{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T13:23:57Z","timestamp":1787664237072,"version":"build-2736575974"},"reference-count":36,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T00:00:00Z","timestamp":1787616000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomimetics"],"abstract":"<jats:p>Grounded in structural biomimetics, this study extracts the multi-segmented tapered geometry from the 10-segmented lamellate antenna of Allomyrina dichotoma and maps it to microwave antenna design. Through biological characterization and parametric modeling, key geometric features\u2014multi-segmented configuration, irregular contour, and bilateral symmetry\u2014were extracted. Along the 2D pathway, a 10 \u00d7 10 \u00d7 1 mm3 PCB microstrip antenna was designed and fabricated, achieving 111% fractional bandwidth from 4.86 to 17.05 GHz with a peak gain of 2.15 dBi and a radiation efficiency of 67\u201372% across the operating band, plus two additional bands at 24.76\u201328.58 GHz and 32.66\u201337.73 GHz. The multiple resonance valleys on S11 curves and frequency-dependent surface current evolution indicate that multi-mode resonant coupling, perimeter increment, and symmetric aperture efficiency together underpin the ultra-wideband performance. Along the 3D pathway, a dipole antenna replicated via metallic 3D printing attains an electrical length of 0.17\u03bb, with 66% bandwidth and 1.45 dBi gain, confirming the same geometric principle in a shape-preserving form. The 2D route favors planar integration and bandwidth, while the 3D route offers extreme miniaturization. This work provides experimental validation of cross-domain geometric mapping from biology to electromagnetics within structural biomimetics, and offers engineering evidence for the intrinsic versatility of this morphology across physical domains.<\/jats:p>","DOI":"10.3390\/biomimetics11090606","type":"journal-article","created":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T12:57:17Z","timestamp":1787662637000},"page":"606","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Design of a Compact Ultra-Wideband Bio-Inspired Antenna Based on the Antennal Structure of Allomyrina dichotoma"],"prefix":"10.3390","volume":"11","author":[{"given":"Xu","family":"Zheng","sequence":"first","affiliation":[{"name":"Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chaobo","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-0129-0640","authenticated-orcid":false,"given":"Chenxi","family":"Gao","sequence":"additional","affiliation":[{"name":"Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e13202","DOI":"10.1049\/ell2.13202","article-title":"A Ku-Band Wideband Low-Profile Patch Antenna with Slot-Loading and Parasitic Structures","volume":"60","author":"Yu","year":"2024","journal-title":"Electron. 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