3-1 地上波ディジタルテレビ受信用"ラダーアンテナ"その3(第3部門 アンテナ)

抄録

Assuming that a ladder antenna has a structure of directly stacked number of full-wavelength quadrangle loops with a reflector, when the feed point is situated at the centre of the ladder type radiator. In this paper, we present useful designs from 2L to 6L ladder antennas for receiving UHF-DTTB (Digital Terrestrial Television Broadcasting), and that the dimensions are calculated according to the results made by the moment method.