JPH03109450U - - Google Patents
Info
- Publication number
- JPH03109450U JPH03109450U JP1895490U JP1895490U JPH03109450U JP H03109450 U JPH03109450 U JP H03109450U JP 1895490 U JP1895490 U JP 1895490U JP 1895490 U JP1895490 U JP 1895490U JP H03109450 U JPH03109450 U JP H03109450U
- Authority
- JP
- Japan
- Prior art keywords
- frequency signal
- transmitting
- unit
- receiving
- receiving unit
- 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
- 230000010355 oscillation Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例のブロツク図、第２
図は従来のヘテロダイン方式送受信装置のブロツ
ク図である。
１，１７……分波器、２……送信分波フイルタ
、３……受信分波フイルタ、４，５……高周波フ
イルタ、６……サーキユレータ、７，１８……送
信ユニツト、８，１９……受信ユニツト、９……
電力増幅器、１０……ミキサ、１１……中間周波
増幅器、１２……局部発振器、１３……周波数シ
ンセサイザ、１４……前置増幅器、１５……ＩＦ
フイルタ、１６……主中間周波数増幅器。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figure is a block diagram of a conventional heterodyne transmitter/receiver. 1, 17... Duplexer, 2... Transmission branching filter, 3... Receiving branching filter, 4, 5... High frequency filter, 6... Circulator, 7, 18... Transmission unit, 8, 19... ...Receiving unit, 9...
Power amplifier, 10...Mixer, 11...Intermediate frequency amplifier, 12...Local oscillator, 13...Frequency synthesizer, 14...Preamplifier, 15...IF
Filter, 16...main intermediate frequency amplifier.
Claims (1)
ニツトならびに前記受信ユニツトをアンテナに接
続する分波器部とを有するヘテロダイン方式送受
信装置において、 入力される中間周波数信号を高周波信号に変換
するための局部発振信号の発振周波数を可変とす
る局部発振部を含む送信ユニツトと、入力される
受信信号である高周波信号を中間周波数信号に変
換するための局部発振信号の発振周波数を可変と
する局部発振器を含む受信ユニツトと、前記送信
ユニツト内の高周波信号の帯域制限を行う送信用
高周波フイルタならびに前記受信ユニツト内の高
周波信号を帯域制限を行う受信用高周波フイルタ
を含む分波器部とを有することを特徴とするヘテ
ロダイン方式送受信装置。[Claims for Utility Model Registration] In a heterodyne transmitting and receiving device having a transmitting unit, a receiving unit, and a duplexer section that connects the transmitting unit and the receiving unit to an antenna, an input intermediate frequency signal is converted into a high frequency signal. A transmitting unit that includes a local oscillation section that varies the oscillation frequency of a local oscillation signal for converting into an intermediate frequency signal; a receiving unit including a local oscillator; a transmitting high-frequency filter for band-limiting the high-frequency signal in the transmitting unit; and a duplexer section including a receiving high-frequency filter for band-limiting the high-frequency signal in the receiving unit. A heterodyne transmitter/receiver comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1895490U JPH03109450U (en) | 1990-02-26 | 1990-02-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1895490U JPH03109450U (en) | 1990-02-26 | 1990-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03109450U true JPH03109450U (en) | 1991-11-11 |
Family
ID=31522092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1895490U Pending JPH03109450U (en) | 1990-02-26 | 1990-02-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03109450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05235882A (en) * | 1992-02-20 | 1993-09-10 | Nec Corp | Subcarrier multiplex optical transmitter and i/o card used therefor |
-
1990
- 1990-02-26 JP JP1895490U patent/JPH03109450U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05235882A (en) * | 1992-02-20 | 1993-09-10 | Nec Corp | Subcarrier multiplex optical transmitter and i/o card used therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH03109450U (en) | ||
| JPS6038967Y2 (en) | Ultrasonic CW Doppler system | |
| JPS5717877A (en) | Frequency modulation system microwave sensor | |
| JPH032716U (en) | ||
| JPH02108445U (en) | ||
| JPH0516748Y2 (en) | ||
| JPS5579540A (en) | Fsk radio unit | |
| JPS61109244U (en) | ||
| JPH0165539U (en) | ||
| JPH02111948U (en) | ||
| JPS6193043U (en) | ||
| JPS6442469U (en) | ||
| JPS6187375U (en) | ||
| JPS6275656U (en) | ||
| JPS62146339U (en) | ||
| JPS62105643U (en) | ||
| JPS6247250U (en) | ||
| JPS6385933U (en) | ||
| JPH01126740U (en) | ||
| JPH01126642U (en) | ||
| JPH03111070U (en) | ||
| JPS61127465U (en) | ||
| JPS6437145U (en) | ||
| JPH03130576U (en) | ||
| JPS647445U (en) |