Ajay Kumar Poddar

Ajay Kumar
Poddar
Articles
Approach Drops SMD DRO Phase Noise 1
The use of metamaterials and advanced design techniques helps drop the phase noise of these microwave DROs.
Searching For Low-Phase-Noise Synthesizers
A hybrid frequency-synthesis approach provides low-phase-noise signals both close to and far from the carrier.
Oscillators Cover Multiple Bands
This new class of oscillator synchronously generates the signals needed for multiple-band, multimode communications with and without switching resonators or using multipliers.
DROs Drop Phase Noise
A new line of dielectric resonator oscillators (DROs) offers excellent spectral purity at microwave frequencies through 10 GHz and higher.
Method Minimizes Noise In VCXOs
The trick is combining self-injection locking with mode-coupling techniques to shave the size, cost, and phase noise from voltage-controlled crystal oscillators (VCXOs).
Reference Sources Reduce Size, Noise
These free-running and phase-locked reference sources can be supplied in standard and custom frequencies through 3 GHz, at a fraction of the size and power consumption of multiplied references.
Active Inductors Tune Low-Noise VCOs
Dynamic-phase-injection techniques help to tame tunable active inductors for use in miniature monolithic VCOs that provide low phase noise while operating with low power consumption.
VCOs Tune Miniature Synthesizers To 12 GHz
Using a hybrid approach based on miniature SAW and printed-circuit resonators, these tiny VCOs measure just 0.3 x 0.3 in. but can tune from 100 MHz to 12 GHz.
Miniature VCOs Shrink Wideband Synthesizers
Shrinking the size of planar resonators has led to extremely compact oscillators that are the building blocks for tiny, high-performance, PLL-based frequency synthesizers.
Planar Resonators Arm Tunable Oscillators
Voltage-controlled oscillators (VCOs) based on novel self-injection-locked compact coupled planar resonators (CCPRs) feature high Qs and low phase noise at microwave frequencies.
Planar Resonators Arm Tunable Oscillators
Voltage-controlled oscillators (VCOs) based on novel self-injection-locked compact coupled planar resonators (CCPRs) show great promise as high-Q sources for wireless communications.
Large-Signal Approach Yields Low-Noise VHF/UHF Oscillators
In contrast to traditional small-signal approaches, the use of large-signal, time-domain design techniques helps deliver low-noise grounded-base oscillators for VHF/UHF applications.
Large-Signal Approach Yields Low-Noise VHF/UHF Oscillators
In contrast to traditional small-signal approaches, the use of large-signal, time-domain design techniques helps deliver low-noise grounded-base oscillators for VHF/UHF applications.
Technique Trims VCXO Phase Noise
This patented circuit approach can improve the phase-noise performance and frequency stability of even low-cost voltage-controlled crystal oscillators.
Cost-Effective VCOs Replace Power-Hungry YIGs
These innovative voltage-controlled oscillators make the most of multi-coupled slow-wave planar resonators to achieve low phase-noise performance at a fraction of the size and power of YIGs.
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