Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Firas Mohammed Ali Al-Raie"'
Autor:
Firas Mohammed Ali Al-Raie
Publikováno v:
Engineering and Technology Journal, Vol 34, Iss 11A, Pp 1944-1958 (2016)
High efficiency RF power amplifiers are increasingly needed in modern mobile communication systems to reduce the battery size and power supply consumption. Class-F RF power amplifiers offer improved efficiency over the conventional class-B power ampl
Externí odkaz:
https://doaj.org/article/9ea326861c6c482888c30870aeb75929
Design and Implementation of an Interface Circuit for DC Motor Speed Control Using the PWM Technique
Autor:
Firas Mohammed Ali Al-Raie
Publikováno v:
Engineering and Technology Journal, Vol 31, Iss A 6, Pp 1204-1212 (2013)
In this paper an electronic interface circuit for controlling the speed of a small permanent magnet DC motor with the aid of a personal computer (PC) has been designed and implemented. The basic operation of the proposed circuit is based on the pulse
Externí odkaz:
https://doaj.org/article/9154c8b1b5f147b9aa2f048f54016684
Autor:
Firas Mohammed Ali Al-Raie
Publikováno v:
Journal of Engineering and Sustainable Development, Vol 20, Iss 2 (2016)
Negative resistance radio frequency (RF) and microwave oscillators are widely used in modern wireless communication systems. In these circuits, the active device is imposed to work in the unstable region in order to present a negative resistance at i
Externí odkaz:
https://doaj.org/article/9bc5bad646dc4a4495225e4436680e8f
Publikováno v:
2018 Third Scientific Conference of Electrical Engineering (SCEE).
In class-F RF power amplifiers, there are several methodologies used to characterize the RF power device in order to present the proper harmonic impedances at its terminals, the most widely used of which is the load-pull method. This paper presents a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73261a12ea19080c59f8065c3faa5e36
https://doi.org/10.1109/scee.2018.8684205
https://doi.org/10.1109/scee.2018.8684205
Autor:
Firas Mohammed Ali Al-Raie
Publikováno v:
2006 International RF and Microwave Conference.
The objective of this article is the design and implementation of wideband RF power amplifiers that can be used in different solid-state wireless transmitting systems. A systematic technique has been devised and confirmed. This technique uses the RF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8765228ffdd06681da4ec922cf990d3a
https://doi.org/10.1109/rfm.2006.331033
https://doi.org/10.1109/rfm.2006.331033