Xiaoyu (Rayne) Zheng (Advisor)

Research Advised by Professor Xiaoyu (Rayne) Zheng

Zheng Group:  List of Projects | List of Researchers

Ultra-Light Antennas via Charge Programmed Deposition Additive Manufacturing

Zhen Wang
Ryan Hensleigh
Zhenpeng Xu
Junbo Wang
James JuYoung Park
Anastasios Papathanasopoulos
Yahya Rahmat-Samii
Rayne Zheng
2025

The demand for lightweight antennas in 5 G/6 G communication, wearables, and aerospace applications is rapidly growing. However, standard manufacturing techniques are limited in structural complexity and easy integration of multiple material classes. Here we introduce charge programmed multi-material additive manufacturing platform, offering unparalleled flexibility in antenna design and the capability for rapid printing of intricate antenna structures that are unprecedented or necessitate a series of fabrication routes. Demonstrating its potential, we present a transmitarray antenna...

Zheng Lab: Tuning in to the Possibilities of 3D-Printed Antenna Technology

January 9, 2025

A CPD-fabricated gradient phase transmitarray for generating highly directive radiation. The antenna features three layers of gradually tilted architected S-ring unit cells.

Zheng has been working on the CPD platform since 2019 when his group first came up with the concept. In 2020, his team published their first paper in Nature...

https://engineering.berkeley.edu/news/2025/01/tuning-in-to-the-possibilities-of-…

Wenjie (Jeff) Li

Graduate Student Researcher
Mechanical Engineering
Professor Rayne Zheng (Advisor)
Ph.D. 2030 (Anticipated)

Jiayan Zhang

Graduate Student Researcher
Materials Science & Engineering
Professor Rayne Zheng (Advisor)
Ph.D. 2029 (Anticipated)

BSAC's Best: Fall 2024 Awards Announced

September 19, 2024

BSAC is pleased to announce the outstanding paper and presentation award recipients from the Fall 2024 Research Review on September 18th. The Industrial Advisory Board was highly impressed by the quality of research, and the recipients’ work stood out in a competitive field.

We sincerely thank all the researchers who presented their innovative projects. These contributions are key to advancing research and fostering collaboration between academia and industry.

After careful evaluation, BSAC Industrial Members have voted, and we congratulate the Fall 2024 Best of BSAC honorees...

3D Printing of Architected Hydrophones

Victor Couedel
2024
Fall 2024 BSAC Research Review Presentation View Presentation View Slides Winner: Best Oral Presentation (Fall 2024)...

BPNX1015: Ultra-Light Antennas via Charge Programmed Deposition Additive Manufacturing

Ju Young Park
2024

Multi-material printing employing charge-programmed material is utilized for phase array antenna fabrication, showcasing an ultra-lightweight RF phase array. Significant weight reduction is achieved through selective dielectric material printing. Our approach enables complex electronic device fabrication in one step, utilizing a mosaic of surface charge regions to deposit functional materials with precision. We demonstrate the inherently complex manufacturing process via homogeneous diffusion and fluid dynamics control.

Project is currently...

BPNX1021: Realizing Three-Dimensional Alignment of Two-Dimensional Material for Isotropic Properties Enhancement via Embedded Direct Ink Writing (New Project)

Qiyi Chen
2024

The orientation of fibrous fillers, induced by shear forces during extrusion, has been demonstrated to significantly enhance mechanical properties, electrical/thermal conductivity, microwave attenuation etc., albeit primarily in a two-dimensional (2D) x-y plane. In this study, we present a novel approach for achieving fiber alignment in a three-dimensional (3D) context, with an emphasis on the Z-direction, by utilizing embedded 3D printing techniques. This process involves the extrusion and suspension of composite inks within a viscoelastic gel medium, during which the...

BPNX1018: Free Surface Investigation in Large-Area Projection Micro Stereolithography (New Project)

David Hahn
2024

This project seeks to additively manufacture micro-architected cellular solids in high resolution, large area in hundreds of millimeters, containing millions of unit cells which are defect-free.

Project is currently funded by: Federal

Project ended 08/31/2024

BPNX1033: Multi-Objective Inverse Design of Impact Resistant Metamaterials Under Varying Strain Rates (New Project)

Anish Satpati
Marco Maurizi
2024

This work pertains to the multi-objective inverse design of impact-resistant metamaterials under varying strain rates. Impact-resistant materials are desirable in a wide range of applications, such as sports, automobiles, military, and aircraft, to name a few. Existing literature deals with refining these structures by performing quasi-static finite element (FE) simulations and then verifying them experimentally, which is a time-consuming and expensive process. Moreover, beyond the low-velocity regime, quasi-static simulations are not representative of real-world dynamic...