ITTO910139A1 - Struttura dicroica discriminante in frequenza con banda passante variabile, e sue applicazioni - Google Patents
Struttura dicroica discriminante in frequenza con banda passante variabile, e sue applicazioniInfo
- Publication number
- ITTO910139A1 ITTO910139A1 IT000139A ITTO910139A ITTO910139A1 IT TO910139 A1 ITTO910139 A1 IT TO910139A1 IT 000139 A IT000139 A IT 000139A IT TO910139 A ITTO910139 A IT TO910139A IT TO910139 A1 ITTO910139 A1 IT TO910139A1
- Authority
- IT
- Italy
- Prior art keywords
- dichroic
- applications
- variable bandwidth
- frequency discriminating
- discriminating structure
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/204—Filters in which spectral selection is performed by means of a conductive grid or array, e.g. frequency selective surfaces
-
- 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
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/002—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices being reconfigurable or tunable, e.g. using switches or diodes
-
- 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
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO910139A IT1245423B (it) | 1991-02-27 | 1991-02-27 | Struttura dicroica discriminante in frequenza con banda passante variabile, e sue applicazioni |
PCT/EP1992/000386 WO1992016031A1 (en) | 1991-02-27 | 1992-02-24 | A frequency-discriminating dichroic structure with a variable passband and applications thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO910139A IT1245423B (it) | 1991-02-27 | 1991-02-27 | Struttura dicroica discriminante in frequenza con banda passante variabile, e sue applicazioni |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO910139A0 ITTO910139A0 (it) | 1991-02-27 |
ITTO910139A1 true ITTO910139A1 (it) | 1992-08-27 |
IT1245423B IT1245423B (it) | 1994-09-20 |
Family
ID=11408995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITTO910139A IT1245423B (it) | 1991-02-27 | 1991-02-27 | Struttura dicroica discriminante in frequenza con banda passante variabile, e sue applicazioni |
Country Status (2)
Country | Link |
---|---|
IT (1) | IT1245423B (it) |
WO (1) | WO1992016031A1 (it) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5386215A (en) * | 1992-11-20 | 1995-01-31 | Massachusetts Institute Of Technology | Highly efficient planar antenna on a periodic dielectric structure |
JPH08505707A (ja) * | 1993-01-08 | 1996-06-18 | マサチユセツツ・インスチチユート・オブ・テクノロジー | 低損失光及び光電子集積回路 |
GB9412850D0 (en) * | 1994-06-27 | 1994-08-17 | Secr Defence | Absorbent panel |
WO1996029621A1 (en) * | 1995-03-17 | 1996-09-26 | Massachusetts Institute Of Technology | Metallodielectric photonic crystal |
DE19713735C1 (de) * | 1997-04-03 | 1998-08-20 | Daimler Benz Aerospace Ag | Verfahren zur Herstellung von polarisationsselektiven Reflektoren |
DE69830360T2 (de) * | 1997-05-01 | 2005-10-27 | Kitagawa Industries Co., Ltd., Nagoya | Absorber für electromagnetsiche Wellen |
GB2332567B (en) * | 1997-12-17 | 2002-09-04 | Marconi Gec Ltd | Magnetic devices |
JP3739230B2 (ja) | 1999-04-26 | 2006-01-25 | 株式会社日立製作所 | 高周波通信装置 |
FR2858469B1 (fr) * | 2003-07-30 | 2005-11-18 | Univ Rennes | Antenne a cavite resonante, reconfigurable |
DE102006061312A1 (de) * | 2006-12-22 | 2008-06-26 | Giesecke & Devrient Gmbh | Antenne zur Messung einer Bewegungsinformation nach dem Doppler-Prinzip, Transponder, System und Verfahren |
FR2959611B1 (fr) | 2010-04-30 | 2012-06-08 | Thales Sa | Element rayonnant compact a cavites resonantes. |
CN108983457B (zh) * | 2018-08-10 | 2021-12-03 | 南方科技大学 | 一种颜色可调谐的液晶彩色滤光片 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3309704A (en) * | 1965-09-07 | 1967-03-14 | North American Aviation Inc | Tunable absorber |
US3631501A (en) * | 1970-02-16 | 1971-12-28 | Gen Dynamics Corp | Microwave phase shifter with liquid dielectric having metallic particles in suspension |
US4987418A (en) * | 1987-12-28 | 1991-01-22 | United Technologies Corporation | Ferroelectric panel |
SE463692B (sv) * | 1989-05-19 | 1991-01-07 | F Stefan Johansson | Antennanordning med reflektor eller lins bestaaende av ett frekvensstyrt galler |
-
1991
- 1991-02-27 IT ITTO910139A patent/IT1245423B/it active IP Right Grant
-
1992
- 1992-02-24 WO PCT/EP1992/000386 patent/WO1992016031A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO1992016031A1 (en) | 1992-09-17 |
ITTO910139A0 (it) | 1991-02-27 |
IT1245423B (it) | 1994-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970128 |