Harmonic boosting for high performance mixers

Autor: J. Laskar, B. Matinpour, Ching-Lang Lin, S. Chakraborty
Rok vydání: 2003
Předmět:
Zdroj: 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).
DOI: 10.1109/mwsym.2002.1011887
Popis: We propose a novel harmonic boosting technique for development of high performance subharmonic mixers. This technique alleviates major problems associated with the use of 4/sup th/ and higher order subharmonic mixers. By utilizing the odd-order harmonics of the main subharmonic LO, we demonstrate significant performance improvements while reducing the LO power. Measurements confirm a 6 dB savings in LO power level, up to 10 dB improvement in output P1dB and up to 6 dB improvement in conversion loss. Measurements also confirm that harmonic boosting does not degrade in-band LO leakage, IIP2 and dc offset levels, thus favoring its application in very-low-IF and direct conversion transceivers.
Databáze: OpenAIRE