JPS5686503A - Mirror surface of frequency selection - Google Patents

Mirror surface of frequency selection

Info

Publication number
JPS5686503A
JPS5686503A JP16373479A JP16373479A JPS5686503A JP S5686503 A JPS5686503 A JP S5686503A JP 16373479 A JP16373479 A JP 16373479A JP 16373479 A JP16373479 A JP 16373479A JP S5686503 A JPS5686503 A JP S5686503A
Authority
JP
Japan
Prior art keywords
metallic plate
grooves
waves
plane
lambda2
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
JP16373479A
Other languages
Japanese (ja)
Inventor
Shigeru Makino
Yoshihiro Honma
Seiji Mano
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16373479A priority Critical patent/JPS5686503A/en
Publication of JPS5686503A publication Critical patent/JPS5686503A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Waveguides (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

PURPOSE:To obtain frequency selection mirror surface different from the direction of reflection by frequencies, by regularly providing grooves in pillar shape on a metallic plate and changing the parameter of the pillars. CONSTITUTION:A frequency selection mirror surface consists of a metallic plate 1a and grooves 1b of prism shape made on the metallic plate. When the length of sides of metallic lattice is taken respectively as (a) and (b), the incident angle of plane waves is taken as theta0, and the mirror plane is placed so that the incident plane is in parallel with the side of (b) in length, then the electromagnetic waves lambda2 in wavelength are reflected on the metallic plate 1a according to the incident direction 2 of waves, independently of the shape of grooves, by suitably selecting the values (a) and (b). That is, the electromagnetic waves in lambda2 are not entered the grooves, resulting that the grooved metallic plate 1a is equivalently regarded as a plane reflection plate to the waves in lambda2. Thus, the degree of freedom can be given to the direction of reflection by changing the slope of the metallic plate, allowing to reflect the electromagnetic waves in shorter wavelength to be reflected on the shape of grooves.
JP16373479A 1979-12-17 1979-12-17 Mirror surface of frequency selection Pending JPS5686503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16373479A JPS5686503A (en) 1979-12-17 1979-12-17 Mirror surface of frequency selection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16373479A JPS5686503A (en) 1979-12-17 1979-12-17 Mirror surface of frequency selection

Publications (1)

Publication Number Publication Date
JPS5686503A true JPS5686503A (en) 1981-07-14

Family

ID=15779647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16373479A Pending JPS5686503A (en) 1979-12-17 1979-12-17 Mirror surface of frequency selection

Country Status (1)

Country Link
JP (1) JPS5686503A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814785A (en) * 1988-01-25 1989-03-21 Hughes Aircraft Company Wideband gridded square frequency selective surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814785A (en) * 1988-01-25 1989-03-21 Hughes Aircraft Company Wideband gridded square frequency selective surface

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