Notice of Violation of IEEE Publication PrinciplesSingle and Dual Loop Ring Oscillator Based Frequency Synthesizers for Broadband Tuner Applications

Notice of Violation of IEEE Publication Principles

"Single and Dual Loop Ring Oscillator Based Frequency Synthesizers for Broadband Tuner Applications"
by A. Maxim,
in the Proceedings of the Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE
3-5 June 2007 Page(s):225 - 228

After careful and considered review, it has been determined that the above paper is in violation of IEEE\´s Publication Principles.

Specifically, the paper contains information that Adrian Maxim admits had been falsified. In response to an inquiry on this misconduct, Mr. Maxim acknowledged that the following people who have been listed as co-authors on several of his papers are fabricated names and that he is the only author:

C. Turinici, D. Smith, S. Dupue, M. Gheorge, R. Johns, D. Antrik

Additionally, in papers by Mr. Maxim that have co-authors other than those listed above, it was discovered in some cases that he had not consulted with them while writing the papers, and submitted papers without their knowledge.

Although Mr. Maxim maintains that not all of the data is falsified, IEEE nevertheless cannot assure the integrity of papers posted by him because of his repeated false statements.

Due to the nature of this violation, reasonable effort should be made to remove all past references to the above paper, and to refrain from any future references.This paper presents two ring oscillator based frequency synthesizers that achieve low phase noise and low spur level, compatible with the demanding DVB-S satellite and DVB-T/C terrestrial and cable TV applications. A single-loop 0.9-2.2 GHz integer-N PLL using a fully-integrated noise attenuator and was used for low-IF DVB-S/S2 tuners, achieving a <1.3degrms double sided integrated phase noise and <-50 dBc reference and coupled supply or substrate spurs. A dual-PLL 50-950 MHz integer-N synthesizer using a sample and hold discrete loop filter was realized for DVB-T/C tuners,- achieving <-80 dBc spurious tones and <0.8deg integrated phase noise. Both wide bandwidth PLLs use a low phase noise crystal oscillator with boosted amplitude and a sub -150 dBc/Hz white phase noise reference clock buffer. Ring VCO PLLs bring a 5-to-10x die area reduction in comparison with established multi LC-VCO synthesizers at the price of about 2-to-3x power increase.