A5029718819- Radio Frequency Integrated Circuit Design
- Microwave Engineering and Waveguides
- Electromagnetic Compatibility and Noise Suppression
- Advancements in PLL and VCO Technologies
- Advanced Power Amplifier Design
- Millimeter-Wave Propagation and Modeling
- Semiconductor materials and devices
- Advancements in Semiconductor Devices and Circuit Design
- Antenna Design and Analysis
- Photonic and Optical Devices
- Silicon Carbide Semiconductor Technologies
- Antenna Design and Optimization
- Advanced Antenna and Metasurface Technologies
- Electrostatic Discharge in Electronics
- Microwave and Dielectric Measurement Techniques
- GaN-based semiconductor devices and materials
- 3D IC and TSV technologies
- Analog and Mixed-Signal Circuit Design
- Lung Cancer Research Studies
- Full-Duplex Wireless Communications
- Cancer Immunotherapy and Biomarkers
- Acoustic Wave Resonator Technologies
- Graphene research and applications
- Energy Harvesting in Wireless Networks
- Emergency and Acute Care Studies
First Affiliated Hospital of Fujian Medical University
2022-2025
Fujian Medical University
2022-2025
University of Electronic Science and Technology of China
2016-2025
University of Shanghai for Science and Technology
2023-2025
China Academy of Space Technology
2024
Sichuan University
2022-2024
West China Hospital of Sichuan University
2023-2024
Beijing Academy of Agricultural and Forestry Sciences
2024
China Automotive Technology and Research Center
2022-2024
Hebei University of Architecture
2024
A low power 60-GHz on-off-keying (OOK) receiver has been implemented in a commercial 90 nm RF CMOS process. By employing novel on-chip antenna together with architecture optimization, the achieves sensitivity of -47 dBm at bit-error rate (BER) less than 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-3</sup> . Using transmitter transmit 1.5 dBm, transmission distance 5 cm can be achieved 1.2 Gbps data rate. In this design, minimizes...
This paper presents a substrate integrated waveguide (SIW) multibeam slot array operating at <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\sim 30$ </tex-math></inline-formula> GHz for future 5G mobile terminal applications. The forming network is realized with Butler matrix that composed of hybrid couplers, crossovers, and phase shifters (135° 0°). crossovers are formed two cascaded couplers. In the...
A transformer-based high-order resonator is proposed to improve the locking range (LR) of millimeter-wave injection-locked frequency dividers (ILFDs). The LR limitations on ILFDs are discussed, and operating principles analyzed based their flattened phase response. inductive gain peaking technique tail current source requirement further for low power considerations. Two chips fabricated in a 65-nm CMOS process implement techniques: first one measures an 62.9% from 27.9 53.5 GHz while...
This paper presents a broadband variable gain amplifier (VGA) with low phase variation in 65 nm CMOS technology. The mechanism of VGA is analyzed. According to the analysis, feedforward paths formed by parasitic capacitive and inductive couplings are one main factors that result VGA. In order achieve variation, capacitor elimination technique proposed remove path gate-drain capacitor. Besides, an isolation enhancement layout minimize coupling capacitors stage. As results, measured 0.2° ~ 2°...
Immune checkpoint inhibitors (ICIs) provide modest but unsatisfactory benefits for extensive-stage small cell lung cancer (ES-SCLC). Developing strategies treating ES-SCLC is critical.
A 60-GHz 4-bit vector-summing phase shifter has been implemented in a 90-nm CMOS process. Based on tunable current-splitting technique with π-type low-pass filter (LPF) and T-type high-pass (HPF), quadrature adjustable amplitude generator is developed to improve the insertion loss adjust signals' amplitudes. Variable gain amplifiers (VGAs) that are widely used traditional shifters replaced by reduce power consumption. In addition, balun-based current-reuse applied further save dc power. The...
In this communication, we propose a generalized scattering parameters (S-parameters) calculation method for multi-port antennas and amplitude-phase controlled arrays based on multi-mode analysis approach. First, detail the process calculating passive S-parameters antenna element, using single-ended orthogonal matrix. This concept is then extended to arrays. Specifically, develop active that accommodates with varying amplitudes, phases, excitation modes. To validate our proposed methods,...
In this paper, a 3.2-3.6 GHz two-stage Doherty power amplifier (PA) module is proposed for fifth-generation (5G) massive multiple-input multiple-output (MIMO) base stations. A detailed design method and procedure compact low-loss combiner suitable the PA are introduced. Based on combiner, implemented using gallium nitride (GaN) transistors surface-mounted devices (SMDs) with packaged size of 8 × mm2. The achieves 3 dB small-signal bandwidth 3.1-3.9 peak gain 31.7 dB. From 3.2 to 3.6 GHz,...
Despite the gradual application of third-generation long read sequencing (LRS) or reference embryo establishment to preimplantation genetic testing for structural rearrangement (PGT-SR) without familial involvement, there are still limitations their extensive clinical yet. This study developed a novel virtual NGS-based method (ViLR) and preliminarily evaluated its feasibility breakpoint characterization direct SNP haplotyping de novo chromosomal rearrangements (CSR). A total 10 families with...
Abstract Aims Effective therapeutic drugs for calcific aortic valve disease (CAVD) are lacking, although its incidence has been increasing over the past decade, and is predicted to continue rising in future. This study aimed explore role potential mechanisms of liver X receptor α (LXRα) CAVD, which offers a promising approach treating CAVD. Methods results Osteogenic stimulation was performed following substantial downregulation LXRα observed human valves valvular interstitial cells. Further...
Abstract In the present work, high uniform 6-inch single-crystalline AlN template is successfully achieved by temperature annealing technique, which opens up path towards industrial application in power device. Moreover, outstanding crystalline-quality confirmed Rutherford backscattering spectrometry (RBS). accompanied with results from X-ray diffraction, RBS along both [0001] and reveal that in-plane lattice effectively reordered annealing. addition, constant Φ epi angle between at...
A growing number of on-chip inductors have been applied in the millimeter-wave IC design. The coupling effects between them a negative impact on performance circuit and each inductor. In this paper, new equivalent-circuit model parameter extraction method for multiple region are proposed. impacts every onchip inductor comprehensive considered proposed method. characteristics on-chip-coupled analyzed, modeled, measured. test structures were fabricated by 0.18-μm 90-nm CMOS processes....
A compact two-dimensional (2-D) scanning multibeam array operating at 28 GHz in a substrate integrated waveguide technology is proposed, designed, simulated, and fabricated this letter. To achieve better compactness, three-way couplers, instead of traditional Butler matrices, are applied here to form 2-D beam-forming network. By doing so, the occupied area can be significantly reduced. After joining radiation portion, allows for 3 × beam steering two orthogonal planes measured test whether...
A new equivalent-circuit model and parameter-extraction method for six-port M:N on-chip transformers baluns are presented in this paper. All of the elements proposed extracted directly by S-parameters based on full-wave electromagnetic (EM) simulations. Series branches used to capture characteristics primary secondary windings. The shunt impedance networks terminals represent substrate loss. magnetic coupling effects windings denoted six mutual inductances. electrical represented...
This paper deals with the fabrication of an inductorless wideband low-noise amplifier (LNA). The LNA includes two branches in parallel: a common-source (CS) path and common-gate (CG) path. CS is responsible for providing enough power gain, while CG used to achieve input impedance matching. To eliminate noise contribution path, cancellation technique applied. Therefore, overall figure (NF) improved. phase mismatch between paths also quantitatively analyzed investigate its effect on gain NF....
An injection-current-boosting (ICB) locking-range enhancement technique is presented to increase the locking range (LR) of millimeter-wave (mm-wave) injection-locked frequency triplers (ILFTs). With a transformer-based fourthorder injection-coupling network, parallel capacitance from injection devices resonated out over wide and current boosted greatly. Analytical models ICB-ILFT are introduced, based on which current-boosting phenomenon analyzed. Meanwhile, design concepts ultra-wideband...
This brief presents a wideband millimeter-wave (mm-Wave) low noise amplifier (LNA) with triple-coupled technique for multiband wireless applications. To enlarge the gain and reduce supply voltage, modified cascode topology exploiting transformer is developed. Thanks to transformer, transconductance of common-gate (CG) transistor also effectively boosted, hence further increased. Furthermore, high-order networks, which are realized by combinations π- T/L-type structures or transformers,...
A Ka-band 5-bit CMOS digital step attenuator (DSA) with low phase variations for 5G applications is presented. The cell optimized to alleviate the of conventional switched attenuators. tail capacitor that connected in series shunt resistor used construct a correction network hyperbolic function characteristics. DSA was implemented using 65 nm process. It has maximum attenuation range 31 dB 1.0 steps. With help capacitor, exhibits root-mean-square (rms) amplitude error less than 0.27 and rms...
This article presents a 60-GHz variable gain phase shifter (VGPS) with orthogonal and control technique linear in 65-nm CMOS. Using the technique, proposed VGPS has ability of tuning without extra block, significantly reducing size conventional phased arrays. The is to greatly improve accuracy robustness against temperature variation. As results, achieves 6-bit resolution across -25 °C 110 continuous range 14.8 dB. measured 3-dB bandwidth 52-64 GHz. -22.4 -dB, root-mean-square (rms) errors...