scholarly journals Evaluation of low cost solutions for the transmission through optical fiber of low phase noise OCXO signals

2012 ◽  
Author(s):  
S. Azaizia ◽  
K. Saleh ◽  
O. Llopis ◽  
A. Rissons
Keyword(s):  
Optical Fiber ◽  
Phase Noise ◽  
Low Cost ◽  
Low Phase Noise

A Low Phase Noise and Low Spurious Frequency Source based on Programmable Frequency Dividers

2014 ◽  
Vol 971-973 ◽  
pp. 310-313
Author(s):  
Chen Liang
Keyword(s):  
Phase Noise ◽  
High Performance ◽  
Low Cost ◽  
High Harmonic ◽  
Phase Detector ◽  
Frequency Resolution ◽  
Harmonic Suppression ◽  
Frequency Dividers ◽  
Frequency Source ◽  
Low Phase Noise

In this paper, based on the programmable frequency dividers HMC394 and AD company's integer PLL chip ADF4107, in the premise of not reducing the phase detector frequency, improved the frequency resolution and effectively inhibits the phase stray. Designed a frequency source with high performance index: high resolution is 10kHz, low phase noise is-91.27dBc/Hz @10kHz, low spurious is less than-60dBc, high harmonic suppression is less than-60dBc,the design method is simple, low cost, flexible control, high performance and widely used.

scholarly journals Applications of the optical fiber to the generation and measurement of low-phase-noise microwave signals

2008 ◽  
Vol 25 (12) ◽  
pp. 2140 ◽  
Author(s):  
Kirill Volyanskiy ◽  
Johann Cussey ◽  
Hervé Tavernier ◽  
Patrice Salzenstein ◽  
Gérard Sauvage ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Phase Noise ◽  
Microwave Signals ◽  
Low Phase Noise

Power Efficient Implementation of Low Noise CMOS LC VCO using 32nm Technology for RF Applications

2018 ◽  
Vol 6 (8) ◽  
pp. 53
Author(s):  
Shitesh Tiwari ◽  
Sumant Katiyal ◽  
Parag Parandkar
Keyword(s):  
Power Consumption ◽  
Phase Noise ◽  
Tuning Range ◽  
Low Voltage ◽  
Performance Comparison ◽  
Low Noise ◽  
Center Frequency ◽  
Voltage Controlled Oscillator ◽  
Low Phase Noise ◽  
Lc Vco

Voltage Controlled Oscillator (VCO) is an integral component of most of the receivers such as GSM, GPS etc. As name indicates, oscillation is controlled by varying the voltage at the capacitor of LC tank. By varying the voltage, VCO can generate variable frequency of oscillation. Different VCO Parameters are contrasted on the basis of phase noise, tuning range, power consumption and FOM. Out of these phase noise is dependent on quality factor, power consumption, oscillation frequency and current. So, design of LC VCO at low power, low phase noise can be obtained with low bias current at low voltage.  Nanosize transistors are also contributes towards low phase noise. This paper demonstrates the design of low phase noise LC VCO with 4.89 GHz tuning range from 7.33-11.22 GHz with center frequency at 7 GHz. The design uses 32nm technology with tuning voltage of 0-1.2 V. A very effective Phase noise of -114 dBc / Hz is obtained with FOM of -181 dBc/Hz. The proposed work has been compared with five peer LC VCO designs working at higher feature sizes and outcome of this performance comparison dictates that the proposed work working at better 32 nm technology outperformed amongst others in terms of achieving low Tuning voltage and moderate FoM, overshadowed by a little expense of power dissipation. 

Design of wideband discrete VCO with low phase noise

2011 ◽  
Vol 25 (9) ◽  
pp. 817-822
Author(s):  
Zhiqiang Wei ◽  
Zushen Liu ◽  
Wu Huang ◽  
Shu Liu
Keyword(s):  
Phase Noise ◽  
Low Phase Noise
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