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Characteristics of 60 GHz band conical beam radial line slot antennas

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5 Author(s)
Akiyama, A. ; Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Japan ; Hirokawa, J. ; Ando, M. ; Takeda, E.
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Conical beam concentric array radial slot line antennas (RSLA) have been fabricated for the 60 GHz band. A PTFE substrate with copper foils is used. The coaxial feeder has been modified to improve the reflection. The measured reflection has revealed that the -15 dB bandwidth is about 500 MHz around the design frequency. The bandwidth of the gain has also improved because of the feeder modification.

Published in:

Antennas and Propagation Society International Symposium, 1999. IEEE  (Volume:3 )

Date of Conference:

11-16 July 1999