AU2001253002A1 - A tunable impedance surface - Google Patents

A tunable impedance surface

Info

Publication number
AU2001253002A1
AU2001253002A1 AU2001253002A AU5300201A AU2001253002A1 AU 2001253002 A1 AU2001253002 A1 AU 2001253002A1 AU 2001253002 A AU2001253002 A AU 2001253002A AU 5300201 A AU5300201 A AU 5300201A AU 2001253002 A1 AU2001253002 A1 AU 2001253002A1
Authority
AU
Australia
Prior art keywords
tunable impedance
impedance surface
tunable
impedance
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.)
Abandoned
Application number
AU2001253002A
Inventor
Robin J. Harvey
Robert Y. Loo
James H. Schaffner
Daniel Sievenpiper
Greg Tangonan
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.)
HRL Laboratories LLC
Original Assignee
HRL Laboratories LLC
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
Priority claimed from US09/537,923 external-priority patent/US6538621B1/en
Application filed by HRL Laboratories LLC filed Critical HRL Laboratories LLC
Publication of AU2001253002A1 publication Critical patent/AU2001253002A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/006—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
    • H01Q15/0066—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces said selective devices being reconfigurable, tunable or controllable, e.g. using switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/006—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
    • H01Q15/008—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces said selective devices having Sievenpipers' mushroom elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H59/00—Electrostatic relays; Electro-adhesion relays
    • H01H59/0009—Electrostatic relays; Electro-adhesion relays making use of micromechanics

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Aerials With Secondary Devices (AREA)
AU2001253002A 2000-03-29 2001-03-28 A tunable impedance surface Abandoned AU2001253002A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09537923 2000-03-29
US09/537,923 US6538621B1 (en) 2000-03-29 2000-03-29 Tunable impedance surface
US09589859 2000-06-08
US09/589,859 US6483480B1 (en) 2000-03-29 2000-06-08 Tunable impedance surface
PCT/US2001/009973 WO2001073893A1 (en) 2000-03-29 2001-03-28 A tunable impedance surface

Publications (1)

Publication Number Publication Date
AU2001253002A1 true AU2001253002A1 (en) 2001-10-08

Family

ID=27065645

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001253002A Abandoned AU2001253002A1 (en) 2000-03-29 2001-03-28 A tunable impedance surface

Country Status (5)

Country Link
US (1) US6483480B1 (en)
EP (1) EP1287589A1 (en)
JP (1) JP2003529261A (en)
AU (1) AU2001253002A1 (en)
WO (1) WO2001073893A1 (en)

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Also Published As

Publication number Publication date
EP1287589A1 (en) 2003-03-05
US6483480B1 (en) 2002-11-19
JP2003529261A (en) 2003-09-30
WO2001073893A1 (en) 2001-10-04

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