Fujitsu Ten Limited

Nippon Pillar Packing Co., Ltd.

Hiroaki Yoshitake

Akira Nakatsu

Takeshi Okunaga

Eisuke Hayakawa

Provided is a distributor capable of reducing insertion loss while suppressing a ratio in power distribution among output lines from being changed. The distributoris a distributor that is connected with an input line Lin and output lines Loto Lorespectively formed on a dielectric substrateas microstrip lines, and distributes to the output lines Loto Lohigh frequency power fed from a feeding point to a branching point through the input line Lin. In addition, the distributoris configured to include a stub areathat is formed in the input line Lin, is separated from the branching point, and has a rectangular shape wider than line widths of a first area La and a second area Lb of the input line Lin. The stub areais arranged in a position where the distance dbetween an edge on the feeding point side and lateral edgeson an input side of the output lines Loand Losubstantially perpendicular to the input line Lin is substantially equal to (&#x3bb;g/4)&#xd7;(2n+1) where &#x3bb;g is a guide wavelength and n is an integer.

Distributor and planar antenna

In an antenna, an antenna element interval is reduced without depending on an interval between converters, to widen the range of a phase folding angle to widen a detection angle range. The antenna includes a first antenna element including a feeder line extending from a first converter and a plurality of radiating elements. A second antenna element includes a feeder line extending from a second converter aligned together with the first converter and a plurality of radiating elements. The first and second antenna elements respectively include, at partial line portions of the feeder lines which extend from the converters to closest radiating elements, bend portions which are bent in directions which the bend portions come close to each other. The partial line portions of the first and second antenna elements are disposed so as to be linearly symmetrical about a virtual line.

Growing community of inventors

Hyogo, Japan

Hiroaki Yoshitake