A5056014453- Microwave Engineering and Waveguides
- Advanced Algorithms and Applications
- Advanced Sensor and Control Systems
- Radio Frequency Integrated Circuit Design
- Photonic and Optical Devices
- Advanced Antenna and Metasurface Technologies
- Advanced Computational Techniques and Applications
- Microwave and Dielectric Measurement Techniques
- Millimeter-Wave Propagation and Modeling
Nanjing Institute of Technology
2019-2020
Xinjiang Uygur Autonomous Region Institute Inspection of Special Equipment
2008
A wideband and miniaturized forward-wave directional coupler using periodical loaded LC network is proposed in this brief. The consists of parallel plates vertical meander lines. designed with impedance matching, a large phase difference small variation between the even odd modes within wide frequency range. These propagation characteristics are calculated predicted by unit cell Bloch-Floquet theorem. Finally, prototype fabricated low-temperature co-fired ceramic (LTCC) technology. electric...
A low-cost 77/79-GHz ladder-type forward-wave directional coupler (FWDC) is proposed based on microstrip and substrate integrated waveguide (SIW) for frequency modulated continuous wave (FMCW) radar application in this article. The SIW structures are periodically loaded between two parallel lines. In the circuit topology of FWDC, impedance matching even/odd modes achieved. Meanwhile, an approximate constant phase difference (about 12°) even odd designed within 76-81 GHz. FWDC modeled by...
To achieve a miniaturized forward-wave directional coupler (FWDC) chip based on the integrated passive device (IPD) process, novel circuit topology is proposed in this paper. The characteristics of unit cell for even/odd modes are derived using Bloch-Floquet theory. can be designed with ultra-compact size and increased phase differences modes. coupling level reach 1.5 dB from 9.2 GHz to 13.2 GHz. fractional bandwidth 12% length about 0.1 \pmbλg. Due IPD work realized within size.