TY - JOUR
T1 - Light-weight, high-gain antenna with broad temperature adaptability based on multifunctional 3D woven spacer Kevlar/polyimide composites
AU - Zhang, Kun
AU - Zheng, Liangang
AU - Pei, Rui
AU - Chen, Long
AU - Xu, Fujun
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/2
Y1 - 2022/2
N2 - Multifunctional composites endowed with signal transmission and excellent mechanical properties show promising applications in aviation and aerospace. In this study, in combination with copper yarn, Kevlar yarn and polyimide resin, a light-weight 3D woven spacer composite antenna (3DWSCA) was developed for effective wireless signal transmitting. Based on the advanced 3D structural design, the Kevlar/Polyimide composite substrate with high specific strength (11.2 MPa/g·cm−3), ultra-low density (0.34 g/cm3), superb dielectric properties and small temperature coefficient of resonant frequency (TCF: -12.6 ppm/°C) was constructed. Accordingly, the 3DWSCA realized a gain value of 4.95 dB near designed frequency (2.34 GHz) with a good impedance matching (S11 value < −25 dB). Moreover, the 3DWSCA demonstrated broad temperature adaptability, maintaining stable resonance frequency and radiation properties in the temperature range of −160–200 °C. With these excellent performances, 3DWSCAs can be integrated into the component structure of high-velocity aircrafts to operate in a wide range of temperature, without sacrificing their mechanical and signal transmission functions.
AB - Multifunctional composites endowed with signal transmission and excellent mechanical properties show promising applications in aviation and aerospace. In this study, in combination with copper yarn, Kevlar yarn and polyimide resin, a light-weight 3D woven spacer composite antenna (3DWSCA) was developed for effective wireless signal transmitting. Based on the advanced 3D structural design, the Kevlar/Polyimide composite substrate with high specific strength (11.2 MPa/g·cm−3), ultra-low density (0.34 g/cm3), superb dielectric properties and small temperature coefficient of resonant frequency (TCF: -12.6 ppm/°C) was constructed. Accordingly, the 3DWSCA realized a gain value of 4.95 dB near designed frequency (2.34 GHz) with a good impedance matching (S11 value < −25 dB). Moreover, the 3DWSCA demonstrated broad temperature adaptability, maintaining stable resonance frequency and radiation properties in the temperature range of −160–200 °C. With these excellent performances, 3DWSCAs can be integrated into the component structure of high-velocity aircrafts to operate in a wide range of temperature, without sacrificing their mechanical and signal transmission functions.
KW - Microstrip antenna
KW - Multifunctional composites
KW - Temperature adaptability
KW - Three-dimensional reinforcement
UR - http://www.scopus.com/inward/record.url?scp=85122948181&partnerID=8YFLogxK
U2 - 10.1016/j.coco.2022.101061
DO - 10.1016/j.coco.2022.101061
M3 - Article
AN - SCOPUS:85122948181
SN - 2452-2139
VL - 30
JO - Composites Communications
JF - Composites Communications
M1 - 101061
ER -