JPS54121093A - Microwave device - Google Patents

Microwave device

Info

Publication number
JPS54121093A
JPS54121093A JP2830478A JP2830478A JPS54121093A JP S54121093 A JPS54121093 A JP S54121093A JP 2830478 A JP2830478 A JP 2830478A JP 2830478 A JP2830478 A JP 2830478A JP S54121093 A JPS54121093 A JP S54121093A
Authority
JP
Japan
Prior art keywords
reception
electric waves
wave
polarized wave
waves radiated
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
JP2830478A
Other languages
Japanese (ja)
Inventor
Yasuhiro Ishii
Katsuzo Uenishi
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP2830478A priority Critical patent/JPS54121093A/en
Publication of JPS54121093A publication Critical patent/JPS54121093A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified

Abstract

PURPOSE:To increase the reception sensitivity for the device which performs the identification for the mobile objects by the microwave by changing the polarized wave for the electric waves radiated from the trans mission detector and the reception answering unit in order to give distinction betweenthe signal wave and the unnecessary wave. CONSTITUTION:For the device which performs the identification for the mobile objects via the microwave, the styles of the electric waves radiated from both transmission detector 1, 3, 5, 7 and 9 and reception answering unit 2, 4, 6, 8 and 10 respectively are turned into a horizontal or vertical circular polarized wave. In this case, the forward or backward turn is secured in the case of the circular polarized wave. And the electric waves radiated from these transmission detectors plus the antennas of those reception answering units are composed of microstrip antennas 11 provided at hybrid circuit 12, thus enabling both the radiation and reception of the electric waves to each paired dervice.
JP2830478A 1978-03-14 1978-03-14 Microwave device Pending JPS54121093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2830478A JPS54121093A (en) 1978-03-14 1978-03-14 Microwave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2830478A JPS54121093A (en) 1978-03-14 1978-03-14 Microwave device

Publications (1)

Publication Number Publication Date
JPS54121093A true JPS54121093A (en) 1979-09-19

Family

ID=12244871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2830478A Pending JPS54121093A (en) 1978-03-14 1978-03-14 Microwave device

Country Status (1)

Country Link
JP (1) JPS54121093A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106883A (en) * 1980-12-24 1982-07-02 Japanese National Railways<Jnr> Data transmission device
JPS61118030A (en) * 1984-11-14 1986-06-05 Oki Electric Ind Co Ltd Radio communication system between vehicles on road
JPS62208722A (en) * 1986-03-07 1987-09-14 Sharp Corp Radio equipment
EP0328836A2 (en) * 1987-10-27 1989-08-23 Cedcom Network Systems Pty. Limited Pseudo-passive universal communicator system
FR2631725A1 (en) * 1988-05-20 1989-11-24 Guena Jean RADIO SYSTEM FOR TRANSMITTING DATA TO A PASSIVE END
US4926187A (en) * 1987-09-24 1990-05-15 Fujitsu Limited Radio-frequency identification system
JPH02132394A (en) * 1988-11-14 1990-05-21 Kenwood Corp Moving body identifying device
JPH06301888A (en) * 1994-01-07 1994-10-28 Oki Electric Ind Co Ltd Radio communication system between road and vehicle
JP2004512759A (en) * 2000-10-20 2004-04-22 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Transceiver for time division system
JP2007221557A (en) * 2006-02-17 2007-08-30 Brother Ind Ltd Interrogator in wireless tag communication system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936294A (en) * 1972-07-29 1974-04-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936294A (en) * 1972-07-29 1974-04-04

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106883A (en) * 1980-12-24 1982-07-02 Japanese National Railways<Jnr> Data transmission device
JPS61118030A (en) * 1984-11-14 1986-06-05 Oki Electric Ind Co Ltd Radio communication system between vehicles on road
JPH058615B2 (en) * 1984-11-14 1993-02-02 Oki Electric Ind Co Ltd
JPS62208722A (en) * 1986-03-07 1987-09-14 Sharp Corp Radio equipment
US4926187A (en) * 1987-09-24 1990-05-15 Fujitsu Limited Radio-frequency identification system
EP0328836A2 (en) * 1987-10-27 1989-08-23 Cedcom Network Systems Pty. Limited Pseudo-passive universal communicator system
FR2631725A1 (en) * 1988-05-20 1989-11-24 Guena Jean RADIO SYSTEM FOR TRANSMITTING DATA TO A PASSIVE END
JPH02132394A (en) * 1988-11-14 1990-05-21 Kenwood Corp Moving body identifying device
JPH06301888A (en) * 1994-01-07 1994-10-28 Oki Electric Ind Co Ltd Radio communication system between road and vehicle
JP2004512759A (en) * 2000-10-20 2004-04-22 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Transceiver for time division system
JP2007221557A (en) * 2006-02-17 2007-08-30 Brother Ind Ltd Interrogator in wireless tag communication system

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