A5102007595- Microwave Engineering and Waveguides
- Radio Frequency Integrated Circuit Design
- Antenna Design and Analysis
- Millimeter-Wave Propagation and Modeling
- Advanced Power Amplifier Design
- Advanced Antenna and Metasurface Technologies
- Photonic and Optical Devices
- Electromagnetic Compatibility and Noise Suppression
- Advancements in PLL and VCO Technologies
- Full-Duplex Wireless Communications
- Superconducting and THz Device Technology
- Semiconductor materials and devices
- Terahertz technology and applications
- Gyrotron and Vacuum Electronics Research
- Semiconductor Quantum Structures and Devices
- Antenna Design and Optimization
- Acoustic Wave Resonator Technologies
- Advanced Photonic Communication Systems
- GaN-based semiconductor devices and materials
- Advancements in Semiconductor Devices and Circuit Design
- Advanced MIMO Systems Optimization
- 3D IC and TSV technologies
- Microwave and Dielectric Measurement Techniques
- Radar Systems and Signal Processing
- Energy Harvesting in Wireless Networks
Southeast University
2016-2025
State Key Laboratory of Millimeter Waves
2016-2025
Shaoxing People's Hospital
2024-2025
Purple Mountain Laboratories
2019-2024
Southeast University
2007-2024
Zhejiang Chinese Medical University
2024
National Synchrotron Radiation Research Center
2024
University of Electronic Science and Technology of China
2023
Henan University of Science and Technology
2023
National Chin-Yi University of Technology
2020-2021
Abstract The fifth generation (5G) wireless communication networks are being deployed worldwide from 2020 and more capabilities in the process of standardized, such as mass connectivity, ultra-reliability, guaranteed low latency. However, 5G will not meet all requirements future 2030 beyond, sixth (6G) expected to provide global coverage, enhanced spectral/energy/cost efficiency, better intelligence level security, etc. To these requirements, 6G rely on new enabling technologies, i.e., air...
With the demanding system requirements for fifth-generation (5G) wireless communications and severe spectrum shortage at conventional cellular frequencies, multibeam antenna systems operating in millimeter-wave frequency bands have attracted a lot of research interest been actively investigated. They represent key technology supporting high data transmission rate, an improved signal-to-interference-plus-noise ratio, increased spectral energy efficiency, versatile beam shaping, thereby...
Ever since the deployment of first-generation mobile telecommunications, wireless communication technology has evolved at a dramatically fast pace over past four decades. The upcoming fifth-generation (5G) holds great promise in providing an ultra-fast data rate, very low latency, and significantly improved spectral efficiency by exploiting millimeter-wave spectrum for first time infrastructures. In years beyond 2030, newly emerged data-hungry applications greatly expanded network will call...
This letter presents the design and experiment of half mode substrate integrated waveguide (HMSIW) bandpass filters. Three-pole five-pole HMSIW filters are simulated by using CST software fabricated with a single layer standard printed circuit board process. Different external-coupling approaches adopted in two The measured results good agreement results. Low insertion loss selectivity achieved
It is known that the substrate integrated waveguide (SIW) features high-pass characteristics of conventional waveguide, and a periodic structure (PS) generally presents bandstop characteristics. Therefore, super-wide-band bandpass characteristic should be realized by combining some sort PS into SIW. In this paper, three types compact SIW-PS wide-band filters are proposed investigated with simulation experiment. Performances super-wide bandpass, for instance, 8.5-16.5 GHz in case study, low...
A novel high-performance millimeter-wave planar diplexer is developed based on the complementary characters of substrate integrated waveguide (SIW) dual-mode filters with circular and elliptic cavities by making tradeoff between isolation, insertion loss, selectivity. The responses SIW are first investigated. It can be found that upper side response cavity lower very steep. diplexers high isolation performance then designed cavities. two fabricated a normal printed circuit board process....
A Ka-band compact single layer substrate integrated waveguide monopulse slot array antenna for the application of tracking system is designed, fabricated and measured. The feeding network as well comparator subarrays on same dielectric with size 140 mmtimes130 mm. bandwidth ( S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">11</sub> < -10 dB) 7.39% an operating frequency range 30.80 GHz-33.14 GHz. maximum gain at 31.5 GHz 18.74 dB null depth...
A 24-beams slot array antenna, which achieves 360-degrees coverage over azimuth direction, based on substrate integrated waveguide (SIW) technology is designed, fabricated and measured for supporting the concept of triangle cell, beam diversity multiple input output (MIMO) wireless communications. Constructed by six 4-beams single layer SIW antennas integrate 4times8 modified Butler matrix with a low side lobe level (SLL) amplitude distribution, SLLs are reduced as -14.5 dB all beams in...
This letter proposes a new type of microstrip quarter-wavelength stepped-impedance resonator (SIR) filter with controllable mixed electric and magnetic coupling. A conducting pin an open gap between two coupled SIRs are jointly used to create the coupling, coupling can be separately controlled by adjusting spacing position pin. Based on proposed structure, second-order third-order designed fabricated. Good agreement measured simulated data is obtained.
A low cost single-balanced mixer is designed using a newly 90/spl deg/ substrate integrated waveguide (SIW) 3-dB coupler, which takes the advantages of cost, profile, and high performance. An X-band SIW fabricated with standard printed circuit board process. Measured conversion loss 6.8dB wide-band response from 8.5 to 12GHz are presented.
A planar four-pole linear phase filter centered at 10GHz based on substrate integrated waveguide (SIW) is proposed. The composed of four side-by-side horizontally oriented SIW cavities, which are coupled in turn by evanescent sections with three direct coupling and one cross between the first fourth cavities. cavities fed microstrips through slots. curve-fitting technique adopted to improve efficiency design process. measured results presented compared simulated a high-frequency structure...
An approach for the bandwidth enhancement of a polarization rotating frequency selective surface (FSS) based on substrate integrated waveguide (SIW) technology is proposed in this communication. Compared with previously reported FSS, passband FSS enhanced from 4.6% to 7.2% by introducing triple-mode SIW cavity resonator as periodic element. Meanwhile, better response selectivity filtering performance achieved. The made up array novel resonators two orthogonal slots front and back surfaces...
In this letter, a low-cost continuously tunable substrate integrated waveguide (SIW) resonator and low phase noise SIW voltage-controlled oscillator (VCO) are presented. A simple new structure for coupling varactor to the cavity is proposed, which realizes circuit layout tuning resonator. Equivalent model given coupled Relation between coefficient <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex...
In this letter, two <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$K$</tex> </formula> -band cross-coupled substrate integrated waveguide (SIW) filters with improved stopband performance are proposed. To implement the negative coupling, Notation="TeX">${\rm TE}_{201}$</tex> -mode response is used in first cavity, which also to cross-coupling TE}_{101}$</tex></formula> mode for generating additional...
A novel planar triple-mode resonator is proposed and implemented by placing an additional metallic via at the center of a circular dual-mode substrate integrated waveguide (SIW) cavity resonator. The resonant frequency dominant mode in SIW increases remarkably become close to frequencies TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">110</sub> -similar mode. Three asymmetric bandpass filters utilizing this are designed fabricated. measured...
In this paper, a novel planar bandpass filter is proposed, designed, and implemented with hybrid structure of substrate integrated waveguide (SIW) coplanar (CPW), which has the advantages good passband stopband performance inherited from SIW miniaturized size accompanying CPW. Additional design flexibility introduced by for efficiently controlling mixed electric magnetic coupling, then filters controllable transmission zeros quasi-elliptic response can be achieved. Several prototypes single...
Investigations on planar ultrawideband (UWB) antenna with multiple band-notched characteristics based half mode substrate integrated waveguide technology are presented. The proposed consists of a UWB monopole and cavity which can generate stopbands by proper arrangement. Planar antennas dual, triple quadruple notched bands designed implemented. frequencies their bandwidths be adjusted according to specification altering the feed line independently. These fabricated two-layer printed circuit...
In this paper, ultra-wideband (UWB) Marchand baluns using substrate integrated coaxial line (SICL) technology are first proposed. SICL is a shielded planar line, which very suitable for wideband and high-speed applications due to its broad unimodal operation band, low insertion loss, small dispersion, easy integration with other circuits. order achieve wider bandwidth better VSWR performance of the balun, pair quarter-wave impedance transformers inserted into balanced line. The...
In this paper, on-chip higher-order-mode dielectric-resonator antennas (DRAs), fed by a half-mode-backed cavity structure using standard CMOS technology, are presented. With the dominant mode (half-TEz100), half-mode cavity-feeding provided high antenna radiation efficiency. The dielectric resonators (DRs) were designed to operate at higher-order modes (TEx¿13, TEx¿15) enhance gain. At around 135 GHz, proposed demonstrated measured gains of 6.2 dBi and 7.5 for TEx¿13 TEx¿15 modes,...
An integrated low-profile dual circularly polarized (dual CP) array antenna operating in the Q-band is proposed this paper, which realized by sequentially rotating subarrays comprised linearly (LP) substrate waveguide (SIW)-fed patches. The design methodology and working mechanism of LP SIW-fed patches presented first, implemented with a two-layer printed circuit board structure where SIW feeding network located bottom are on top substrate. Four then arranged according to requirements...
A novel balanced filter realized in the form of substrate integrated waveguide (SIW) is proposed and studied this paper. Based on inherently horizontal vertical symmetry SIW, presents high-performance property with advantages no identical pair requirement, being free from limitation symmetrical topology, easy flexible design, high common-mode (CM) suppression, robust CM suppression when comparing conventional counterparts. Several prototypes are designed, fabricated, measured to verify...
A time-division duplex (TDD) transmit/receive (T/R) millimeter-wave (mm-wave) front-end in 0.13- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> SiGe BiCMOS for fifth generation (5G) is presented. The composed of a power amplifier (PA), low noise (LNA), and single-pole double-throw (SPDT) switch. At mm-wave bands, the traditional SPDT switch limits output transmit...
A reflective surface with polarization rotation property is proposed in this letter. The primary function of the to reflect linearly polarized incident wave 90° rotation. fractional bandwidth reaches up 9.5%, copolarization reflection coefficient better than -10 dB at normal incidence. Stable frequency responses passband have been obtained oblique incidence for TE polarization. periodic element consists a dual-mode substrate integrated waveguide (SIW) cavity resonator horizontal and vertical...
A novel wide stopband bandpass filter implemented with spur stepped impedance resonator (SSIR) and substrate integrated coaxial line (SICL) technology is proposed in this letter. SSIR possesses capabilities of both suppressing staggering spurs without complicated fine-tuning, SICL very suitable for applications. prototype compact size fabricated, the measured results exhibit extended up to 8.76 f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML"...
A linear CMOS <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$LC$ </tex-math></inline-formula> voltage-controlled oscillator (VCO) utilizing triple-coupled inductors and a 40-GHz integer-N phase-locked loop (PLL) are fabricated in standard 90-nm process. The VCO utilizes to couple varactor pairs, which compensate each other linearize the gain. tank is theoretically analyzed using equivalent circuit models....