JPS6349954Y2 - - Google Patents
Info
- Publication number
- JPS6349954Y2 JPS6349954Y2 JP636282U JP636282U JPS6349954Y2 JP S6349954 Y2 JPS6349954 Y2 JP S6349954Y2 JP 636282 U JP636282 U JP 636282U JP 636282 U JP636282 U JP 636282U JP S6349954 Y2 JPS6349954 Y2 JP S6349954Y2
- Authority
- JP
- Japan
- Prior art keywords
- antennas
- reception
- circuit
- space diversity
- diversity receiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000035945 sensitivity Effects 0.000 claims description 5
- 230000005684 electric field Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
【考案の詳細な説明】
本考案スペースダイバシイテイ受信機詳しくは
車載用ラジオのアンテナ装置に関し、その目的は
AM（中波）のアンテナ感度を上げる事にある。[Detailed description of the invention] The space diversity receiver of this invention is specifically related to an antenna device for a car radio, and its purpose is to
The purpose is to increase the antenna sensitivity of AM (medium wave).
本考案は、FM用にダイバシイテイの為２本の
アンテナを立てているが、AM用にはその内の１
本しか使用していない事に注目し、それをFMは
各々独立に使い、AMは二本を合成する事によ
り、アンテナ感度を高めてなるものである。 This invention has two antennas for diversity for FM, but one of them is for AM.
Note that only one wire is used, FM uses each wire independently, and AM combines the two to increase antenna sensitivity.
以下、本考案の一実施例を第２図により説明す
る。図面は本考案の実施例を示すブロツク図であ
り、FM等の高い周波数域ではチヨークコイル
９，９′により夫々独立して働く。即ちアンテナ
１，１′に誘起した信号は、各々のFM受信機２，
２′により音声として再生される。又電界検出器
３，３′により受信機２，２′の入力電界強度にマ
ルチパス度合を合成した受信状態の良さが示さ
れ、比較器５にて受信状態の良い方が選択され、
信号切換回路４にて選択された音声のみがオーデ
イオ回路６に送られ、スピーカー７より発音され
る。 An embodiment of the present invention will be described below with reference to FIG. The drawing is a block diagram showing an embodiment of the present invention, and in a high frequency range such as FM, the choke coils 9 and 9' work independently. That is, the signals induced in the antennas 1 and 1' are transmitted to the respective FM receivers 2 and 1'.
2' is reproduced as audio. Further, the electric field detectors 3 and 3' indicate the quality of the reception condition, which is a combination of the input electric field strength of the receivers 2 and 2' and the degree of multipath, and the comparator 5 selects the one with the better reception condition.
Only the audio selected by the signal switching circuit 4 is sent to the audio circuit 6 and is output from the speaker 7.
しかし、AM部は中波の為、チヨークコイル
９，９′を通つて二つのアンテナ１，１′の信号が
合成される。中波の為互の位相はほぼ合つてお
り、AM受信器８の入力信号は、２つのアンテナ
１，１′の合計となりアンテナ感度が上つた事に
なる。 However, since the AM section is a medium wave, the signals of the two antennas 1 and 1' are combined through the chiyoke coils 9 and 9'. Since it is a medium wave, the mutual phases are almost the same, and the input signal to the AM receiver 8 is the sum of the two antennas 1 and 1', which means that the antenna sensitivity has increased.
以上述べた如く本考案によれば、AMでは２本
のアンテナの電圧を合成できるのでアンテナ感度
を良くする効果がある。 As described above, according to the present invention, the voltages of two antennas can be combined in AM, which has the effect of improving antenna sensitivity.
図面は本考案によるブロツク図である。
１…アンテナ、２…FM受信機、３…電界検出
回路、４…信号切換回路、５…比較器、６…オー
デイオ回路、７…スピーカ、８…AM受信器、９
…チヨークコイル。
The drawing is a block diagram according to the present invention. 1... Antenna, 2... FM receiver, 3... Electric field detection circuit, 4... Signal switching circuit, 5... Comparator, 6... Audio circuit, 7... Speaker, 8... AM receiver, 9
...Chiyo Coil.
Claims (1)
テナに結合され、該第１、第２のアンテナの受信
状態の良好な一方を選択受信するFM受信回路お
よびAM受信回路を具えたスペースダイバシイテ
イ受信機において、上記第１、第２のアンテナと
の間にチヨークコイルを設け、AM受信時上記第
１、第２のアンテナに誘起したAM信号を合成し
て上記AM受信回路に供給しAM受信時における
アンテナ感度を高めたことを特徴とするスペース
ダイバシイテイ受信機におけるアンテナ装置。 It comprises first and second antennas, and an FM reception circuit and an AM reception circuit that are coupled to the first and second antennas and selectively receive one of the first and second antennas with good reception conditions. In the space diversity receiver, a chiyoke coil is provided between the first and second antennas, and the AM signals induced in the first and second antennas during AM reception are combined and supplied to the AM receiving circuit. An antenna device for a space diversity receiver characterized by increased antenna sensitivity during AM reception.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP636282U JPS58111539U (en) | 1982-01-22 | 1982-01-22 | Antenna device in space diversity receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP636282U JPS58111539U (en) | 1982-01-22 | 1982-01-22 | Antenna device in space diversity receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58111539U JPS58111539U (en) | 1983-07-29 |
| JPS6349954Y2 true JPS6349954Y2 (en) | 1988-12-22 |
Family
ID=30019143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP636282U Granted JPS58111539U (en) | 1982-01-22 | 1982-01-22 | Antenna device in space diversity receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58111539U (en) |
-
1982
- 1982-01-22 JP JP636282U patent/JPS58111539U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58111539U (en) | 1983-07-29 |
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