NL89425C - - Google Patents
Info
- Publication number
- NL89425C NL89425C NL89425DA NL89425C NL 89425 C NL89425 C NL 89425C NL 89425D A NL89425D A NL 89425DA NL 89425 C NL89425 C NL 89425C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
- H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE727527X | 1952-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL89425C true NL89425C (ja) |
Family
ID=6635486
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL89425D NL89425C (ja) | 1952-03-03 | ||
| NLAANVRAGE8001458,A NL176342B (nl) | 1952-03-03 | Massagesproeier. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE8001458,A NL176342B (nl) | 1952-03-03 | Massagesproeier. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2880418A (ja) |
| BE (1) | BE518091A (ja) |
| GB (1) | GB727527A (ja) |
| NL (2) | NL176342B (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3413644A (en) * | 1961-11-23 | 1968-11-26 | Siemens Ag | Antenna having at least two radiators fed with different phase |
| KR100441146B1 (ko) * | 2001-11-16 | 2004-07-22 | (주)하이게인안테나 | 이동통신 서비스용 중계기의 노치형 안테나 |
| CN106380436B (zh) * | 2016-08-10 | 2018-06-01 | 山东阳谷华泰化工股份有限公司 | 一种二硫化二异丙基黄原酸酯的制备方法 |
| US10553930B2 (en) * | 2016-12-30 | 2020-02-04 | Symantec Corporation | Antenna system for wireless communication devices and other wireless applications |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2163770A (en) * | 1935-03-05 | 1939-06-27 | Telefunken Gmbh | Antenna |
| US2238904A (en) * | 1936-04-28 | 1941-04-22 | Rca Corp | Short wave communication system |
| US2134126A (en) * | 1936-07-17 | 1938-10-25 | Frederick J Hooven | Aircraft landing system |
| US2298449A (en) * | 1941-11-08 | 1942-10-13 | Bell Telephone Labor Inc | Antenna |
| US2310853A (en) * | 1941-12-20 | 1943-02-09 | Rca Corp | Antenna |
| US2419552A (en) * | 1943-06-12 | 1947-04-29 | Standard Telephones Cables Ltd | Radio antenna |
| US2444320A (en) * | 1944-08-10 | 1948-06-29 | Rca Corp | Antenna system |
-
0
- BE BE518091D patent/BE518091A/xx unknown
- NL NL89425D patent/NL89425C/xx active
- NL NLAANVRAGE8001458,A patent/NL176342B/xx unknown
-
1953
- 1953-02-20 US US338057A patent/US2880418A/en not_active Expired - Lifetime
- 1953-02-27 GB GB5610/53A patent/GB727527A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL176342B (nl) | |
| GB727527A (en) | 1955-04-06 |
| US2880418A (en) | 1959-03-31 |
| BE518091A (ja) |