JPS59166509U

JPS59166509U - Beam shaping horn

Info

Publication number: JPS59166509U
Application number: JP6241083U
Authority: JP
Inventors: 玉川　「すすむ」
Original assignee: 日本電気株式会社
Priority date: 1983-04-25
Filing date: 1983-04-25
Publication date: 1984-11-08

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図Ａは従来におけるビーム整形ホーンの概略図、第
１図Ｂは第１図Ａの開口部で得ることを必要とするＴＥ
□□モードとＴＭ１１モードの電界分布を示す図、第２
図は第１図と同一の効果を得るための溝付ビーム整形ホ
ーンの概略図、第３図はこの考案によるビーム整形ホー
ンの第１の実施例を示す概略図、第４図はこの考案の第
２の実施例を示す概略図である。１１・・・・・・テーパ角が変化する部分、１２・・・
・・・開口部、２１・・・・・・溝、３１・・・・・・
テーパ角度変化部、３２・・・・・・開口部、３３・・
・・・・溝、３４・・・・・・溝の入口部分に設けられ
た共振棒列、θ・・・・・・テーパ角度変化、１・・・
・・・溝の深さ、ｆ□ｅ　’２・・・・・・入力信号の
周波数。FIG. 1A is a schematic diagram of a conventional beam shaping horn, and FIG. 1B is a TE required to be obtained with the aperture shown in FIG. 1A.
Diagram showing electric field distribution of □□ mode and TM11 mode, 2nd
The figure is a schematic diagram of a grooved beam shaping horn to obtain the same effect as in Figure 1, Figure 3 is a schematic diagram showing the first embodiment of the beam shaping horn according to this invention, and Figure 4 is a schematic diagram of a beam shaping horn according to this invention. It is a schematic diagram showing a second example. 11... Part where the taper angle changes, 12...
...opening, 21...groove, 31...
Taper angle changing part, 32...Opening part, 33...
...Groove, 34... Resonant bar row provided at the entrance of the groove, θ... Taper angle change, 1...
...Groove depth, f□e'2...Input signal frequency.

Claims

[Scope of utility model registration request]

A beam that has a groove around a part of a conical electromagnetic horn, converts a part of the TE1□ mode wave, which is the main propagation wave, into a TM□ mode wave, and obtains radiation directivity characteristics that are rotationally symmetrical around the radiation axis. In the shaped horn, a resonant bar row that resonates in a frequency band is provided at the entrance of the groove corresponding to the inner wall surface of the horn,
A beam shaping horn characterized by comprising a frequency-selective groove-type mode converter that cannot function as a TM1□ mode converter in the frequency band in which this resonant bar row resonates.