A5042270538- Electromagnetic Compatibility and Measurements
- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Indoor and Outdoor Localization Technologies
- Geophysical Methods and Applications
- Advanced Image and Video Retrieval Techniques
- Soil Moisture and Remote Sensing
- Microwave Imaging and Scattering Analysis
- Antenna Design and Optimization
- Advanced SAR Imaging Techniques
Beihang University
2018-2024
This letter presents a sub-6 GHz cost-effective wideband dual-polarized plane wave generator (PWG) design for the fifth-generation (5G) base station over-the-air test. The proposed nonuniform PWG is composed of 256 elements and has dimension 1.7 m × m. Several novel strategies are implemented to reduce cost complexity. To feeding network complexity mutual coupling among elements, tapered amplitude-only excitation method (i.e., with same relative phase excitations all elements) proposed....
The generalized three-dimensional (3-D) van Cittert– Zernike (VCZ) theorem highlights the opportunity for short-range passive 3-D imaging as a means of screening entire human body surface walking subject law enforcement applications. Building on millimeter-wave (PMMW) aperture synthesis instrumentation development at Beihang University, spatial resolution this technique is shown to be between five and ten millimeters operational frequency 30 GHz. This sufficient recognize majority threats...
This paper presents an efficient method to calculate the near field distribution of planar antenna array. brings a great benefit reducing computation complexity in optimization. The aperture formula is introduced optimize excitation amplitude and phase plane wave generator (PWG). Numerical examples, showing design results non-ideality factors effect PWG system practical engineering applications, are discussed.