling, and periodic N-path windowed sampling was presented and a detailed mathematical treatment of charge-domain windowed samplers with built-in sinc, FIR and IIR filters was provided. The proposed quadrature charge-domain sampler with embedded FIR, IIR, and 4-path band-pass filters was implemented in IBM 130 nm 1.2V CMOS technology and its performance was validated both using simulation results and on-wafer measurement.

show abstract

A wide-locking range SiGe BiCMOS divide-by-3 injection locked oscillators

Cited by 5 publications

References 8 publications

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

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

Injection-lock and reconfigurable charge-domain sampling mixers/filters for data communications over wireless channels.

Injection-lock and reconfigurable charge-domain sampling mixers/filters for data communications over wireless channels.

Contact Info

Product

Resources

About