JPS6329784U

JPS6329784U -

Info

Publication number: JPS6329784U
Application number: JP12353186U
Authority: JP
Priority date: 1986-08-12
Filing date: 1986-08-12
Publication date: 1988-02-26

Description

[Brief explanation of the drawing]

第１図は本考案による方向探知機の一構成例を
示すブロツク図、第２図は本考案による一実施例
を示す指向性切換部および切換信号移相部の接続
図、第３図は指向性切換信号のタイムチヤート、
第４図は直交指向性アンテナの指向性切換順序を
示す図、第５図は従来の極性反転回路を用いた方
向探知機の例を示すブロツク図、第６図は第５図
の極性反転回路の一例を示す接続図である。１ａ，１ｂ……直交指向性アンテナ、２……無
指向性アンテナ、３……指向性切換部、４……切
換信号移相部、５……合成部、６……受信部およ
び指示部、８……切換信号発生部、Ｓ１……リレ
ー接点、Ｔ１，Ｔ２……入力トランス、Ｔ３……
出力トランス、Ｄ１，Ｄ２，……，Ｄ８……ダイ
オード。 Fig. 1 is a block diagram showing an example of the configuration of a direction finder according to the present invention, Fig. 2 is a connection diagram of a directivity switching section and a switching signal phase shift section showing an embodiment of the present invention, and Fig. 3 is a block diagram showing an example of the configuration of a direction finder according to the present invention. Gender switching signal time chart,
Figure 4 is a diagram showing the directivity switching order of an orthogonal directional antenna, Figure 5 is a block diagram showing an example of a direction finder using a conventional polarity reversal circuit, and Figure 6 is the polarity reversal circuit of Figure 5. It is a connection diagram showing an example. 1a, 1b... Orthogonal directional antenna, 2... Omnidirectional antenna, 3... Directivity switching section, 4... Switching signal phase shift section, 5... Combining section, 6... Receiving section and instruction section, 8...Switching signal generator, S1...Relay contact, T1, T2...Input transformer, T3...
Output transformer, D1, D2,..., D8...diode.

Claims

[Scope of Claim for Utility Model Registration] (1) In a direction finder equipped with a plurality of directional antennas, a directional switching section, a switching signal generating section, a receiving section, and an indicating section, the direction of the incoming radio waves can be indicated by reflection etc. A switching signal phase shifter is provided for shifting the phase of each of the plurality of directional switching signals from the switching signal generating section by 180 degrees when reversing, and the directional rotation phase of the directional switching section is shifted by 180 degrees. A sense inversion device for a direction finder, characterized in that it is configured to correct instructions. (2) Utility model registration claim (1) characterized in that the switching signal phase shifter is configured to shift the phase of each of the plurality of directional switching signals by 180 degrees by connecting relay contacts. A direction finder sense reversal device as described in . (3) Utility model registration claim no. Sense inversion device for direction finders as described in paragraph ). (4) The switching signal phase shifter is a sequential circuit of a semiconductor integrated circuit, and the phase of each of the multiple directional switching signals is changed to 1.
A sense reversing device for a direction finder as set forth in claim (1) of the utility model registration claim, which is characterized in that it is configured to shift the phase by 80 degrees.