Matsushita Electric Works, Ltd.

Hajime Takeda

Katsuya Tsukamoto

Masayuki Matsuo

Hiroyuki Nishimura

Yasuhiro Fujii

Tsuyoshi Kadono

Yoshihiro Kitsuda

Kyoji Masamoto

Yasumasa Ogawa

Takashi Furuta

Sadaaki Kondo

Hiroshi Yokota

Hirofumi Ishizaki

Shoji Miyanari

Masakatsu Niwa

Akira Uesaka

Shuji Taniguchi

A antenna and tuner combination for receiving microwaves from a broadcasting satellite includes a stand plate to be placed on a supporting surface and a planar antenna module connected by a hinge assembly to the stand plate so that the antenna module is movable between a folded position upon the stand plate and an extended position extending from the stand plate. An adjustor is included to adjust the antenna module to a desired angular disposition with respect to a plane of the stand plate and holding it at the desired angular disposition for keeping it oriented to the broadcasting satellite. A tuner is detachably mounted on the stand plate with its input terminal connected to a corresponding output terminal of the antenna module.

Antenna and tuner combination

A plane antenna comprises a power-supply circuit, a radiator circuit and an earthing conductor which are stacked respectively with a dielectric layer interposed between them, in which the power-supply and radiator circuits are made independent of each other as electromagnetically coupled to each other and at least one of the dielectric layers is formed with a foamed resin, whereby insertion loss can be reduced to remarkably improve the antenna characteristics. Only with the interposition of the foamed resin dielectric layer or layers, an effective separation is achieved between at least the power-supply circuit and the earthing conductor or the power-supply circuit and the radiator circuit, for a large extent improvement in the assembling ability.

Planar antenna

Growing community of inventors

Osaka, Japan

Hajime Takeda