Self-injection locked compact coupled planar resoator based cost-effective ultra low phase noise VCOs For wireless systems

Rohde, Ulrich L.; Poddar, Ajay K.

doi:10.1109/ecctd.2007.4529767

Cited by 6 publications

(2 citation statements)

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“…Figure (3) illustrates the layout of the typical electric, magnetic, hybrid-coupling planar resonator networks, and oscillator circuits for comparative analysis [24].…”

Section: Printed Coupled Planar Resonatorsmentioning

confidence: 99%

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Miniaturized VCOs arm configurable synthesizers

Rohde

Poddar

2009

2009 IEEE Sarnoff Symposium

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This paper describes the theoretical analysis and experimental verification of voltage controlled oscillator (VCO) that overcomes the past attempts to combine wideband VCO and Phase-Locked-Loop (PLL) in one small package (0.6x0.6 inches) for configurable frequency synthesizer operations. Shr inking the size of planar r esonator s has led to miniatur ized (0.3x0.3 inches) wideband V C Os that ar e the building blocks for tiny, high-per for mance, PL L -based fr equency synthesizer s. The typical measured phase noise @ 10 kHz offset for 4950-5500 MHz synthesizer is -90 dBc/Hz with 5V, 30 mA and settling time is less than 1msec, and not limited to this frequency, and be extended from 100 MHz to 12 GHz.

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“…Figure (3) illustrates the layout of the typical electric, magnetic, hybrid-coupling planar resonator networks, and oscillator circuits for comparative analysis [24].…”

Section: Printed Coupled Planar Resonatorsmentioning

confidence: 99%

“…The loaded quality factor Q L of the coupled resonator network is given in terms of unloaded quality factor Q o as [24]  …”

Section: Printed Coupled Planar Resonatorsmentioning

confidence: 99%

Miniaturized VCOs arm configurable synthesizers

Rohde

Poddar

2009

2009 IEEE Sarnoff Symposium

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Wide dynamic range microwave planar coupled ring resonator for sensing applications

Zarifi

Daneshmand

2016

Applied Physics Letters

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A highly sensitive, microwave-coupled ring resonator with a wide dynamic range is studied for use in sensing applications. The resonator's structure has two resonant rings and, consequently, two resonant frequencies, operating at 2.3 and 2.45 GHz. Inductive and capacitive coupling mechanisms are explored and compared to study their sensing performance. Primary finite element analysis and measurement results are used to compare the capacitive and inductive coupled ring resonators, demonstrating sensitivity improvements of up to 75% and dynamic range enhancement up to 100% in the capacitive coupled structure. In this work, we are proposing capacitive coupled planar ring resonators as a wide dynamic range sensing platform for liquid sensing applications. This sensing device is well suited for low-cost, real-time low-power, and CMOS compatible sensing technologies.

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Hybrid-coupled planar resonator (HPCR) arms miniaturized synthesizers

Poddar

Rohde

2009

2009 IEEE International Frequency Control Symposium Joint With the 22nd European Frequency and Time Forum

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Self-injection locked compact coupled planar resoator based cost-effective ultra low phase noise VCOs For wireless systems

Cited by 6 publications

References 10 publications

Miniaturized VCOs arm configurable synthesizers

Miniaturized VCOs arm configurable synthesizers

Wide dynamic range microwave planar coupled ring resonator for sensing applications

Hybrid-coupled planar resonator (HPCR) arms miniaturized synthesizers

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