Automated cancellation of harmonics using feed-forward filter reflection for radar transmitter linearization

Kyle A. Gallagher, Gregory J. Mazzaro, Ram Mohan Narayanan, Kelly D. Sherbondy, Anthony F. Martone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Microwave power amplifiers often operate in the nonlinear region to maximize efficiency. However, such operation inevitably produces significant harmonics at the output, thereby degrading the performance of the microwave systems. An automated method for canceling harmonics generated by a power amplifier is presented in this paper. Automated tuning is demonstrated over 400 MHz of bandwidth with a minimum cancellation of 110 dB. The intended application for the harmonic cancellation is to create a linear radar transmitter for the remote detection of non-linear targets. The signal emitted from the non-linear targets is often very weak. High transmitter linearization is required to prevent the harmonics generated by the radar itself from masking this weak signal...

Original languageEnglish (US)
Title of host publicationRadar Sensor Technology XVIII
PublisherSPIE
ISBN (Print)9781628410143
DOIs
StatePublished - Jan 1 2014
EventRadar Sensor Technology XVIII - Baltimore, MD, United States
Duration: May 5 2014May 7 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9077
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherRadar Sensor Technology XVIII
CountryUnited States
CityBaltimore, MD
Period5/5/145/7/14

Fingerprint

radar transmitters
Radar transmitters
linearization
Feedforward
Cancellation
Power amplifiers
Linearization
cancellation
Transmitter
Radar
Harmonic
Filter
Microwave amplifiers
harmonics
filters
Power Amplifier
power amplifiers
Microwave
Transmitters
Tuning

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Gallagher, K. A., Mazzaro, G. J., Narayanan, R. M., Sherbondy, K. D., & Martone, A. F. (2014). Automated cancellation of harmonics using feed-forward filter reflection for radar transmitter linearization. In Radar Sensor Technology XVIII [907703] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9077). SPIE. https://doi.org/10.1117/12.2051431
Gallagher, Kyle A. ; Mazzaro, Gregory J. ; Narayanan, Ram Mohan ; Sherbondy, Kelly D. ; Martone, Anthony F. / Automated cancellation of harmonics using feed-forward filter reflection for radar transmitter linearization. Radar Sensor Technology XVIII. SPIE, 2014. (Proceedings of SPIE - The International Society for Optical Engineering).
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Gallagher, KA, Mazzaro, GJ, Narayanan, RM, Sherbondy, KD & Martone, AF 2014, Automated cancellation of harmonics using feed-forward filter reflection for radar transmitter linearization. in Radar Sensor Technology XVIII., 907703, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9077, SPIE, Radar Sensor Technology XVIII, Baltimore, MD, United States, 5/5/14. https://doi.org/10.1117/12.2051431

Automated cancellation of harmonics using feed-forward filter reflection for radar transmitter linearization. / Gallagher, Kyle A.; Mazzaro, Gregory J.; Narayanan, Ram Mohan; Sherbondy, Kelly D.; Martone, Anthony F.

Radar Sensor Technology XVIII. SPIE, 2014. 907703 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9077).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Gallagher KA, Mazzaro GJ, Narayanan RM, Sherbondy KD, Martone AF. Automated cancellation of harmonics using feed-forward filter reflection for radar transmitter linearization. In Radar Sensor Technology XVIII. SPIE. 2014. 907703. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.2051431