JPS5579504A - Slot array antenna - Google Patents

Slot array antenna

Info

Publication number
JPS5579504A
JPS5579504A JP15307078A JP15307078A JPS5579504A JP S5579504 A JPS5579504 A JP S5579504A JP 15307078 A JP15307078 A JP 15307078A JP 15307078 A JP15307078 A JP 15307078A JP S5579504 A JPS5579504 A JP S5579504A
Authority
JP
Japan
Prior art keywords
slots
array antenna
unit
freely
metal case
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
JP15307078A
Other languages
Japanese (ja)
Inventor
Akira Endo
Katsuhiro Kimura
Hiroshi Morozumi
Kenji Sekine
Yukitsugu Fukumori
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.)
Hitachi Ltd
Nissan Motor Co Ltd
Original Assignee
Hitachi Ltd
Nissan Motor 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 Hitachi Ltd, Nissan Motor Co Ltd filed Critical Hitachi Ltd
Priority to JP15307078A priority Critical patent/JPS5579504A/en
Priority to US06/078,825 priority patent/US4346774A/en
Priority to FR7923818A priority patent/FR2437325A1/en
Priority to DE19792938764 priority patent/DE2938764A1/en
Priority to GB7933232A priority patent/GB2034147B/en
Publication of JPS5579504A publication Critical patent/JPS5579504A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/0315—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for using multiplexing techniques

Abstract

PURPOSE:To improve the equipment of a Doppler rader unit on a vehicle by thinning the unit by constituting a slot array antenna, whose radio beam direction can freely be set, on the lower surface of the metal case of the unit. CONSTITUTION:A slot array antenna used for a Doppler rader unit for the speed sensor of a motorcar has a line of slots 9 formed on metal case 2 on one side and is fitted to waveguide 6. To opening 6b at one end of waveguide 6, transmission-reception part 3 is fitted and terminal 6a on the other end is made of a short surface or resistive terminal. The line of slots 9 is covered with water-proof sheet 7. The direction of a beam can freely be set by varying intervals of slots 9 and the antenna gain can freely be set by increasing or decreasing the number of slots as well. In addition, the array antenna can be thinned because of formation direct on the metal case 2 and when it is fitted under floor 4 of a vehicle, the antenna part is never close to the road surface, so that its equipment can be improved.
JP15307078A 1978-09-26 1978-12-13 Slot array antenna Pending JPS5579504A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP15307078A JPS5579504A (en) 1978-12-13 1978-12-13 Slot array antenna
US06/078,825 US4346774A (en) 1978-09-26 1979-09-25 Doppler radar mounting structure for motor vehicles
FR7923818A FR2437325A1 (en) 1978-09-26 1979-09-25 DOPPLER RADAR MOUNTING STRUCTURE FOR MOTOR VEHICLES
DE19792938764 DE2938764A1 (en) 1978-09-26 1979-09-25 ASSEMBLY STRUCTURE AND SLOT-RADIATOR SYSTEM FOR RADAR DEVICES FOR DETECTING THE SPEED OF MOTOR VEHICLES EQUIPPED WITH IT
GB7933232A GB2034147B (en) 1978-09-26 1979-09-25 Doppler radar mounting structure for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15307078A JPS5579504A (en) 1978-12-13 1978-12-13 Slot array antenna

Publications (1)

Publication Number Publication Date
JPS5579504A true JPS5579504A (en) 1980-06-16

Family

ID=15554320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15307078A Pending JPS5579504A (en) 1978-09-26 1978-12-13 Slot array antenna

Country Status (1)

Country Link
JP (1) JPS5579504A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177494A (en) * 1989-02-16 1993-01-05 Robert Bosch Gmbh Vehicular slot antenna system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177494A (en) * 1989-02-16 1993-01-05 Robert Bosch Gmbh Vehicular slot antenna system

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