Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Esmaeil Najafi Aghdam"'
Publikováno v:
Archives of Acoustics, Vol vol. 48, Iss No 1, Pp 25-38 (2023)
A numerical study and simulation of breast imaging in the early detection of tumors using the photoacoustic (PA) phenomenon are presented. There have been various reports on the simulation of the PA phenomenon in the breast, which are not in the real
Externí odkaz:
https://doaj.org/article/a370827993794eaa906f8e657daabe5d
Publikováno v:
Microwave and Optical Technology Letters. 65:2456-2463
Publikováno v:
Journal of The Institution of Engineers (India): Series B. 104:115-128
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 68:607-611
This brief presents a low power low noise amplifier (LNA) in TSMC $0.18~{\mu }\text{m}$ CMOS technology for ultrasound imaging probes. The proposed LNA is based on a trans-impedance amplifier (TIA). Single-ended to differential conversion is realized
Publikováno v:
Analog Integrated Circuits and Signal Processing. 102:389-401
An analog-to-digital converter based on the time-interleaved delta-sigma modulator is a proper method for high-speed ADCs. Time-interleaved delta-sigma modulators (TIDSM) can be successfully implemented with the development of the block digital filte
Publikováno v:
2021 Iranian International Conference on Microelectronics (IICM).
Autor:
Omid Qorbani, Esmaeil Najafi Aghdam
Publikováno v:
2021 Iranian International Conference on Microelectronics (IICM).
Publikováno v:
Circuits, Systems, and Signal Processing. 39:2776-2795
This paper presents a 922 MHz power-efficient configurable frequency-shift keying–on–off keying (FSK–OOK) phase-locked loop (PLL)-based transmitter. The proposed transmitter works as a multimode structure with configurable data rate and output
Publikováno v:
IEEE Transactions on Device and Materials Reliability. 19:226-232
This paper presents a simple compensation biasing circuit to enhance the reliability and variability of the low-power radio-frequency (RF) amplifier. The compensation function is achieved through a threshold voltage adjustment, which is realized by a
Publikováno v:
AEU - International Journal of Electronics and Communications. 99:236-246
The current paper aims at presenting a low-power second-order input-feedforward continuous-time (CT) ΔΣ modulator for audio applications. It uses a 4-bit asynchronous successive approximation register (SAR) quantizer which is more power efficient t