Second harmonic zone injection for amplifier linearisation

T Nesimoglu; RJ Wilkinson; CN Canagarajah; JP McGeehan

doi:10.1109/VETEC.1999.778491

Second harmonic zone injection for amplifier linearisation

T Nesimoglu, RJ Wilkinson, CN Canagarajah, JP McGeehan

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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Abstract

Second harmonic zone (SHZ) injection is a feedback technique for reducing the intermodulation distortion (IMD) at the output of an amplifier, which is based on feeding the SHZ intermodulation products (IMP), back to the amplifier's input. The technique is analyzed theoretically and practical results demonstrate the linearisation performance. Two feedback prototypes were built, one using a frequency doubler and the other using a buffer amplifier as a distorter, where 14 dB and 13 dB improvement was obtained respectively in reducing the third order IMP (IMP3). The performance of the technique with changing frequency and input power level was also investigated.

Translated title of the contribution	Second Harmonic Zone Injection for amplifier linearisation
Original language	English
Title of host publication	Proc. IEE Vehicular Technology Conference (VTC), Texas
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	2353 - 2357
Volume	3
ISBN (Print)	0780355652
DOIs	https://doi.org/10.1109/VETEC.1999.778491
Publication status	Published - May 1999
Event	49th Vehicular Technology Conference 1999 (VTC 1999-Spring) - Houston, United States Duration: 1 May 1999 → …

Conference

Conference	49th Vehicular Technology Conference 1999 (VTC 1999-Spring)
Country/Territory	United States
City	Houston
Period	1/05/99 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: The authors would like to thank Lucent Technologies for their financial snpport.

Terms of use: Copyright © 1999 IEEE. Reprinted from Proceeding of IEEE Vehicular Technology Conference, 1999. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Keywords

Second Harmonic None (SHZ)
feedback amplifiers
land mobile radio
linearisation techniques

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10.1109/VETEC.1999.778491

Nesimoglu IEEE VTC 1999Accepted author manuscript, 427 KB

http://hdl.handle.net/1983/559

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title = "Second harmonic zone injection for amplifier linearisation",

abstract = "Second harmonic zone (SHZ) injection is a feedback technique for reducing the intermodulation distortion (IMD) at the output of an amplifier, which is based on feeding the SHZ intermodulation products (IMP), back to the amplifier's input. The technique is analyzed theoretically and practical results demonstrate the linearisation performance. Two feedback prototypes were built, one using a frequency doubler and the other using a buffer amplifier as a distorter, where 14 dB and 13 dB improvement was obtained respectively in reducing the third order IMP (IMP3). The performance of the technique with changing frequency and input power level was also investigated.",

keywords = "Second Harmonic None (SHZ), feedback amplifiers, land mobile radio, linearisation techniques",

author = "T Nesimoglu and RJ Wilkinson and CN Canagarajah and JP McGeehan",

note = "Rose publication type: Conference contribution Sponsorship: The authors would like to thank Lucent Technologies for their financial snpport. Terms of use: Copyright {\textcopyright} 1999 IEEE. Reprinted from Proceeding of IEEE Vehicular Technology Conference, 1999. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. ; 49th Vehicular Technology Conference 1999 (VTC 1999-Spring) ; Conference date: 01-05-1999",

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Nesimoglu, T, Wilkinson, RJ, Canagarajah, CN & McGeehan, JP 1999, Second harmonic zone injection for amplifier linearisation. in Proc. IEE Vehicular Technology Conference (VTC), Texas. vol. 3, Institute of Electrical and Electronics Engineers (IEEE), pp. 2353 - 2357, 49th Vehicular Technology Conference 1999 (VTC 1999-Spring), Houston, United States, 1/05/99. https://doi.org/10.1109/VETEC.1999.778491

Second harmonic zone injection for amplifier linearisation. / Nesimoglu, T; Wilkinson, RJ; Canagarajah, CN et al.
Proc. IEE Vehicular Technology Conference (VTC), Texas. Vol. 3 Institute of Electrical and Electronics Engineers (IEEE), 1999. p. 2353 - 2357.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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AU - Wilkinson, RJ

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AU - McGeehan, JP

N1 - Rose publication type: Conference contribution Sponsorship: The authors would like to thank Lucent Technologies for their financial snpport. Terms of use: Copyright © 1999 IEEE. Reprinted from Proceeding of IEEE Vehicular Technology Conference, 1999. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

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N2 - Second harmonic zone (SHZ) injection is a feedback technique for reducing the intermodulation distortion (IMD) at the output of an amplifier, which is based on feeding the SHZ intermodulation products (IMP), back to the amplifier's input. The technique is analyzed theoretically and practical results demonstrate the linearisation performance. Two feedback prototypes were built, one using a frequency doubler and the other using a buffer amplifier as a distorter, where 14 dB and 13 dB improvement was obtained respectively in reducing the third order IMP (IMP3). The performance of the technique with changing frequency and input power level was also investigated.

AB - Second harmonic zone (SHZ) injection is a feedback technique for reducing the intermodulation distortion (IMD) at the output of an amplifier, which is based on feeding the SHZ intermodulation products (IMP), back to the amplifier's input. The technique is analyzed theoretically and practical results demonstrate the linearisation performance. Two feedback prototypes were built, one using a frequency doubler and the other using a buffer amplifier as a distorter, where 14 dB and 13 dB improvement was obtained respectively in reducing the third order IMP (IMP3). The performance of the technique with changing frequency and input power level was also investigated.

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KW - feedback amplifiers

KW - land mobile radio

KW - linearisation techniques

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DO - 10.1109/VETEC.1999.778491

M3 - Conference Contribution (Conference Proceeding)

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BT - Proc. IEE Vehicular Technology Conference (VTC), Texas

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 49th Vehicular Technology Conference 1999 (VTC 1999-Spring)

Y2 - 1 May 1999

ER -

Second harmonic zone injection for amplifier linearisation

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