AVIC Xi'an Aircraft Industry Group applies for patents related to honeycomb radar-absorbing structures. The present invention's honeycomb structure enhances wave absorption capability and optimizes the design method.

April 2 News, the State Intellectual Property Office information shows that China Aviation Xi’an Aircraft Industry Group Co., Ltd. has applied for a patent titled “A Honeycomb Structure for Absorbing Electromagnetic Waves and Its Design Simulation Method.” The application publication number is CN121769522A, the application number is CN202511804909.7, the publication date is March 31, 2026, the filing date is December 3, 2025. Inventors are Guo Yiting, Hao Jingyi, Yang Mingsheng, Zhang Mengyu, Yang Yingjie. The patent agency is China Aviation Patent Center, patent agent Zhang Xin. Classification numbers are H01Q17/00, H05K9/00, G06F30/23, G06F30/27, G06N3/006.

The patent abstract states that the invention discloses a honeycomb structure for absorbing electromagnetic waves and its design simulation method. The honeycomb structure includes: a metal plate, a multilayer honeycomb layer structure and a skin set on the metal plate; the multilayer honeycomb layer structure includes at least three honeycomb layers and two spacers, specifically comprising: a first honeycomb layer on the upper surface of the metal plate, a first spacer on the upper surface of the first honeycomb layer, a second honeycomb layer on the upper surface of the first spacer, a second spacer on the upper surface of the second honeycomb layer, a third honeycomb layer on the upper surface of the second spacer, and a skin on the upper surface of the third honeycomb layer; the first, second, and third honeycomb layers are each composed of multiple honeycomb units with wave-absorbing coatings arranged in an array, with different heights, internal opening angles of honeycomb units, and pore sizes among the layers. The invention addresses issues such as limited wave-absorbing ability of existing honeycomb structures and the reliance on experimental trial-and-error in structural design methods, which result in high costs and low efficiency.

China Aviation Xi’an Aircraft Industry Group Co., Ltd. was established on June 18, 1997, and listed on the Shenzhen Stock Exchange on June 26, 1997. Its registered and office address is in Xi’an, Shaanxi Province. It is a leading enterprise in the research, development, and manufacturing of medium and large civil aircraft in China, with core businesses including military and civilian aircraft parts, possessing a full industrial chain with differentiated advantages.

Mainly engaged in the research, development, production, sales, maintenance, and service of military and civilian aircraft components such as large and medium military aircraft, landing gear, and wheel brake systems. It also involves the production and sales of products related to transportation equipment industry, building materials industry, and other fields. The company’s industry classification is Guofang Jun Gong - Aerospace Equipment II - Aerospace Equipment III, belonging to the Aviation Industry Corporation of China, AVIC system, and Airbus concept sectors.

In 2025, China Aviation Xi’an’s operating revenue reached 41.01B yuan, ranking third among 21 companies in the industry, only behind AVIC Power’s 46.33B yuan and AVIC Shenyang’s 44.66B yuan, higher than the industry average of 11.47B yuan and the median of 3.7B yuan. In main business, aerospace product revenue was 40.55B yuan, accounting for 98.86%, and other business revenue was 466 million yuan, accounting for 1.14%. Net profit in 2025 was 1.15B yuan, ranking third in the industry, lower than AVIC Shenyang’s 3.54B yuan and AVIC Aircraft’s 1.34B yuan, but higher than the industry average of 532 million yuan and median of 252 million yuan.

Recent patent status of China Aviation Xi’an Aircraft Industry Group Co., Ltd.:

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