AEROSPACE SHANGHAI, Volume. 42, Issue 4, 59(2025)
Highly-reliable LTCC Miniaturized Circularly-polarized Antenna Array for Aerospace Applications
Figures & Tables(9)
Fig. 1. Geometry of the circularly-polarized element of the antenna array
Fig. 2. Simulation configuration of the circularly-polarized antenna array with sequentially-rotated 4×4-elements
Fig. 3. Photograph of the fabricated circularly-polarized antenna array
Fig. 4. Measured electrical performance results of the fabricated circularly-polarized antenna array
Fig. 5. Simulated electrical performance results of the circularly-polarized antenna array before and after irradiation
Fig. 6. Simulated reliability results of the antenna array structure under extreme environments with large temperature ranges
Table 1.
Parameter performance of domestic LTCC materials under extreme environments View tableView in ArticleTable 1.
Parameter performance of domestic LTCC materials under extreme environments 材料参数 测试条件 国产LTCC材料性能 参数变化 热导率/ (W·m-1·K-1) 大温域-65 ℃→175 ℃ 4.77(-65 ℃)→2.89(175 ℃) 弯曲强度/MPa 445(-65 ℃)→310(175 ℃) 热膨胀系数/ （10-6 ℃-1） 4.2(-65 ℃)→6.3 (175 ℃) 介电常数及 介电损耗 使用60Co辐照源，辐照总剂量 1×106 rad（Si）、 1×107 rad（Si) 7.88(试验前)→7.79 (试验后)，
0.002 4(试验前)→0.002 5(试验后)
温度循环-65 ℃→175 ℃，
≥30 min，300次
7.88(试验前)→7.95 (试验后)，
0.002 4(试验前)→0.002 1(试验后)
Table 2.
Comparison of parameter performance between domestic LTCC materials and foreign LTCC materials View tableView in ArticleTable 2.
Comparison of parameter performance between domestic LTCC materials and foreign LTCC materials 材料参数 国产LTCC材料 参数性能 国外LTCC材料 参数性能 热导率/ ( W·m-1·K-1) 2.8@20~200 ℃ 3.3 弯曲强度/MPa 350 230 热膨胀系数/ （10-6 ℃-1） 6.5@20~300 ℃ 5.8@25~300 ℃ 介电常数 8.0±0.3@1.9 GHz 7.8±0.2@3.0 GHz 7.9±0.3@15 GHz 7.5±0.2@10 GHz 介电损耗 ≤0.003@1.9 GHz 0.006@3.0 GHz ≤0.005@15 GHz
Table 3.
Maximum equivalent stress and maximum deformation of the antenna array in extreme environments with large temperature ranges View tableView in ArticleTable 3.
Maximum equivalent stress and maximum deformation of the antenna array in extreme environments with large temperature ranges 温度条件/℃ 等效应力/（ 总形变/mm X轴形变/mm Y轴形变/mm Z轴形变/mm -65 1.937 9 0.035 195 0.024 882 0.024 882 0.000 701 2 175 4.652 9 0.084 511 0.059 747 0.059 747 0.001 683 8
Tools
Get Citation
Copy Citation Text
Junya YANG, Liangping WANG, Yamei LIN, Yanlin LI, Wei SHI, Jichao LIU. Highly-reliable LTCC Miniaturized Circularly-polarized Antenna Array for Aerospace Applications[J]. AEROSPACE SHANGHAI, 2025, 42(4): 59
Paper Information
Category: Microsystems Devices and Reliable Applications
Received: Jun. 14, 2025
Accepted: --
Published Online: Sep. 29, 2025
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20