Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Muhammad Touqir Pasha"'
Publikováno v:
IET Circuits, Devices & Systems. 13:273-278
Linearity and efficiency are important parameters in determining the performance of any wireless transmitter. Pulse-width modulation (PWM) based transmitters offer high efficiency but suffer from low linearity due to image and aliasing distortions. A
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 65:1634-1638
An all-digital pulse width modulated (PWM) transmitter using outphasing is proposed. The transmitter uses PWM to encode the amplitude, and outphasing for enhanced phase control. In this way, the phase resolution of the transmitter is doubled. The pro
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 65:758-768
This paper presents an all-digital polar pulsewidth modulated (PWM) transmitter for wireless communications. The transmitter combines baseband PWM and outphasing to compensate for the amplitude error in the transmitted signal due to aliasing and imag
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 64:912-916
This brief presents a novel pulse-width modulation (PWM) transmitter architecture that compensates for aliasing distortion by combining PWM and outphasing. The proposed transmitter can use either switch-mode power amplifiers (PAs) or linear PAs at pe
Autor:
Muhammad Touqir Pasha
Publikováno v:
Linköping Studies in Science and Technology. Dissertations ISBN: 9789176851531
Electronic devices with wireless connectivity are fast becoming a part of daily life. According to some estimates, in the next five years, 10 billion new devices with internet connectivity would be ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c8365d7d342a380fb98c6017779da00
https://doi.org/10.3384/diss.diva-153729
https://doi.org/10.3384/diss.diva-153729
Publikováno v:
NORCAS
All-digital implementations of PWM-based wireless transmitters are gaining popularity. Unlike baseband PWM, RF-PWM has relaxed filtering requirements and is preferred due to a smaller chip size. This paper is aimed to highlight the differences betwee
Publikováno v:
ECCTD
An all-digital delay locked loop (DLL) for use in an analog video front end (AFE) is presented. The DLL is designed for a wide input frequency range of 40–300 MHz to cater to a range of different video standards currently in use. The proposed DLL h
Publikováno v:
ECCTD
An 8-bit time-to-digital converter (TDC) for all-digital frequency-locked loops is presented. The selected architecture uses a Vernier delay line where the commonly used D flip-flops are replaced with a single enable transistor in the delay elements.
Publikováno v:
NORCHIP
A modified switching scheme for thermometer-to-binary encoders used in time-to-digital converters (TDCs) is presented. The proposed scheme enables power savings up to 40% for a 256 bit encoder by taking advantage of the operating nature of the TDCs a
Publikováno v:
ECCTD
An analysis of frequency control techniques for inverter based ring oscillators is presented. The aim of this study is to aid the circuit designer in architecture selection appropriate for a specific application. A brief discussion on ring oscillator