Bluetooth Based Synthesizer for Wireless Sensor Measurements

Ghasem Hemmatipour

In this paper aims to overcome the spur problems in Bluetooth-based wireless sensors measurement a compact fractional-N frequency synthesizer is presented ranging from 2 GHz to 3 GHz in frequency. Through this technique, the phase noise in the final spectrum is improved and spur tones in the output are deleted. Simple M-bit dither generator (Linear Feedback Shift Register) is deployed in an effective way to eliminate spur tones from fractional modulation. To validate the presented fractional-N frequency synthesizer with 26 MHz reference frequency, we utilize TSMC 0.18 um technology in ADS (Advanced Design System). The simulation results demonstrate that the used techniques make the fractional-N synthesizer's performance considerably better.

Select Volume / Issues:

• Volume 5,Issue 5, Sept. 2014

Year:

2014

Type of Publication:

Article

Keywords:

Fractional-N; Noise Cancellation; LFSR; Spurs

Journal:

IJECCE

Volume:

5

Number:

5

Pages:

1098-1102

Month:

September