LTCC Partially-Filled Post-Wall Rectangular-Waveguide Slot Array Antenna in the Millimeter-Wave Band
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概要
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In the millimeter-wave band, the series-fed array antenna is facing a problem of large transmission loss and narrow bandwidth by using a high-permittivity and large-loss-tangent material. In this paper, an air region is inserted in the half of the height in the LTCC waveguide of εr =6.6 and tanδ =0.013 to reduce the transmission loss. The reduction of the equivalent dielectric constant by the air insertion structure enhances both the gain and the bandwidth of the series-fed slot array. The transmission loss of the single-mode rectangular waveguide has been reduced to about 1/6 by using the partially-filled structure in the 60-GHz band. In a one-dimensional slot array, the total loss has also been reduced to about 1/7. And the 3dB-down gain bandwidth has also been increased from 1.3GHz to 2.3GHz.
著者
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HIROKAWA Jiro
Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
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Hirokawa Jiro
Department Of Electrical & Electronic Engineering Faculty Of Engineering Tokyo Institute Of Tech
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Hanatani Daisuke
Hirai Seimitsu Kogyo Corporation
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SHE Yuanfeng
Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
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She Yuanfeng
Department Of Electrical And Electronic Engineering Tokyo Institute Of Technology
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Ando Makoto
Department Of Applied Physics Faculty Of Engineering Tokyo University Of Agriculture And Technology
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FUJIMOTO Masahiro
Hirai Precision Ind. Co. Ltd.
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HANATANI Daisuke
Hirai Precision Ind. Co. Ltd.
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