狭壁の接着を省いた逆相給電一層構造導波管スロットアンテナの動作確認

概要

論文の詳細を見る
Demands for high-gain and high-efficiency antennas are increasing for millimeter-wave band applications. A slotted waveguide array is an attractive candidate for uses in millimeter-wave band because of its negligible transmission loss even for such high frequency. We have developed high-efficiency single-layer slotted waveguide arrays with co-phase feed circuit as is shown in Fig. 1(a) One difficulty in mass production is realization of perfect electrical contact between the narrow walls of the radiating waveguides and the slot plate. Alternating phase feed system is shown in Fig. 1(b) where the phase of the waves in adjacent waveguides has 180-dogree phase difference. The surface currents on both sides of a narrow wall flow in opposite directions and the total current across the contact vanishes. Therefore, close electric contact is not necessary. In this paper, basic operation of the alternating-phase fed array are demonstrated by measuring gain in 22GHz band.
社団法人電子情報通信学会の論文
1997-08-13