A5101610081- Microwave and Dielectric Measurement Techniques
- Microwave Engineering and Waveguides
- Acoustic Wave Resonator Technologies
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Radio Frequency Integrated Circuit Design
- Microwave Dielectric Ceramics Synthesis
- Advanced Power Amplifier Design
- Ferroelectric and Piezoelectric Materials
- Wireless Power Transfer Systems
- Advanced ceramic materials synthesis
Hangzhou Dianzi University
2023-2024
In this article, a highly sensitive microwave microfluidic sensor for measuring the complex dielectric constant of liquid samples is proposed. The proposed based on triple complementary split ring resonator loaded with interdigital electrodes (TCSRR-IDEs). adopts an annular structure composed (IDEs) in middle ring, so as to further improve field confinement and obtain highest electric strength. outer optimized enhance performance sensor. A specimen container made...
This article proposes a quarter-mode substrate integrated waveguide (QMSIW) microwave resonance sensor loaded with complementary curved ring resonator (CCRR) structure for solid material measurement. Compared to the (SIW), QMSIW reduces volume by 25%. Etching multiple split-ring structures in series center area of can effectively construct high electric field environments, so it is designed as sensing achieve excellent performance. When under test (MUT) onto sensor, slightly perturbs field,...
Characterization of the dielectric constant solid materials has many applications. Among them, improving sensitivity and reducing error sensors is key to design. A design a highly sensitive substrate-integrated waveguide (SIW) microwave sensor proposed in this letter. An electric-LC (ELC) resonator etched on surface SIW sense changes characteristic. Furthermore, improve sensitivity, both sides ELC are designed with an interdigital electrodes (IDEs) structure achieve high electric field...
Summary In this paper, a dual‐band forward/inverse Doherty power amplifier (F/I‐DPA) based on hybrid load modulation network is proposed. The replaces the λ/4 transmission line in conventional (DPA) with coupler‐based (LMN) that incorporates post matching (PMN) for at isolated ports. LMN can realize both DPA and inverse methods operating band. order to verify theory, prototype 6 dB output back‐off (OBO) 3.3–3.6 GHz 4.8–5.0 was designed. measured results indicate of F/I‐DPA 42–42.8 dBm...
The influence of Nd3+ A site charge unbalanced substitution on the microwave properties and crystal structure (Pb0.48Ca0.52)(Fe0.5Nb0.5 )O3 ceramics has been investigated. For content x ≤ 2 mol-%, specimens can be produced with a single phase perovskite structure. Other > mol-% possessed PbO–Nb2O5 pyrochlore phase, linearly increasing x. Permittivity first increased then gradually decreased as to 20 mol-%. unloaded quality factor Qf reached maximum 5210 GHz when 5 At higher content, relative...