NL246679A - - Google Patents
Info
- Publication number
- NL246679A NL246679A NL246679DA NL246679A NL 246679 A NL246679 A NL 246679A NL 246679D A NL246679D A NL 246679DA NL 246679 A NL246679 A NL 246679A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
- H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
-
- 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR782448A FR1219321A (fr) | 1958-12-23 | 1958-12-23 | Nouveau système rayonnant pour ondes ultra-courtes |
| FR783970A FR1221812A (fr) | 1958-12-23 | 1959-01-14 | Nouvel aérien rayonnant plusieurs faisceaux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL246679A true NL246679A (nl) |
Family
ID=26183709
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL247291D NL247291A (nl) | 1958-12-23 | ||
| NL132576D NL132576C (nl) | 1958-12-23 | ||
| NL246679D NL246679A (nl) | 1958-12-23 |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL247291D NL247291A (nl) | 1958-12-23 | ||
| NL132576D NL132576C (nl) | 1958-12-23 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3102265A (nl) |
| CH (2) | CH387715A (nl) |
| DE (2) | DE1210464B (nl) |
| FR (1) | FR1221812A (nl) |
| GB (2) | GB938928A (nl) |
| NL (3) | NL246679A (nl) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL301079A (nl) * | 1962-12-12 | |||
| US3898667A (en) * | 1974-02-06 | 1975-08-05 | Rca Corp | Compact frequency reuse antenna |
| SE412959B (sv) * | 1978-03-02 | 1980-03-24 | Saab Scania Ab | Sett att bestemma leget for ett antal foremal samt system for utforande av settet |
| DE3402659A1 (de) * | 1984-01-26 | 1985-08-01 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Reflektorantenne fuer den betrieb in mehreren frequenzbereichen |
| FR2568062B1 (fr) * | 1984-07-17 | 1986-11-07 | Thomson Alcatel Espace | Antenne bifrequence a meme couverture de zone a polarisation croisee pour satellites de telecommunications |
| DE3431986A1 (de) * | 1984-08-30 | 1986-03-06 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Polarisationstrennender reflektor |
| US4625214A (en) * | 1984-10-15 | 1986-11-25 | Rca Corporation | Dual gridded reflector structure |
| DE3609084A1 (de) * | 1985-07-26 | 1987-02-05 | Messerschmitt Boelkow Blohm | Reflektoranordnung |
| DE3609078A1 (de) * | 1985-07-26 | 1987-02-05 | Messerschmitt Boelkow Blohm | Reflektoranordnung |
| CA1263180A (en) * | 1985-11-12 | 1989-11-21 | Rca Corporation | Linearly polarized grid reflector antenna systems with improved cross-polarization performance |
| USRE34410E (en) * | 1986-08-14 | 1993-10-19 | Hughes Aircraft Company | Antenna system for hybrid communication satellite |
| US4792813A (en) * | 1986-08-14 | 1988-12-20 | Hughes Aircraft Company | Antenna system for hybrid communications satellite |
| US7144351B2 (en) * | 2002-10-23 | 2006-12-05 | Kastelic Edward P | Multi-configurable exercise device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE582007C (de) * | 1933-08-07 | Ernst Gerhard Dr | Anordnung zur Aussendung von mehreren voneinander unabhaengigen und verschiedenen Strahlenkegeln elektrischer Wellen | |
| DE668231C (de) * | 1935-05-26 | 1938-11-28 | Julius Pintsch Kom Ges | Reflektoranordnung |
| US2646563A (en) * | 1946-09-24 | 1953-07-21 | Us Navy | V-beam height indicator |
| US2790169A (en) * | 1949-04-18 | 1957-04-23 | Itt | Antenna |
| CH326809A (de) * | 1954-11-11 | 1957-12-31 | Patelhold Patentverwertung | Richtantennensystem mit Umlenkspiegeln |
| FR1219321A (fr) * | 1958-12-23 | 1960-05-17 | Cie Francais Thomson Houston | Nouveau système rayonnant pour ondes ultra-courtes |
-
0
- NL NL247291D patent/NL247291A/xx unknown
- NL NL132576D patent/NL132576C/xx active
- DE DEP1270134A patent/DE1270134B/de active Pending
- NL NL246679D patent/NL246679A/xx unknown
-
1959
- 1959-01-14 FR FR783970A patent/FR1221812A/fr not_active Expired
- 1959-12-22 DE DEC20424A patent/DE1210464B/de active Pending
- 1959-12-23 CH CH8224859A patent/CH387715A/fr unknown
- 1959-12-23 GB GB43743/59A patent/GB938928A/en not_active Expired
-
1960
- 1960-01-04 US US181A patent/US3102265A/en not_active Expired - Lifetime
- 1960-01-14 GB GB1389/60A patent/GB938930A/en not_active Expired
- 1960-01-14 CH CH35360A patent/CH418412A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB938930A (en) | 1963-10-09 |
| CH418412A (fr) | 1966-08-15 |
| NL247291A (nl) | |
| GB938928A (en) | 1963-10-09 |
| NL132576C (nl) | |
| DE1270134B (de) | 1968-06-12 |
| CH387715A (fr) | 1965-02-15 |
| FR1221812A (fr) | 1960-06-03 |
| DE1210464B (de) | 1966-02-10 |
| US3102265A (en) | 1963-08-27 |