JPH0443271U - - Google Patents
Info
- Publication number
- JPH0443271U JPH0443271U JP8553390U JP8553390U JPH0443271U JP H0443271 U JPH0443271 U JP H0443271U JP 8553390 U JP8553390 U JP 8553390U JP 8553390 U JP8553390 U JP 8553390U JP H0443271 U JPH0443271 U JP H0443271U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- diode
- agc
- input
- agc detector
- 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.)
- Pending
Links
- 230000010287 polarization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Radio Relay Systems (AREA)
Description
第１図は本考案によるダイバーシチ受信装置の
一実施例を示すブロツク図、第２図は従来のダイ
バーシチ受信装置の一例を示すブロツク図である
。
１ａ，１ｂ……混合器、２ａ，２ｂ……第１の
利得制御増幅器、３ａ，３ｂ……帯域波器、４
ａ，４ｂ……ＡＧＣ検波器、５ａ，５ｂ……電圧
制御発振器、６……位相検波器、７ａ，７ｂ……
第２の利得制御増幅器、８……合成器、９ａ，９
ｂ，１１……メータ、１０……直流増幅器、Ｄ１
，Ｄ２……ダイオード。
FIG. 1 is a block diagram showing an embodiment of a diversity receiving device according to the present invention, and FIG. 2 is a block diagram showing an example of a conventional diversity receiving device. 1a, 1b...mixer, 2a, 2b...first gain control amplifier, 3a, 3b...bandwidth wave generator, 4
a, 4b...AGC detector, 5a, 5b...voltage controlled oscillator, 6...phase detector, 7a, 7b...
Second gain control amplifier, 8...Synthesizer, 9a, 9
b, 11...Meter, 10...DC amplifier, D1
, D 2 ... diode.
Claims (1)
つの位置で受信された電波で伝送された同一情報
を持つ２つの信号をそれぞれ第１および第２の入
力信号とし、前記第１の入力信号を第１の中間周
波信号に変換し、前記第２の入力信号を第２の中
間周波信号に変換し、これら第１と第２の中間周
波信号の出力のレベルと位相を等しくし前記第１
の入力信号のレベルと前記第２の入力信号のレベ
ルとをそれぞれ第１のＡＧＣ検波器および第２の
ＡＧＣ検波器により検出し前記検出した第１と第
２の入力信号のレベルの比に応じて予め設定され
たレベル比によつて前記第１と第２の中間周波信
号を合成し出力するダイバーシチ受信装置におい
て、前記第１と第２のＡＧＣ検波器の出力の極性
は同一であり前記第１のＡＧＣ検波器の出力側に
前記第１のＡＧＣ検波器の出力の極性と同一極性
の端子を接続した第１のダイオードと、前記第２
のＡＧＣ検波器の出力側に前記第２のＡＧＣ検波
器と同一極性の端子を接続し他端子を前記第１の
ダイオードの他端子に接続した第２のダイオード
と、前記第１と第２のダイオードが互いに接続さ
れた端子と接地電位を入力とするメータとを備え
たことを特徴とするダイバーシチ受信装置。 ２ 前記第１のダイオードと前記第２のダイオー
ドが互いに接続された端子に入力側を接続した直
流増幅器と、前記直流増幅器の出力側に接続され
たメータとを備えたことを特徴とする請求項１記
載のダイバーシチ受信装置。[Claims for Utility Model Registration] 1. Radio waves with two different polarization components or 2.
Two signals having the same information transmitted by radio waves received at two positions are used as first and second input signals, respectively, the first input signal is converted into a first intermediate frequency signal, and the second converts the input signal into a second intermediate frequency signal, equalizes the level and phase of the output of the first and second intermediate frequency signals, and
The level of the input signal and the level of the second input signal are detected by a first AGC detector and a second AGC detector, respectively, and according to the ratio of the levels of the detected first and second input signals. In the diversity receiving device that combines and outputs the first and second intermediate frequency signals according to a preset level ratio, the polarities of the outputs of the first and second AGC detectors are the same, and the polarity of the output of the first and second AGC detectors is the same. a first diode having a terminal connected to the output side of the first AGC detector with a terminal having the same polarity as the output polarity of the first AGC detector;
a second diode having a terminal with the same polarity as the second AGC detector connected to the output side of the AGC detector and the other terminal connected to the other terminal of the first diode; 1. A diversity receiving device comprising a terminal to which diodes are connected to each other and a meter receiving a ground potential as an input. 2. Claim comprising: a DC amplifier whose input side is connected to a terminal to which the first diode and the second diode are connected to each other; and a meter connected to the output side of the DC amplifier. 1. The diversity receiving device according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8553390U JPH0443271U (en) | 1990-08-13 | 1990-08-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8553390U JPH0443271U (en) | 1990-08-13 | 1990-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0443271U true JPH0443271U (en) | 1992-04-13 |
Family
ID=31634726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8553390U Pending JPH0443271U (en) | 1990-08-13 | 1990-08-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443271U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001054304A1 (en) * | 2000-01-18 | 2001-07-26 | Matsushita Electric Industrial Co., Ltd. | Radio communication device and radio communication method |
| WO2012120657A1 (en) * | 2011-03-09 | 2012-09-13 | 株式会社日立製作所 | Polarization-angle-division diversity wireless transmitter, wireless receiver, and wireless communication system |
| JP2015039218A (en) * | 2014-10-09 | 2015-02-26 | 株式会社日立製作所 | Polarization angle division diversity radio transmitter, radio receiver, and radio communication system |
-
1990
- 1990-08-13 JP JP8553390U patent/JPH0443271U/ja active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001054304A1 (en) * | 2000-01-18 | 2001-07-26 | Matsushita Electric Industrial Co., Ltd. | Radio communication device and radio communication method |
| WO2012120657A1 (en) * | 2011-03-09 | 2012-09-13 | 株式会社日立製作所 | Polarization-angle-division diversity wireless transmitter, wireless receiver, and wireless communication system |
| JP5632530B2 (en) * | 2011-03-09 | 2014-11-26 | 株式会社日立製作所 | Polarization angle division diversity radio transmitter, radio receiver, and radio communication system |
| US9407349B2 (en) | 2011-03-09 | 2016-08-02 | Hitachi, Ltd. | Polarization-angle-division diversity wireless transmitter, wireless receiver, and wireless communication system |
| US9722687B2 (en) | 2011-03-09 | 2017-08-01 | Hitachi, Ltd. | Polarization-angle-division diversity wireless transmitter, wireless receiver, and wireless communication system |
| JP2015039218A (en) * | 2014-10-09 | 2015-02-26 | 株式会社日立製作所 | Polarization angle division diversity radio transmitter, radio receiver, and radio communication system |
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