60 GHz Band Small Aperture Conical Beam Radial Line Slot Antennas

Akira AKIYAMA  Jiro HIROKAWA  Makoto ANDO  Eriko TAKEDA  Yukikazu ARAI  

IEICE TRANSACTIONS on Electronics   Vol.E82-C   No.7   pp.1229-1235
Publication Date: 1999/07/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: Phased Arrays and Antennas
radial line slot antenna,  planar antenna,  conical beam,  millimeter wave,  

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60 GHz band conical beam radial line slot antennas (RLSA's) are designed and fabricated. Antennas are made of PTFE substrate with copper for high accuracy and mass producibility in millimeter wave frequency. The radiation pattern such as directivity and beam direction can be controlled by changing the excitation of slots. The measured radiation pattern is in reasonable agreement with the predicted one in main beam direction. The measured gain is about 2.5 dB smaller than the predicted gain.