Matsushita Electric Works, Ltd.

Other

Mikio Komatsu

Minoru Kanda

Toshio Abiko

Hidetsugu Nunoya

Yasuhiro Fujii

Kyoji Masamoto

Yasumasa Ogawa

Hirohumi Ishizaki

Masayuki Matsuo

Sadahiko Nishimura

Toshio Makimoto

Hiroshi Yokota

Kazuhisa Akiyama

Yasuo Yabu

Naoki Ao

Tuyoshi Hashimoto

Yoshitaka Kimura

A low-noise-block downconverter (LNB) for use with flat antennas receiving dual polarized electromagnetic waves includes a body case mounted to a rear side surface of the flat antenna, the body case having two wave guide input ports corresponding to wave guide apertures of the antenna and enclosing a selective device alternatively allowing either one of two outputs corresponding to two different type polarized electromagnetic waves received.

Low-noise downconverter for use with flat antenna receiving dual

A planar antenna has an active circuit block, the whole or part of which is internally mounted to a planar antenna body so that connecting terminal of the block will be connected to a feeding point on power supply plate of the antenna body. Dimensional minimization of the entire antenna can be thereby attained and noise figure of the active circuit can be simultaneously reduced.

Planar antenna with active circuit block

A converter for use with planar antennas has a probe projected into an input part of waveguide structure as extended along a plane including a circuit board in a body of the converter, an opening of which input part being disposed in parallel to the plane, whereby the converter input part is allowed to have a thickness limited within the thickness of the converter body to remarkably reduce the entire thickness for effectively realizing a minimization in the thickness of the converter.

Converter for planar antenna

A plane antenna assembly comprises a plurality of antenna bases and a signal composing means including amplifiers each connected to output part of each antenna base for composing respective outputs of the antenna bases amplified through the amplifiers, whereby a composite antenna output is obtained in correspondence to the number of the antenna bases and in an excellent S/N ratio.

Plane antenna assembly

A microwave plane antenna comprises a plurality of pairs of antenna elements connected at their one end to a power supply circuit and respectively including at the other terminating end an impedance-matched patch antenna means, whereby signal energy remaining at the terminating ends of the antenna elements is caused to be effectively utilized as radiation energy, and any power loss is restrained for a high antenna gain and improved aperture efficiency.

Planar microwave antenna having high antenna gain

Growing community of inventors

Kadoma, Japan

Mikio Komatsu