JPS6051334A - Radio communication equipment - Google Patents

Radio communication equipment

Info

Publication number
JPS6051334A
JPS6051334A JP58160030A JP16003083A JPS6051334A JP S6051334 A JPS6051334 A JP S6051334A JP 58160030 A JP58160030 A JP 58160030A JP 16003083 A JP16003083 A JP 16003083A JP S6051334 A JPS6051334 A JP S6051334A
Authority
JP
Japan
Prior art keywords
reception
frequency
oscillator
local
transmission
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
Application number
JP58160030A
Other languages
Japanese (ja)
Inventor
Shogo Minami
南　省吾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP58160030A priority Critical patent/JPS6051334A/en
Publication of JPS6051334A publication Critical patent/JPS6051334A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE:To form a microwave band communication equipment having a local oscillating part which is provided with a reception following-up AFC function and is easy to adjust, by using one microwave band local oscillator and controlling the oscillation frequency of an oscillator of a VHF band. CONSTITUTION:A transmission signal passes a transmission part circuit from a transmission signal input 1 and is converted in a transmission frequency converter 3 and is inputted to a demultiplexer 5. Meanwhile, the output of a control oscillator 10 of a VHF band, which oscillates a differential frequency between a transmission local oscillation frequency and a reception local oscillation frequency, and the output of a transmission local oscillator 4 are mixed in a frequency mixer 11, and only the reception local oscillation frequency is obtained through a hybrid 12. This frequency is allowed to pass a band-pass filter 14 and is used as a reception local oscillation signal. further, the oscillation frequency of the voltage control oscillator 10 of the VHF band is controlled by a reception part circuit 8 for the purpose of making a reception intermediate frequency constant.

Description

【発明の詳細な説明】 本発明は、無線通信装置に関し、詳しくは、受信中間周
波数を一定にする為に受信局部発振器の発振周波数を変
化させる受信追従ＡＴＯの機能を持つマイクロ波帯無線
通信装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wireless communication device, and more specifically, a microwave band wireless communication device having a reception tracking ATO function that changes the oscillation frequency of a reception local oscillator in order to keep the reception intermediate frequency constant. Regarding.

従来、受信追従ムＦＯ機能を採用１−でいるマイクロ波
帯無線通信装置においては、受信中間周波数を一定にす
る為にマイクロ波帯受信局部発振器の発振周波数を制御
してｉた。Conventionally, in a microwave band wireless communication device employing a reception tracking FO function, the oscillation frequency of a microwave band reception local oscillator is controlled in order to keep the reception intermediate frequency constant.

しかしながら、この方法では送信用と受信用の一台のマ
イクロ波帯局部発振器が必要であり、しかも育イクロ波
帯発振器の発振周波数を制御する為に高価で且つ電気的
調整の難しい局部発振部となる欠点があつ九。However, this method requires one microwave band local oscillator for transmitting and receiving, and in addition, in order to control the oscillation frequency of the raised microwave band oscillator, a local oscillator that is expensive and difficult to adjust electrically is required. There are nine drawbacks.

本発明は従来の技術に内在する上記欠点を解消する為に
なされ友ものであり、従って本発明の目的は、受信追従
ムＦＯ機能をもちしかも一台のマイクロ波帯局部発振器
のみを用い、廉価に構成でき、且つ電気的調整の容易な
局部発振部をもつ新規なマイクロ波帯無線通信装置を提
供することにある。The present invention has been made in order to eliminate the above-mentioned drawbacks inherent in the conventional technology, and therefore, an object of the present invention is to provide a reception tracking system FO function, use only one microwave band local oscillator, and provide a low-cost It is an object of the present invention to provide a new microwave band wireless communication device having a local oscillation section that can be configured as follows and that can be easily electrically adjusted.

上記目的を達成する為に、本発明に係る無線通信装置は
、送信局部発振器の出力に送信局部発振周波数と受信局
部発振周波数の差の周波数を発振するＶＨν帯の発振器
の出力を混合し、混合した後の信号の中の送信局部発振
周波数成分を送信局部発振源として用い、受信局部発振
周波数成分を受信局部発振源として用いるマイクロ波帯
無線通信装置であって、前記ＶＨＦ帯の発振器の発振周
波数を自動的に制御する機能を持たせて構成される。In order to achieve the above object, the wireless communication device according to the present invention mixes the output of the transmitting local oscillator with the output of a VHν band oscillator that oscillates a frequency that is the difference between the transmitting local oscillation frequency and the receiving local oscillation frequency. A microwave band wireless communication device that uses a transmission local oscillation frequency component in the signal after the VHF band as a transmission local oscillation source and a reception local oscillation frequency component as a reception local oscillation source, the oscillation frequency of the VHF band oscillator. It is configured with a function to automatically control.

次に本発明をその好ましい一実施例について図面を参照
しながら具体的に説明しよう。Next, a preferred embodiment of the present invention will be specifically explained with reference to the drawings.

第１図は受信追従ＡＦＯ機能をもった従来のマイクロ波
帯無線通信装置の概要のブロック図である。FIG. 1 is a schematic block diagram of a conventional microwave band wireless communication device having a reception tracking AFO function.

図示の如く、従来におけるこの種の無線通信装置は、送
信局部発振器亭と受信局部発振器７の一つのマイクロ波
帯発振器をもち、しかも受信局部発振器７の発振周波数
は、受信中間周波数を一定にする為に、受信部回路ｌ中
のＡＦＯ機能によシ制御される。As shown in the figure, this type of conventional wireless communication device has one microwave band oscillator, a transmitting local oscillator and a receiving local oscillator 7, and the oscillation frequency of the receiving local oscillator 7 keeps the receiving intermediate frequency constant. Therefore, it is controlled by the AFO function in the receiver circuit l.

第一図は本発明による受信追従Ａ’ＦＯ機能をもつ九マ
イクロ波帯無線通信装置の第１の実施例を示すブロック
構成図である。本発明の第１の実施例においては、マイ
クロ波帯局部発振器は送信局部発振器ダのみ用い、受信
局部発振源としては、送信局部発振周波数と受信局部発
振周波数の差の周波数を発振するＶＨ？帯の制御発振器
ｌθの出力と送信局部発振器すの出力を周波数混合器／
ノにて混合し、受信局部発振周波数のみを帯域通過型ろ
波器／ダにて通過させて受信局部発振信号として用いる
。FIG. 1 is a block diagram showing a first embodiment of a nine microwave band wireless communication device having a reception tracking A'FO function according to the present invention. In the first embodiment of the present invention, only the transmitting local oscillator D is used as the microwave band local oscillator, and the receiving local oscillation source is VH? The output of the band controlled oscillator lθ and the output of the transmitting local oscillator are connected to a frequency mixer/
Then, only the received local oscillation frequency is passed through a band-pass filter/da to be used as a received local oscillation signal.

更に、受信中間周波数を一定にする為に、ＶＨＩＩ’帯
の電圧制御発振器１０の発振周波数が受信部回路ｔによ
シ制御される。Furthermore, in order to keep the reception intermediate frequency constant, the oscillation frequency of the VHII' band voltage controlled oscillator 10 is controlled by the receiver circuit t.

第３図は本発明による第一の実施例を示すブロック構成
図である。本発明による第一の実施例においては、送信
局部発振器亭の出力はハイプリッ）／Ｊによシ二分され
九後に受信側の周波数混合器／／にてＶＨＦ帯の電圧制
御発振器ｌＯの出力と混合され、受信局部発振信号を得
ている。FIG. 3 is a block diagram showing a first embodiment of the present invention. In the first embodiment of the present invention, the output of the transmitting local oscillator is divided into two by the high voltage control oscillator /J and then mixed with the output of the VHF band voltage controlled oscillator lO by the frequency mixer // on the receiving side. The received local oscillation signal is obtained.

以上説明したように、本発明によれば、一台のマイクロ
波帯局部発振器を用いしかもＶＨＦ帯の発振器の発振周
波数を制御する事により、受信追従ムＩＦＯ機能をもた
せた廉価でしか本電気的調整の簡単な局部発振部をもっ
たマイクロ波帯無線通信装置を提供する事ができる。As explained above, according to the present invention, by using one microwave band local oscillator and controlling the oscillation frequency of the VHF band oscillator, the present invention can be used at a low cost and with the receiver tracking IFO function. It is possible to provide a microwave band wireless communication device having a local oscillation section that is easy to adjust.

【図面の簡単な説明】[Brief explanation of drawings]

よるＶイクロ波ａｍ線通信装置の第１の実施例を示すブ
ロック構成図、＃ＷＪ図は本発明によるマイクロ波帯無
線通信装置の第一の実施例を示すブロック構成図である
。 ｌ・・・送（１信号入力端子、λ・・・送信部回路、３
・・・送信周波数変換器、ダ・・・送信局部発振器、ｊ
・・・分波器、ル・・・受信周波数変換器、り・・・受
信局部発振器、ｔ・・・受信部回路、９・・・受信信号
出力端子、　ｉ。 ・・・ＷＨＩＰ帯電圧制御発振器、ｌ）・・・周波数混
合器、／コ・・・ハイプリツ）、／Ｊ、／４’・・・帯
域通過型ろ波器特詐出願人　日本電気株式会社 代　理　人　弁理士　熊谷雄太部 第１図 第２図Figure #WJ is a block diagram showing a first embodiment of a microwave band wireless communication device according to the present invention. l...Transmission (1 signal input terminal, λ...transmission section circuit, 3
...Transmission frequency converter, da...Transmission local oscillator, j
... Duplexer, L... Reception frequency converter, R... Reception local oscillator, t... Receiver circuit, 9... Reception signal output terminal, i. ...WHIP voltage control oscillator, l)...frequency mixer, /co...hypritz), /J, /4'...bandpass filter Special fraud applicant NEC Corporation representative Patent Attorney Yutabe Kumagai Figure 1 Figure 2

Claims (1)

【特許請求の範囲】 送信局部発振器の出力に送信局部発振周波数と局部発振
周波数成分を送信局部発振源として用い。 受信局部発振周波数成分を受信局部発振源として用いる
マイクロ波帯無線通信装置であって、前記ＶＨＦ帯の発
振器の発振周波数を自動的に制御する機能を持友せた事
を特徴とするマイクロ波帯無線通信装置。[Claims] A transmitting local oscillation frequency and a local oscillating frequency component are used as a transmitting local oscillation source in the output of a transmitting local oscillator. A microwave band wireless communication device using a receiving local oscillation frequency component as a receiving local oscillation source, the microwave band characterized by having a function of automatically controlling the oscillation frequency of the VHF band oscillator. Wireless communication device.
JP58160030A 1983-08-30 1983-08-30 Radio communication equipment Pending JPS6051334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58160030A JPS6051334A (en) 1983-08-30 1983-08-30 Radio communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58160030A JPS6051334A (en) 1983-08-30 1983-08-30 Radio communication equipment

Publications (1)

Publication Number Publication Date
JPS6051334A true JPS6051334A (en) 1985-03-22

Family

ID=15706435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58160030A Pending JPS6051334A (en) 1983-08-30 1983-08-30 Radio communication equipment

Country Status (1)

Country Link
JP (1) JPS6051334A (en)

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