A broadband polynomial predistorter for reconfigurable radio

T Nesimoglu, CN Canagarajah, JP McGeehan

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

16 Citations (Scopus)
498 Downloads (Pure)


An analogue polynomial predistorter working at RF is presented. It is capable of operating at multiple frequency bands over a wide linearisation bandwidth. These are important features for a reconfigurable radio application. The technique approximates the inverse of the amplifier transfer function up to third-order (cubic) nonlinearity by using polynomial functions. Theoretical analysis shows that the performance of the technique is limited more by the generation of additional fifth-order IMD (IM5), than the gain and phase matching of the predistorter. The measured two-tone tests at different frequency bands show 13 dB suppression of third-order IMD (IM3) is possible over 40 MHz tone separation. A 30 dB IM3 reduction can be achieved by increasing the IM5 by 9 dB. The research will continue by extending the predistorter to include higher orders of nonlinearity for a larger improvement in IMD suppression.
Translated title of the contributionA broadband polynomial predistorter for reconfigurable radio
Original languageEnglish
Title of host publicationVehicular Technology Conference 2001 (VTC 2001-Spring), Rhodes
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1968 - 1972
Number of pages5
ISBN (Print)0780367286
Publication statusPublished - May 2001
Event53rd Vehicular Technology Conference 2001 (VTC 2001-Spring) - Rhodes, Greece
Duration: 1 May 2001 → …


Conference53rd Vehicular Technology Conference 2001 (VTC 2001-Spring)
Period1/05/01 → …

Bibliographical note

Conference Proceedings/Title of Journal: IEEE 53rd Vehicular Technology Conference, 2001 (VTC 2001-Spring)
Rose publication type: Conference contribution

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