LOCAL OSCILLATOR UNCORRELATED PHASE NOISE ANALYSIS FOR MILLIMETER-WAVE PASSIVE IMAGER BHU-2D FREQUENCY SYNTHESIZER

A nontrivial phase noise analysis method is proposed for frequency synthesizer of a passive millimeter-wave synthetic aperture interferometric radiometer (SAIR) imager for concealed weapon detections on human bodies with high imaging rates. The frequency synthesizer provides local oscillator signals for both millimeter-wave front ends and intermediate frequency IQ demodulators for the SAIR system. The influence of synthesizer phase noise in different offset frequency ranges on the visibility phase errors has been systematically investigated with noise requirements drawn, and the integrated RMS phase error could represent uncorrelated phase noise effects in the most critical offset frequency range for visibility error control. An analytical phase noise simulation method is proposed to guide synthesizer design. To conclude, the phase noise effects on SAIR visibility errors have been concretized to noise design requirements, and good agreements have been observed between simulation and measurement results. The frequency synthesizer designed has been successfully in operation in BHU-2D-U system.

Download Full-text

Local Oscillator Phase Noise and its effect on Correlation Millimeter Wave Receiver Performance

2006 7th International Symposium on Antennas, Propagation & EM Theory ◽

10.1109/isape.2006.353218 ◽

2006 ◽

Cited By ~ 2

Author(s):

Junjie Li ◽

Guolong Wan ◽

Jungang Miao ◽

Shan Yang

Keyword(s):

Phase Noise ◽

Millimeter Wave ◽

Local Oscillator ◽

Receiver Performance ◽

Oscillator Phase Noise ◽

Millimeter Wave Receiver ◽

Oscillator Phase

Download Full-text

A Low Phase-Noise Ka-Band Hybrid Frequency Synthesizer for Millimeter Wave Seeker

The Journal of Korean Institute of Electromagnetic Engineering and Science ◽

10.5515/kjkiees.2011.22.11.1117 ◽

2011 ◽

Vol 22 (11) ◽

pp. 1117-1124

Author(s):

Ju-Hyun Lim ◽

Hae-Jin Han

Keyword(s):

Phase Noise ◽

Millimeter Wave ◽

Frequency Synthesizer ◽

Ka Band ◽

Hybrid Frequency ◽

Low Phase Noise

Download Full-text

Influence of Local Oscillator Phase Noise on the Resolution of Millimeter-Wave Spectral-Line Radiometers

IEEE Transactions on Instrumentation and Measurement ◽

10.1109/tim.1979.4314790 ◽

1979 ◽

Vol 28 (2) ◽

pp. 169-171

Keyword(s):

Spectral Line ◽

Phase Noise ◽

Millimeter Wave ◽

Local Oscillator ◽

Oscillator Phase Noise ◽

Oscillator Phase

Download Full-text

Opto-Electronic Oscillators for Micro- and Millimeter Wave Signal Generation

Electronics ◽

10.3390/electronics10070857 ◽

2021 ◽

Vol 10 (7) ◽

pp. 857

Author(s):

Mehmet Alp Ilgaz ◽

Bostjan Batagelj

Keyword(s):

Phase Noise ◽

Millimeter Wave ◽

Delay Line ◽

Access Network ◽

Local Oscillator ◽

Signal Generation ◽

High Frequency Signal ◽

Wave Signal ◽

Noise Characteristics ◽

Low Phase Noise

High-frequency signal oscillators are devices needed for a variety of scientific disciplines. One of their fundamental requirements is low phase noise in the micro- and millimeter wave ranges. The opto-electronic oscillator (OEO) is a good candidate for this, as it is capable of generating a signal with very low phase noise in the micro- and millimeter wave ranges. The OEO consists of an optical resonator with electrical feedback components. The optical components form a delay line, which has the advantage that the phase noise is independent of the oscillator’s frequency. Furthermore, by using a long delay line, the phase noise characteristics of the oscillator are improved. This makes it possible to widen the range of possible OEO applications. In this paper we have reviewed the state of the art for OEOs and micro- and millimeter wave signal generation as well as new developments for OEOs and the use of OEOs in a variety of applications. In addition, a possible implementation of a centralized OEO signal distribution as a local oscillator for a 5G radio access network (RAN) is demonstrated.

Download Full-text