IT1254362B - Dispositivo di assorbimento a risonanza strutturale per la riduzione delle riflessioni radar. - Google Patents

Dispositivo di assorbimento a risonanza strutturale per la riduzione delle riflessioni radar.

Info

Publication number
IT1254362B
IT1254362B ITRM920352A ITRM920352A IT1254362B IT 1254362 B IT1254362 B IT 1254362B IT RM920352 A ITRM920352 A IT RM920352A IT RM920352 A ITRM920352 A IT RM920352A IT 1254362 B IT1254362 B IT 1254362B
Authority
IT
Italy
Prior art keywords
radar
panels
reduction
frequencies
metallic
Prior art date
Application number
ITRM920352A
Other languages
English (en)
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 filed Critical
Priority to ITRM920352A priority Critical patent/IT1254362B/it
Publication of ITRM920352A0 publication Critical patent/ITRM920352A0/it
Priority to PCT/IT1993/000047 priority patent/WO1993023892A1/en
Publication of ITRM920352A1 publication Critical patent/ITRM920352A1/it
Application granted granted Critical
Publication of IT1254362B publication Critical patent/IT1254362B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Dispositivo per la riduzione dell'energia elettromagnetica riflessa da strutture qualsiasi, alle frequenze più basse dello spettro radar, costituito da pannelli relativamente sottili, simmetricamente intervallati (Fig. 1) sulla stessa struttura da pro-teggere, se metallica e continua (Fig. 2), oppure su una superficie metallica conforme a quella da proteggere, se non metallica o discontinua (Fig. 3). Detti pannelli sono realizzati con materiale elettromagneticamente inerte, opportunamente caricato con elementi metallici, in modo da risultare moderatamente risonante, in presenza della superficie metallica sottostante, alle basse frequenze interessate e, perciò, relativamente sottile. La disposizione particolare dei pannelli e la loro moderata risonanza consente di ottenere gli elevati valori di assorbimento necessari alle basse frequenze radar, altrimenti irrealizzabili. L'invenzione si colloca nel campo tecnico dell'elettromagnetismo, più in particolare in quello della compatibilità elettromagnetica e trova applicazione nel campo del radar, civili e militari.
ITRM920352A 1992-05-12 1992-05-12 Dispositivo di assorbimento a risonanza strutturale per la riduzione delle riflessioni radar. IT1254362B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITRM920352A IT1254362B (it) 1992-05-12 1992-05-12 Dispositivo di assorbimento a risonanza strutturale per la riduzione delle riflessioni radar.
PCT/IT1993/000047 WO1993023892A1 (en) 1992-05-12 1993-05-10 Structurally resonating absorption device for the reduction of radar reflections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRM920352A IT1254362B (it) 1992-05-12 1992-05-12 Dispositivo di assorbimento a risonanza strutturale per la riduzione delle riflessioni radar.

Publications (3)

Publication Number Publication Date
ITRM920352A0 ITRM920352A0 (it) 1992-05-12
ITRM920352A1 ITRM920352A1 (it) 1993-11-12
IT1254362B true IT1254362B (it) 1995-09-14

Family

ID=11400997

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM920352A IT1254362B (it) 1992-05-12 1992-05-12 Dispositivo di assorbimento a risonanza strutturale per la riduzione delle riflessioni radar.

Country Status (2)

Country Link
IT (1) IT1254362B (it)
WO (1) WO1993023892A1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4299387B2 (ja) 1998-10-05 2009-07-22 Ｔｄｋ株式会社 電波吸収体組立用部材および電波吸収体の製造方法
GB2353638A (en) * 1999-08-25 2001-02-28 Secr Defence Low frequency electromagnetic absorption surface
US20130222171A1 (en) * 2012-01-12 2013-08-29 Booz, Allen & Hamilton Radio-frequency (rf) precision nulling device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479994A (en) * 1983-05-18 1984-10-30 The United States Of America As Represented By The Secretary Of The Army Wide band energy absorbing camouflage blanket

Also Published As

Publication number Publication date
ITRM920352A1 (it) 1993-11-12
ITRM920352A0 (it) 1992-05-12
WO1993023892A1 (en) 1993-11-25

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