Amplifiers for RF and microwave multichannel wireless systems

Budimir, Djuradj (2001) Amplifiers for RF and microwave multichannel wireless systems. In: 2001 International Symposium on Electron Devices for Microwave and Optoelectronic Applications. IEEE, Los Alamitos, USA, pp. 261-265. ISBN 078037049X


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An amplifier for RF and microwave multichannel wireless systems where the third order IM distortion has been reduced is presented. The injection of the difference frequency of the two input signals in the amplifier together with the n fundamental signals will produce additional IM products at the output. By proper selection of phase and amplitude of the injected difference frequency signal, it is possible to make the third order IM products produced by the second harmonics and the original third order IM products out of phase and equal in amplitude. As a result third order IM products will be eliminated, in principle. The experimental results on a commercially available amplifier are presented

Item Type: Book Section
Uncontrolled Keywords: UHF amplifiers, harmonics, intermodulation distortion microwave amplifiers, microwave links, radio links, 880 MHz, RF multichannel wireless systems, distortion reduction, high efficiency amplifier, injected difference frequency signal, low distortion amplifier, microwave multichannel wireless systems, nonlinear amplifier, second harmonics, third order IM distortion, third order IMD, third-order IM products elimination
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 14 Feb 2007
Last Modified: 11 Aug 2010 14:31

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