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IEICE TRANSACTIONS on Electronics

NRD Guide Integrated Circuit-Compatible Folded Planar Antenna Fed by High Permittivity LSE-NRD Guide Radiator at 60 GHz

Futoshi KUROKI, Motofumi YAMAGUCHI, Yoshihiko WAGATSUMA, Tsukasa YONEYAMA

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Summary :

A high permittivity LSE-NRD guide was applied to a planar antenna at 60 GHz. Emphasis was placed on compatibility between the high permittivity LSE-NRD guide and the conventionally used low permittivity LSM-NRD guide. Performance of the transition between two such types of NRD guides was optimized by using an electromagnetic simulator and the validity was experimentally demonstrated. A simple radiator, consisting of a tapered high permittivity LSE-NRD guide was fabricated and evaluated as to radiation characteristics. Since the radiator has a broad radiation pattern, it was employed in a primary radiator of a two-dimensional parabolic reflector to develop a new type of folded planar antenna at 60 GHz. This planar antenna has a double-layered structure. In the upper layer, a metalized dielectric substrate with a slotted array is excited by a rectangular-shaped oversized waveguide, and in the lower layer, an offset parabolic reflector is fed by the radiator. Measurement showed the half-power beam width of the fabricated antenna to be 2.5 degrees in the E and H planes, respectively, and the gain to be 35.3 dBi, thus indicating that a good pencil beam antenna was successfully developed in this manner.

Publication
IEICE TRANSACTIONS on Electronics Vol.E87-C No.9 pp.1412-1417
Publication Date
2004/09/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Wave Technologies for Wireless and Optical Communications)
Category
Antennas, Circuits and Receivers

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