File Download
There are no files associated with this item.
Supplementary
-
Citations:
- Scopus: 0
- Appears in Collections:
Article: Design of a fifth-order analog predistorter for base station HPA of cellular mobile systems
Title | Design of a fifth-order analog predistorter for base station HPA of cellular mobile systems |
---|---|
Authors | |
Issue Date | 2011 |
Citation | Microwave Journal, 2011, v. 54 n. 8, p. 86-102 How to Cite? |
Abstract | This article presents the design of a fifth-order analog predistorterfor use in base station high power amplifiers (HPA). The predistorter employs two intermodulation (IM) signal generators with identical configuration, to individually generate the third- and fifth-order (IM3 and IM5) signals. The amplitudes and phases of the two IM signals generated are adjusted separately for cancellation of the third- and fifth-order intermodulation distortion products (IMDP3 and IMDP5) at the HPA output, making the tuning process of predistortion much easier. The predistorter is designed and studied by computer simulation, using two-tone and π/4-DQPSK signals, centered at 2.2 GHz in a practical base station 100 W HPA. For verification of the design, measurements are carried out on a prototyped-predistorter. Both simulation and measurement results show that very good agreement and excellent linearity improvement of the HPA can be achieved at an output power of 65.6 W. |
Persistent Identifier | http://hdl.handle.net/10722/155652 |
ISSN | 2023 Impact Factor: 0.3 2023 SCImago Journal Rankings: 0.119 |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sun, XL | en_US |
dc.contributor.author | Cheung, SW | en_US |
dc.contributor.author | Yuk, TI | en_US |
dc.date.accessioned | 2012-08-08T08:34:40Z | - |
dc.date.available | 2012-08-08T08:34:40Z | - |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | Microwave Journal, 2011, v. 54 n. 8, p. 86-102 | en_US |
dc.identifier.issn | 0192-6225 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/155652 | - |
dc.description.abstract | This article presents the design of a fifth-order analog predistorterfor use in base station high power amplifiers (HPA). The predistorter employs two intermodulation (IM) signal generators with identical configuration, to individually generate the third- and fifth-order (IM3 and IM5) signals. The amplitudes and phases of the two IM signals generated are adjusted separately for cancellation of the third- and fifth-order intermodulation distortion products (IMDP3 and IMDP5) at the HPA output, making the tuning process of predistortion much easier. The predistorter is designed and studied by computer simulation, using two-tone and π/4-DQPSK signals, centered at 2.2 GHz in a practical base station 100 W HPA. For verification of the design, measurements are carried out on a prototyped-predistorter. Both simulation and measurement results show that very good agreement and excellent linearity improvement of the HPA can be achieved at an output power of 65.6 W. | - |
dc.language | eng | en_US |
dc.relation.ispartof | Microwave Journal | en_US |
dc.title | Design of a fifth-order analog predistorter for base station HPA of cellular mobile systems | en_US |
dc.type | Article | en_US |
dc.identifier.email | Cheung, SW:swcheung@eee.hku.hk | en_US |
dc.identifier.email | Yuk, TI:tiyuk@eee.hku.hk | en_US |
dc.identifier.authority | Cheung, SW=rp00102 | en_US |
dc.identifier.authority | Yuk, TI=rp00210 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.scopus | eid_2-s2.0-80052352674 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-80052352674&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 54 | en_US |
dc.identifier.issue | 8 | en_US |
dc.identifier.spage | 86 | en_US |
dc.identifier.epage | 102 | en_US |
dc.identifier.scopusauthorid | Sun, XL=36926307400 | en_US |
dc.identifier.scopusauthorid | Cheung, SW=7202472784 | en_US |
dc.identifier.scopusauthorid | Yuk, TI=6603685705 | en_US |
dc.identifier.issnl | 0192-6225 | - |