Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

Linearity improvement using a modified derivative superposition method in cascaded stages amplifier

Linearity improvement using a modified derivative superposition method in cascaded stages amplifier

For access to this article, please select a purchase option:

Buy article PDF
$19.95
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Microwaves, Antennas & Propagation — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

A modified derivative superposition (DS) method using cascaded stages transistor is described. It uses the third order intermodulation (IMD3) current generated from the preceding stage to cancel those at the output of the following stage. This analysis demonstrates that an IMD3 minimum occurs near the output power compression point. A balanced X-band linear power amplifier (PA) monolithic microwave integrated circuit (MMIC) using this concept is presented. The results of measurement showed a carrier-to-IMD3 ratio (C/I3) improvement more than 30 dB compared with the conventional cascaded stages configuration.

References

    1. 1)
    2. 2)
    3. 3)
      • Sveshtarov, J.: `A distributed linearization technique for multistage high power amplifiers', 36thEuropean Microwave Conf., 2006.
    4. 4)
      • Koulouzis, H., Budimir, D.: `Distortion correction of LDMOS power amplifiers using hybrid RF second harmonic injection/digita predistortion linearization', IEEE Mediterranean Electrotechnical Conf., 2006, p. 177–179.
    5. 5)
      • Kim, H., Kim, M., Choi, K., Bae, J.H., Yoo, H., Yang, Y.: `1.9 GHz band highly linear 2-stage power amplifier MMIC based on InGaP/GaAs HBT', APMC Microwave Conf., 2009.
    6. 6)
      • Dardenne, S., Duvanaud, C., Allam, R.: `Cancellation of third order intermodulation currents in a two-stages amplifier topology', IEEE MTT-S Int. Microwave Symp. Digest, 2003.
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
      • Webster, D.R., Ataei, G.R., Parker, A.E., Haigh, D.G.: `Developments in linear and nonlinear FET circuit design using derivative superposition', IEE Colloquium on Analog Signal Processing, 1998.
    13. 13)
    14. 14)
    15. 15)
    16. 16)
      • Vuolevi, J., Manninen, J., Rahkonen, T.: `Memory effects compensation in RF power amplifiers by using envelope injection technique', IEEE Radio and Wireless Conf., 2001, p. 257–260.
    17. 17)
    18. 18)
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-map.2011.0561
Loading

Related content

content/journals/10.1049/iet-map.2011.0561
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address