https://scholars.lib.ntu.edu.tw/handle/123456789/636092
標題: | LTCC-based Dual-Polarized AiP Module by Multilayered Cross-Dipole Antennas for 5G Mobile Terminal Applications at 28 GHz Band | 作者: | HSI-TSENG CHOU Chou, Sheng Ju Deng, Joseph D.S. Yan, Zhi Da |
關鍵字: | Antenna measurements | Antenna-in-package | Antennas | Bandwidth | cross-dipole | Dielectric substrates | dual-polarization | low-temperature co-fired ceramics | Metals | multilayer substrates | Radio frequency | Substrates | 公開日期: | 1-一月-2023 | 來源出版物: | IEEE Transactions on Components, Packaging and Manufacturing Technology | 摘要: | An antenna-in-package (AiP) of 4 × 4 elements with dual-polarized radiations for high-power radiation at a 28 GHz band was designed and fabricated by low-temperature co-fired ceramic (LTCC) for 5G applications. The design starts with selecting cross-dipole elements to ensure good polarization purity. The l/4 separation from a ground plane is achieved by considering a proper combination of multilayered substrates’ thicknesses and their dielectric constant, where the feedings are probed by coaxial-type vias from the bottom. The dipole arms’ shapes are optimally tuned to achieve broadband reflection coefficients. This AiP has the advantage of dual-polarizations along +/-45 degrees to avoid harmful interferences from metal-supporting structures, reasonable inter port isolations, and low cross-polarization levels. The AiP has a compact profile of 28x28 mm2. The inter-port isolation between the polarization excitation ports is larger than 33dB from HFSS full-wave simulations. The elements’ bandwidth is larger than 6 GHz from the full-wave simulation and broader than 4 GHz from measurements over the antenna prototype. The array has a bandwidth larger than 6 GHz from measurement with a maximum gain of 16.6dBi and a sidelobe level of 13.3 dB, validating the design concept. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/636092 | ISSN: | 21563950 | DOI: | 10.1109/TCPMT.2023.3307616 |
顯示於: | 電機工程學系 |
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