LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Koulouzis, Helias; Budimir, Djuradj
Publisher: IEEE
Languages: English
Types: Part of book or chapter of book
Subjects: UOW3
An LDMOS RF power amplifier for RF multichannel wireless systems with improved IMD performance characteristics is presented. The application of two combined linearization methods is being tested with the help of circuit simulation software ADS. The injection of the fundamental signal's second harmonic in the RF amplifier, as well as a digital predistortion technique, is combined in order to achieve IMD improvement. By proper selection of phase and amplitude of the injected second harmonic signal, it is possible to reduce IMD products that have already been reduced by the well established method of digital predistortion.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • [1] Yongcai Hu, Jean Claude Mollier and Juan Obregon, “A New Method of Third-Order Intermodulation Reduction in Nonlinear Microwave Systems”. IEEE Transactions on Microwave Theory and Techniques, Vol. MTT-34, No 2, Febuary 1986, pp 245 - 250.
    • [2] C. S. Aitchison, M. Mbabele, M. R. Moazzam, D. Budimir, and F. Ali, 'Improvement of third order intermodulation products of RF and microwave amplifiers by injection', IEEE MTT Transactions on Microwave Theory and Techniques, pp. 1148-1154, Vol. MTT-49, No 6, June 2001.
    • [3] D. Budimir, H. Koulouzis and K. Williams, "LDMOS RF Power Amplifiers with Improved IMD Performance”, 34th European Microwave Conference Proc., Amsterdam, The Netherlands, 11-15 October 2004.
    • [4] H. Koulouzis and D. Budimir, "Design of High Efficiency LDMOS Power Amplifiers”, Postgraduate Research Conference in Electronics, Photonics, Communications & Networks, and Computing Science (PREP'04), 5-7, April, 2004, University of Hertfordshire, UK.
    • [5] C. Fager, N.B. de Carvalho, J.C. Pedro and H. Zirath, “Intermodulation Distortion Behaviour in LDMOS Tranzistor Amplifiers”, IEEE MTT-S Digest, pp.131-134, 2002.
    • [6] J. K. Cavers, “ Amplifier Linearization Using a Digital Predistortion with Fast Adaptation and Low Memory Requirements“ , IEEE Transactions on Vehicular Technology, Vol. 39, No. 4, pp. 374-382, November 1990.
    • [7] A. S. Wright and W. G. Durtler, “Experimental Performance of an Adaptive Digital Linearized Power Amplifier “ , IEEE Transactions on Vehicular Technology, Vol. 41, No. 4, pp. 395-400, November 1992.
  • No related research data.
  • No similar publications.

Share - Bookmark

Download from

Cite this article