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Design, implementation and measurement of 26.6 GHz patch antenna using MEMS technology

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7 Author(s)
Abdel-Aziz, M. ; Dept. of Electron. & Comput. Eng., Ain Shams Univ., Cairo, Egypt ; Ghali, H. ; Ragaie, H. ; Haddara, H.
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The paper presents a 26.6 GHz patch antenna using MEMS technology. In this technology, the patch is suspended over a thin dielectric layer (membrane), which is deposited on a high index silicon substrate. In addition, the silicon substrate is fully etched under the patch, creating an air cavity region of very low dielectric constant (/spl epsiv//sub r//spl cong/1). The antenna is directly fed using a microstrip line, and a CPW-microstrip transition is used for probe measurements of the antenna return loss. The design is performed using the 3D electromagnetic simulator HFSS/sup /spl reg//. The measured antenna return loss is -17 dB at 26.6 GHz, and the bandwidth is 4.5%. The antenna has a radiation efficiency of 61.7% and directivity of 7.9 dB. The measured antenna cross-polarization level is less than -20 dB in both the E- and H-planes.

Published in:

Antennas and Propagation Society International Symposium, 2003. IEEE  (Volume:1 )

Date of Conference:

22-27 June 2003

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