IT1219615B - Antenna riconfigurabile in frequenza-copertura-polarizzazione - Google Patents
Antenna riconfigurabile in frequenza-copertura-polarizzazioneInfo
- Publication number
- IT1219615B IT1219615B IT48067/88A IT4806788A IT1219615B IT 1219615 B IT1219615 B IT 1219615B IT 48067/88 A IT48067/88 A IT 48067/88A IT 4806788 A IT4806788 A IT 4806788A IT 1219615 B IT1219615 B IT 1219615B
- Authority
- IT
- Italy
- Prior art keywords
- polarization
- cover
- reconfigurable antenna
- frequency reconfigurable
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/001—Crossed polarisation dual antennas
-
- 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
- H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q3/245—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching in the focal plane of a focussing device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT48067/88A IT1219615B (it) | 1988-06-09 | 1988-06-09 | Antenna riconfigurabile in frequenza-copertura-polarizzazione |
| EP19890110358 EP0345768A3 (en) | 1988-06-09 | 1989-06-08 | Antenna reconfigurable with respect to frequency, coverage and polarisation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT48067/88A IT1219615B (it) | 1988-06-09 | 1988-06-09 | Antenna riconfigurabile in frequenza-copertura-polarizzazione |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8848067A0 IT8848067A0 (it) | 1988-06-09 |
| IT1219615B true IT1219615B (it) | 1990-05-24 |
Family
ID=11264328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT48067/88A IT1219615B (it) | 1988-06-09 | 1988-06-09 | Antenna riconfigurabile in frequenza-copertura-polarizzazione |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0345768A3 (it) |
| IT (1) | IT1219615B (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6836258B2 (en) | 2002-11-22 | 2004-12-28 | Ems Technologies Canada, Ltd. | Complementary dual antenna system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3795004A (en) * | 1973-02-26 | 1974-02-26 | Us Army | Cassegrain radar antenna with selectable acquisition and track modes |
| US4535338A (en) * | 1982-05-10 | 1985-08-13 | At&T Bell Laboratories | Multibeam antenna arrangement |
| JPS5911007A (ja) * | 1982-07-12 | 1984-01-20 | Nec Corp | ２周波数帯共用のアンテナ装置 |
-
1988
- 1988-06-09 IT IT48067/88A patent/IT1219615B/it active
-
1989
- 1989-06-08 EP EP19890110358 patent/EP0345768A3/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| IT8848067A0 (it) | 1988-06-09 |
| EP0345768A3 (en) | 1990-11-28 |
| EP0345768A2 (en) | 1989-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI894285A7 (fi) | Antenni | |
| DE69032554D1 (de) | Frequenzsynthesizer | |
| KR900006738A (ko) | 전자렌지 | |
| DE68916889D1 (de) | Frequenzsynthesierer. | |
| KR890015529A (ko) | 팔목장착형무선기 | |
| KR900011361A (ko) | 전파 흡수재 | |
| DE69026151D1 (de) | Frequenzsynthesizer | |
| DE58907950D1 (de) | Frequenzsynthesegerät. | |
| GB2219143B (en) | Planar antenna | |
| BR8801085A (pt) | Antena | |
| DK719988A (da) | Antenne til anvendelse i flere frekvensomraader | |
| DE69030276D1 (de) | Frequenzsynthetisierer | |
| KR900702595A (ko) | 능동 안테나 | |
| ATA280588A (de) | Mobile brecheranlage | |
| FI890978A7 (fi) | Antenni | |
| IT1219615B (it) | Antenna riconfigurabile in frequenza-copertura-polarizzazione | |
| FI891674L (fi) | Radiolaite | |
| ATA72188A (de) | Antennenanordnung | |
| IT8847862A0 (it) | Antenna | |
| DK160889D0 (da) | Mikroboelgeovn | |
| NO178449C (no) | Antennesystem | |
| KR910009951U (ko) | 도포형 내장 안테나 | |
| BR6801963U (pt) | Disposicao introduzida em radio | |
| BR6802785U (pt) | Disposicao introduzida em antena | |
| BR6601179U (pt) | Disposicao em antena |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970117 |