Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Morteza Nick"'
Autor:
Morteza Nick, Amir Mortazawi
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 58:2764-2771
A new technique based on an adaptive input-power distribution is introduced to overcome the limitations of practical Doherty power amplifiers. The proposed Doherty amplifier employs an extended-resonance power-divider at its input. By taking advantag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c41e042bcdcea1b0adc042173d507e3
https://doi.org/10.1109/tmtt.2010.2077930
https://doi.org/10.1109/tmtt.2010.2077930
Autor:
Amir Mortazawi, Morteza Nick
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 58:1133-1139
A very low phase-noise planar X -band oscillator employing an active resonator has been demonstrated. The high frequency selectivity of the active filter, used as the resonator, is the key factor in phase-noise reduction. A design procedure to achiev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01362f3353a240baebfb3dc3aedb9a33
https://doi.org/10.1109/tmtt.2010.2045572
https://doi.org/10.1109/tmtt.2010.2045572
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 57:1959-1965
In this paper, a low phase-noise planar oscillator employing an elliptic bandpass filter as a frequency stabilization element within its feedback loop is presented. The oscillator phase noise is significantly reduced by taking advantage of the group-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b419329a8251364ea3b25f520ae332c
https://doi.org/10.1109/tmtt.2009.2025424
https://doi.org/10.1109/tmtt.2009.2025424
Publikováno v:
2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
A dual band (2G/5G) IEEE 802.11b/g/n/ac wide-band AM-AM envelope feedback power amplifier with digital pre-distortion is demonstrated in 40nm CMOS. This architect effectively improves both EVM and spectrum mask up to 20.9dBm in 40MHz bandwidth at 2G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85cee82bb9bebf883091cdc13b3d862a
https://doi.org/10.1109/rfic.2015.7337720
https://doi.org/10.1109/rfic.2015.7337720
Autor:
Amir Mortazawi, Morteza Nick
Publikováno v:
2011 IEEE MTT-S International Microwave Symposium.
An X-band VCO is designed by employing a compact tunable high-Q negative-resistance resonator. The implemented active resonator not only provides a high degree of frequency-selectivity, but also initiates and sustains the oscillations. The loaded-qua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3392085894faa5559ea134fce0c9447e
https://doi.org/10.1109/mwsym.2011.5972905
https://doi.org/10.1109/mwsym.2011.5972905
Autor:
Morteza Nick, Amir Mortazawi
Publikováno v:
2010 IEEE MTT-S International Microwave Symposium.
This paper describes a method for the design of a low phase-noise planar oscillator based on a compact low-noise active elliptic filter for its frequency stabilization. The phase-noise of the oscillator is significantly reduced by taking advantage of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc9ea330c239f579931aefa103833e33
https://doi.org/10.1109/mwsym.2010.5517556
https://doi.org/10.1109/mwsym.2010.5517556
Autor:
Morteza Nick, Amir Mortazawi
Publikováno v:
2008 IEEE MTT-S International Microwave Symposium Digest.
A Doherty power amplifier using an extended resonance power divider is designed for linearity improvement. Taking advantage of the class C amplifier input admittance variations as a function of input power level, the extended resonance power divider
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::283166c3173678d45bde4f2ea343a37e
https://doi.org/10.1109/mwsym.2008.4633193
https://doi.org/10.1109/mwsym.2008.4633193