JPS57202165A - Resonator coupling type mic ask modulator - Google Patents

Resonator coupling type mic ask modulator

Info

Publication number
JPS57202165A
JPS57202165A JP8698181A JP8698181A JPS57202165A JP S57202165 A JPS57202165 A JP S57202165A JP 8698181 A JP8698181 A JP 8698181A JP 8698181 A JP8698181 A JP 8698181A JP S57202165 A JPS57202165 A JP S57202165A
Authority
JP
Japan
Prior art keywords
resonator
diode
modulation wave
ask modulator
coupling type
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
JP8698181A
Other languages
Japanese (ja)
Inventor
Hirotsugu Ogawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8698181A priority Critical patent/JPS57202165A/en
Publication of JPS57202165A publication Critical patent/JPS57202165A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To obtain an ASK modulator with large on/off ratio without insertion loss at diode-on, by constituting the ASK modulator through the coupling between a switching diode and a resonator. CONSTITUTION:A carrier wave is inputted to a carrier wave input port 1, passes through a microstrip line 2 and is outputted from a modulation wave output port 2. The modulation wave is inputted to a modulation wave pulse input port 3 and a diode 4 on a microstrip line type link resonator 3 is turned on or off. When the diode 4 turns on, the resonator 3 is operative as a resonator, the transmission loss of the line 2 is infinite, the resonator is at open loop when the diode 4 turns off and the resonator is inoperative as the resonator and the transmission loss of the line 2 is zero. Thus, a carrier wave switched with the modulation wave appears on the modulation wave output port 2.
JP8698181A 1981-06-08 1981-06-08 Resonator coupling type mic ask modulator Pending JPS57202165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8698181A JPS57202165A (en) 1981-06-08 1981-06-08 Resonator coupling type mic ask modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8698181A JPS57202165A (en) 1981-06-08 1981-06-08 Resonator coupling type mic ask modulator

Publications (1)

Publication Number Publication Date
JPS57202165A true JPS57202165A (en) 1982-12-10

Family

ID=13902041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8698181A Pending JPS57202165A (en) 1981-06-08 1981-06-08 Resonator coupling type mic ask modulator

Country Status (1)

Country Link
JP (1) JPS57202165A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232203U (en) * 1988-08-23 1990-02-28
EP0896433A2 (en) * 1997-08-05 1999-02-10 Alps Electric Co., Ltd. ASK modulator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232203U (en) * 1988-08-23 1990-02-28
EP0896433A2 (en) * 1997-08-05 1999-02-10 Alps Electric Co., Ltd. ASK modulator
EP0896433A3 (en) * 1997-08-05 1999-12-29 Alps Electric Co., Ltd. ASK modulator
US6208217B1 (en) 1997-08-05 2001-03-27 Alps Electric Co., Ltd. Ask modulator with frequency dependent voltage divider

Similar Documents

Publication Publication Date Title
ES2065966T3 (en) CERAMIC FILTER THAT HAS A NETWORK OF INTEGRAL MALFUNCTION.
TW350164B (en) Wide-band radio-frequency converter having multiple use of intermediate frequency translators
DE3850753T2 (en) Inductive data transmission system.
JPS6449303A (en) Wide band mixer
JPS57202165A (en) Resonator coupling type mic ask modulator
JPS56103501A (en) Mic connecting structure
JPS54155706A (en) Mixer circuit
JPS55109019A (en) Pin diode switch circuit
JPS56165439A (en) Optical two-way repeater
TW337624B (en) A pulse width modulation circuit
SU928525A1 (en) Device for registering power transmission line state
JPS5672505A (en) Microbalanced modulator
GB1059551A (en) Improvements relating to waveguide circuit arrangements
JPS5521616A (en) Signal unit in audio band
JPS57155865A (en) Microwave band linear modulator
JPS56107608A (en) Frequency mixer
JPS5549049A (en) Pulse modulation system
JPS6472445A (en) Output circuit for magnetron
JPS5379418A (en) Slot line frequency converter
JPS579155A (en) Signal trnsmission system
JPS5742256A (en) Four-phase phase modulator
JPS56160165A (en) Reference carrier reproducing circuit of unbalanced 4-phase modulated wave
JPS5685955A (en) Control signal transfer system
JPS55118243A (en) Signal transmission unit
JPS5499510A (en) Transmission system for hand-written telautogram