JPH0443034U

JPH0443034U -

Info

Publication number: JPH0443034U
Application number: JP8553190U
Authority: JP
Priority date: 1990-08-13
Filing date: 1990-08-13
Publication date: 1992-04-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の構成図、第２図ａ
は第１図の受信機４ａおよび送信機５ａより見た
アンテナ１ａと１ｂの合成放射パターン、第２図
ｂは第１図の受信機４ｂおよび送信機５ｂより見
たアンテナ１ａと１ｂの合成放射パターン、第３
図は人工衛星本体に実装されるアンテナ１ａと１
ｂの配置図、第４図は従来の無線通信装置の一例
を示す構成図、第５図は無指向性アンテナ単体の
指向軸を含む面内の放射パターンを示す図、第６
図は第４図の無線通信装置におけるアンテナの合
成放射パターンを示す図である。１ａ，１ｂ……アンテナ、２ａ，２ｂ……ダイ
プレクサ、３ａ，３ｂ……受信用ハイブリツド、
３ｃ，３ｄ……送信用ハイブリツド、４ａ，４ｂ
……受信機、５ａ，５ｂ……送信機、６ａ，６ｂ
……受信用カツプラ、６ｃ，６ｄ……送信用カツ
プラ。 Figure 1 is a configuration diagram of an embodiment of the present invention, Figure 2 a
is the combined radiation pattern of antennas 1a and 1b seen from receiver 4a and transmitter 5a in Figure 1, and Figure 2b is the combined radiation pattern of antennas 1a and 1b seen from receiver 4b and transmitter 5b in Figure 1. pattern, 3rd
The figure shows antennas 1a and 1 mounted on the satellite body.
4 is a configuration diagram showing an example of a conventional wireless communication device, FIG. 5 is a diagram showing an in-plane radiation pattern including the directivity axis of a single omnidirectional antenna, and FIG.
The figure is a diagram showing a composite radiation pattern of the antenna in the wireless communication device of FIG. 4. 1a, 1b...Antenna, 2a, 2b...Diplexer, 3a, 3b...Receiving hybrid,
3c, 3d... Hybrid for transmission, 4a, 4b
... Receiver, 5a, 5b ... Transmitter, 6a, 6b
...Katsupura for reception, 6c, 6d...Katsupura for transmission.

Claims

[Scope of utility model registration request]

First and second omnidirectional antennas having substantially equal radiation patterns, first and second receivers, and first and second transmitters are mounted on a structure with an indeterminate attitude. In the wireless communication device, the main radiation directions of the second omnidirectional antennas are arranged in opposite directions on the structure, and a first diplexer connected to the first antenna; a first receiving coupler connected to the received signal output side of the first diplexer and dividing and outputting the received signal output from the first diplexer into a high level output and a low level output; and a second receiving coupler connected to the second antenna. a diplexer, a second reception coupler connected to the reception signal output side of the second diplexer and dividing and outputting the reception signal output from the second diplexer into a high level output and a low level output; a first receiving hybrid that combines the high level output of the receiving coupler and the low level output of the second receiving coupler and outputs the result to the first receiver; and the low level output of the first receiving coupler. and a second reception hybrid that combines the high-level outputs of the second reception coupler and outputs it to the second receiver, and divides the output of the first transmitter into a high-level output and a low-level output. a first transmitting coupler that divides the output of the second transmitter into a high-level output and a low-level output, and outputs the output after dividing the output of the second transmitter into high-level output and low-level output; a first transmission hybrid that combines a high level output and a low level output of the second transmission coupler and outputs the result to the transmission signal input side of the first diplexer; and a low level output of the first transmission coupler. A wireless communication device comprising a second transmission hybrid that combines the output and the high-level output of the second transmission coupler and outputs it to the transmission signal input side of the second diplexer.