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Design of LTCC Wideband Patch Antenna for LMDS Band Applications

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3 Author(s)
Kuo-Sheng Chin ; Dept. of Electron. Eng., Chang Gung Univ., Tao-Yuan, Taiwan ; Ho-Ting Chang ; Jia-An Liu

This letter presents a wideband patch antenna on a low-temperature cofired ceramic substrate for Local Multipoint Distribution Service band applications. Conventional rectangular patch antennas have a narrow bandwidth. The proposed via-wall structure enhances the electric field coupling between the stacked patches to achieve wideband characteristics. We designed same-side and opposite-side feeding configurations and report on the fabrication of an experimental 28-GHz antenna used to validate the design concept. Measurements correlate well with the simulation results, achieving a 10-dB impedance bandwidth of 25.4% (23.4-30.2 GHz).

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:9 )