A5030275879- Radio Frequency Integrated Circuit Design
- Acoustic Wave Resonator Technologies
- Microwave Engineering and Waveguides
- Advanced Memory and Neural Computing
- Advancements in PLL and VCO Technologies
- EEG and Brain-Computer Interfaces
- Neuroscience and Neural Engineering
- Wireless Body Area Networks
- Advanced Power Amplifier Design
- Analog and Mixed-Signal Circuit Design
- Semiconductor Quantum Structures and Devices
- Electromagnetic Compatibility and Noise Suppression
- Ferroelectric and Negative Capacitance Devices
- Molecular Communication and Nanonetworks
- Ultra-Wideband Communications Technology
- Atomic and Subatomic Physics Research
- Spectroscopy Techniques in Biomedical and Chemical Research
Westlake University
2023-2025
Sahand University of Technology
2018-2021
Urmia University
2017
A balun inductorless wideband low noise amplifier (LNA) with active loads is proposed for multi-standard radio applications. The cancelling and current reuse techniques are combined to mitigate the need high power consumption in conventional LNAs. This adds a degree of freedom transconductance common gate stage (g mCG ). As result, lower g without degrading input matching, allows large scaling factor source (CS) technique. Post-layout simulation results LNA circuit 180 nm RF CMOS process...
The channel count of implantable neural interfaces has grown rapidly as brain-machine interface applications emerge from basic brain disorder monitoring, motor control, to voice reconstruction. However, limited on-implant power and area budget hinder the development multi-channel integration. As shown in Fig. 1, Although time-division multiplexing (TDM) before ADC [1], [2] alleviates consumption over architecture without TDM [3], recording front-end still occupies large on-chip area,...
This paper presents a low power wideband RF receiver front-end in CMOS 180 nm technology that operates between 0.3 and 4.7 GHz. The mixer has quadrature current commutating gilbert cell configuration utilizes novel broadband noise-canceling balanced balun-LNA as the transconductance stage. balun LNA an additional noise-reduction technique enhances its performance noticeably. Both of common gate source stages are matched by employing equal-sized transistors biased with same currents load...
The use of Brain-Machine Interfaces (BMIs) in neuroscience research and neural prosthetics has seen widespread application. With the technology trend shifting from wearable to implantable wireless BMIs featuring increasing channel counts, volume data generated requires impractically high bandwidth transmission power for implants. In this paper, we present NeuroBMI, a novel neuromorphic BMI that leverages unified strategy signal sampling, processing, transmission. proposed NeuroBMI reduces...
By acquiring and transmitting the human brain's neural activities, brain-machine interface (BMI) technology enables direct communication between brain an external device. This opens up new ways to investigate function treat neurological disorders. However, increasing demands for large-scale recording impose a challenge wireless telemetry module, requiring it provide high data rate within restricted power budget. In this paper, We present comparative analysis of commonly adopted transmission...
The application of Brain-Computer Interfaces (BCIs) in neuroscience and neurological disorders has witnessed extensive adoption. With the shift towards implantable wireless BCIs featuring higher channel counts, surge data volume presents challenges bandwidth transmission power. On-implant feature extraction spike detection are crucial to reduce bandwidth, but suffers from limited power bud-gets. Optimizing consumption while maintaining accuracy thus vital for efficient BCI systems. In this...
In this article, we present a novel approach for designing low-power, low-area impulse radio ultra-wideband (IR-UWB) noncoherent receiver capable of achieving data rate 100 Mbps. Our proposed demonstrates the ability to demodulate ON-OFF keying pulse streams across entire lower frequency band defined by Federal Communication Commission UWB applications. The key components include reconfigurable differential two-stage low-noise amplifier, fully squarer, narrow-band interface rejection...
The conventional active CG-CS balun low-noise amplifiers (LNAs) with asymmetric outputs exploit a relatively weak output balance, limited IIP2, and high power consumption. This study presents wideband balun-LNA symmetrical outputs. proposed LNA utilizes capacitive cross-coupled (CCC) technique between resistor loads to achieve balancing, thereby enhancing the gain linearity performance. In addition, double noise reduction techniques are exploited implement outputs, reduce consumption, avoid...
This study presents a spread spectrum clock generator (SSCG) circuit for high-speed applications. The proposed SSCG adopts phased locked loop with two dual voltage-controlled oscillators and frequency modulation implemented novel control unit to achieve the desired spectrum-spreading profile. consists of an analogue charge pump-based comparator that can determine deviation from reference frequency. Using this simplifies mitigates design constraints, particularly speed requirements unit....