In this paper, we present a broadband low-noise amplifier (LNA), using active-feedforward noise-cancellation and complementary n/pMOS configurations. Based on traditional common-gate (CG) common-source (CS) noise canceling topology, the applied active feedforward stage reduces CG's dc current alleviates its resistive load tradeoff between headroom. Meanwhile, follows same cancellation (NC) principle as CG transistors. A low figure is thus obtained. addition, configuration used to cancel...

A CMOS baseband-active-feedback receiver frontend with passive voltage-commutating mixers is proposed. The active feedback baseband enables in-band signal amplification and out-of-band blocker interference suppression by constructing the RF bandpass filter BB lowpass filter, simultaneously. embedded in current mirrors significantly reduce power requirement for LO generator. stacked n/pMOS structure commonly adopted to further improve efficiency. designed a standard 65 nm process. Simulation...

A mixer-first receiver frontend with resistive-feedback baseband is proposed. The combination of G <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">m</inf> and transimpedance amplifier (TIA) designed to cover a wide frequency range for high data rate applications. N-path filtering at the RF side enhanced BB inhibit out-of-band blocker interferences. fabricated in 65 nm CMOS. Measurement results display an NF 2.3 dB conversion gain 33.5 2 GHz f...

Microwave-induced thermoacoustic tomography (MITAT) holds significant promise in biomedical applications. It creates images using ultrasonic sensors to detect signals induced by microwaves. The key generating that accurately reflect the fact is achieve sufficient and uniform microwave power absorption of testing target, which closely tied illumination provided antenna. In this article, we introduce a novel design implementation an ultra-wideband water immersion antenna for MITAT system. We...

A spread spectrum technique and apparatus for reducing electromagnetic interference (EMI) in class D amplifier are introduced. The utilizes very simple hardware, where the switching frequency of a is dynamically varied from 1 to 1.22MHz. This achieved by changing charging current an oscillator random fashion, through 6 switches that controlled digital signals. Compared fixed operation, signal was greatly flattened reduction 6dB EMI without efficiency performance degradations obtained.

An LNA-first receiver frontend including the main/auxiliary paths is proposed. A frequency-translational noise cancellation attained at input of a transimpedance amplifier (TIA) shared by dual paths. The RF matching examined, based on an up-conversion baseband (BB) parasitic. TIA customized to provide wideband coverage and high-order filtering. With current mirrors applied RF/BB, presented current-mode has been fabricated in 65 nm CMOS. Measurements show that BB bandwidth covers 425 MHz...

In this paper, a <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$0.18~{\mu }\text{m}$ </tex-math></inline-formula> n-type lateral DMOS (LDMOS) is researched. By optimized manufacture process and device structures, ultra-low specific on resistance ( notation="LaTeX">${R} _{\mathrm {onsp}}$ ) achieved. Pbody drift region are all full self-aligned implantation (FSAI). For different the uniformities of dc...

Metal-organic framework (MOF) material is one of the most promising porous nanomaterials for volatile organic compound (VOC) adsorption and sensing. The large surface area high porosity MOF contribute to sensitivity MOF-based VOC sensors. In this study, we engineer coating zeolitic imidazolate ZIF-8 grown on a long-period fiber grating (LPFG) acetone vapor Being periodic structure formed in single-mode optical fiber, an LPFG designed couple light from core cladding at specific resonance...

An inductive kickback absorption scheme without a power Zener diode and large capacitor is presented. Instead of using capacitor, the proposed uses control circuit to turn on transistors available in an H-bridge save die size, which are used absorb energy. Furthermore, voltage capable autoadjusting as changing supply. The has been realized 0.6- United Microelectronics Corporation (UMC) 18-V bipolar/CMOS/DMOS process. test results demonstrate that could rapidly effectively.

Microwave-induced thermoacoustic tomography (MITAT) holds significant promise in biomedical applications. It creates images using ultrasonic sensors to detect signals induced by microwaves. The key generating that accurately reflect the fact is achieve sufficient and uniform microwave power absorption of testing target, which closely tied illumination provided antenna. In this article, we introduce a novel design implementation an ultra-wideband water immersion antenna for MITAT system. We...

A new 500-V ON-state breakdown voltage (ON-BV) parasitic JFET is proposed in this paper. Compared with traditional structures, a special junction field-effect transistor (JFET) region located at the edge of LDMOS. The drift length larger than that LDMOS region. When works high-voltage on-state, carriers are separated from by transition close to Then peak electric field and impact ionization rate suppressed. It helps device achieve high ON-BV. Experimental results show ON-BV structure 500 V,...

In this paper, by using the baseband noise cancellation, a CMOS mixer-first analog receiver with power reduction is proposed. Based on current-mirror transimpedance amplifier structure, positive capacitive feedback applied to manipulate poles/zeros location, enabling wide bandwidth and out-of-band second-order filtering profile. The additional radio frequency N-path 40dB/dec roll-off absorb interferences. presented frontend fabricated in standard 65 nm process. Measured results demonstrate...

In this paper, we present a broadband low-noise amplifier (LNA), using active-feedforward noise-cancellation and complementary n/pMOS configurations. Based on traditional common-gate(CG) common-source(CS) noise canceling topology, the applied active feedforward stage reduces CG's dc current alleviates its resistive load tradeoff between headroom. Meanwhile, follows same cancellation (NC) principle as CG transistors. A low figure is thus obtained. addition, configuration used to cancel...

In this paper, a mixer-first receiver frontend with dual-feedback baseband is proposed. The negative resistive and positive capacitive feedback paths are both applied to single-stage inverter-based operational transconductance amplifier (OTA) fewer poles, cover wide BB frequency range. [Formula: see text]-path filtering at the RF side second-order inhibit out-of-band blocker interferences. designed in 65 nm CMOS. Simulation results display an NF of 2.1 dB across 306 MHz IF bandwidth, maximum...

In recent years, various approaches for GH (Goos−Hänchen) displacement control have been proposed, including waveguide structures, different material interfaces, and other physical phenomena (such as surface plasmon resonance, etc.), which make flexible controllable. Herein, the magneto‐optic in quasiperiodic gradient 1D photonic crystals is introduced. The variation of by changing magnetic field periodic structures shown. thickness initial determined change thickness, then tunable observed...