Low phase noise phase locked loop frequency synthesizer design for breast cancer detection

Date

2015-11-06

Author

KEYKHALİ, Mahsa
Gençer, Nevzat Güneri

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Harmonic Motion Microwave Doppler Imaging (HMMDI) method is recently proposed as a non-invasive hybrid breast imaging technique for tumor detection. In this method, local harmonic motion is generated in the tissue using a focused ultrasound probe. A narrow-band microwave signal is transmitted to the tissue. The Doppler component of the scattered signal, which depends on the dielectric and elastic properties of the vibrating region, is sensed [1]. Since the measurements obtained from HMMDI is directly related with phase noise, there are some studies to reduce phase noise of RF transmitting signal. In this work having a pure signal with ultra-low phase noise (-140dBc/Hz@1MHz) is one of the main goals to achieve the desired results at the proceeding steps. In addition the signal should be in (2-6GHz) frequency ranges. Therefore, modelling a low phase noise PLL operating in high frequency ranges with the help of measurements and microwave simulation tool (ADS) planned. According to the simulation results the proposed VCO provided a Phase Noise of about -137.64dBc/Hz @1MHz that is very acceptable in comparison to other provided complex VCO structures [2-5]. In addition generate 2.76 GH oscillating frequency.

Subject Keywords

Phase locked loops, Doppler effect, Phase frequency detector, Phase noise, Radio frequency, Harmonic analysis, Microwave imaging

URI

https://hdl.handle.net/11511/46757

DOI

https://doi.org/10.1109/biyomut.2015.7369449

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

M. KEYKHALİ and N. G. Gençer, “Low phase noise phase locked loop frequency synthesizer design for breast cancer detection,” 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46757.