1991 年 15 巻 28 号 p. 29-34
The perspective and future trend of the antenna technology for receiving the DBS is de-scribed in this paper. The paper treats the following items: ( l) The chronological table of 12GHz band satellite broadcasting. (2) The change of the improvement of the DBS receiving antenna efficiency. (3) The change of the size of the DBS receiving antennas. (4) The new antenna technology for HDTV, mobile, et al.