Title :
Linearised mixer using frequency retranslation
Author :
Nesimoglu, T. ; Beach, M.A. ; Warr, P.A. ; MacLeod, J.R.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bristol Univ., UK
fDate :
12/6/2001 12:00:00 AM
Abstract :
A new linearisation technique using frequency retranslation for generating an error signal to predistort the input of a nonlinear mixer is presented. Results from a two-tone-test at 920 MHz yields a 25 dB reduction in the distortion products and also minimal adjacent channel interference was observed with a π/4 differential quadrature phase shift keying modulated carrier
Keywords :
UHF mixers; adjacent channel interference; differential phase shift keying; linearisation techniques; nonlinear distortion; quadrature phase shift keying; 920 MHz; adjacent channel interference; carrier modulation; differential quadrature phase shift keying; distortion product; error signal generation; frequency retranslation; input predistortion; linearisation technique; nonlinear mixer; two-tone test;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20011018
