JPS6447109U

JPS6447109U -

Info

Publication number: JPS6447109U
Application number: JP14239187U
Authority: JP
Priority date: 1987-09-18
Filing date: 1987-09-18
Publication date: 1989-03-23

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例によるアンテナ装
置を示す構成図、第２図は電波レンズにおける電
波の進行方向の変化を説明するための図、第３図
は従来のアンテナ装置を示す構成図である。１は構造用基体、２_１〜２ｎは素子アンテナ、
３_１〜３ｎは低雑音増幅器、４_１〜４ｎはアナロ
グデイジタル変換器、５はデイジタルビーム形成
回路、６_１〜６ｎは出力ポート、７は電波レンズ
である。なお、図中、同一符号は同一または相当
部分を示す。 Fig. 1 is a block diagram showing an antenna device according to an embodiment of the invention, Fig. 2 is a diagram for explaining changes in the direction of propagation of radio waves in a radio wave lens, and Fig. 3 is a block diagram showing a conventional antenna device. It is. 1 is a structural base, 2 ₁ to 2n are element antennas,
3 ₁ to 3n are low noise amplifiers, 4 ₁ to 4n are analog-to-digital converters, 5 is a digital beam forming circuit, 6 ₁ to 6n are output ports, and 7 is a radio wave lens. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A structural base having a plane, a plurality of element antennas arranged on the plane of the structural base, a low noise amplifier connected to each of the element antennas, and an output of the low noise amplifier directly or to an IF. An antenna having an analog-to-digital converter for converting the converted signal into a digital signal, and a digital forming circuit for forming a composite beam from the output of the analog-to-digital converter, wherein a plurality of elements are arranged on a plane of the structural base. An antenna device comprising a radio wave lens having a desired refractive index distribution on the side of the antenna in which radio waves arrive.