A5059809929- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Millimeter-Wave Propagation and Modeling
- Advanced MIMO Systems Optimization
- Conducting polymers and applications
- Thin-Film Transistor Technologies
- Antenna Design and Optimization
- Radio Wave Propagation Studies
- Radio Astronomy Observations and Technology
- Telecommunications and Broadcasting Technologies
- Advanced Sensor and Energy Harvesting Materials
- Structural Analysis and Optimization
Samsung (South Korea)
2022-2023
Yonsei University
2014-2017
This paper presents the novel design techniques for terahertz (THz) antenna-in-package (AiP) to overcome issues resulting from multilayer PCB-based antenna array integration, fabrication, and measurement. We propose a wideband dual-polarized stub-loaded proximity-coupled stacked patch vertical power divider as solutions. Circuit analysis is performed provide equivalent circuit model its validity. designed, simulated, measured 4×1 subarray, which ultimately builds THz 8×8 AiP next generation...
This paper presents a wideband dual-fed/dual-polarized sub-terahertz (THz) array antenna design and D-band measurement system setup. The designed is <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$4\times 1$</tex> linear operating from 136 to 148 GHz. fed by vertically constructed corporate feeding network, it fabricated through printed circuit board (PCB) using modified semi-additive process (mSAP). For impedance matching of the element,...
This letter proposes an architecture for antenna-in-package (AiP) operating at sub-terahertz (sub-THz) frequencies to improve the isolation between two ports in a dual-polarized stacked patch antenna. The design features orthogonal fan-out lines that extend from vertical via probe feeding, each covered by grounded shielding geometry. proposed structure improves of single element up 10 dB polarization. performance was verified through simulated and measured results using 4 × 1 subarray....
WINNER channel model applied novel path loss is proposed. This uses geometric optics and probability. It proposed for predicting an indoor radio propagation to achieve more computational simple over ray-tracing method better accuracy than a statistical model[1]. As result, accurate interference analysis characteristics wireless communication system are possible based on this modified model.
In this paper, compact and wideband microstrip tapered balun is proposed. Circular slot double dielectric layer adopted for miniaturization balance performance of the balun. addition, performances proposed are measured with simple strip dipole. Bandwidth 1 ~ 7 GHz length 0.05 λ at GHz. Balance estimated by radiation patterns dipole integrated
This paper introduces new impedance matching technique for via transition of multi-layer PCB based sub-THz antenna-in-package (AiP). In the proposed design, multiple resonating stubs are cascaded in vertical direction along to create multi-stage wideband network. The stub employs rectangular ring reduce length by increasing parasitic capacitance around ring. presented this is demonstrated through fabrication, and measurement subarray next generation's 6G AiP operating from 136 148 GHz. four...
This paper proposes a spiral antenna array for wideband compact which is composed of an Archimedean with double arms. It low profile, hexagonal can have beam scan angle 30 degrees without grating lobe from 1.5 GHz to 6 (4:1 bandwidth). When we design the array, space elements limited beam-steering. However, limitation solved by mutual coupling between each element. has better performance in comparison previous method. The beam-steering represented radiation patterns at certain frequencies.