NL74388C - - Google Patents
Info
- Publication number
- NL74388C NL74388C NL136028A NL136028A NL74388C NL 74388 C NL74388 C NL 74388C NL 136028 A NL136028 A NL 136028A NL 136028 A NL136028 A NL 136028A NL 74388 C NL74388 C NL 74388C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/10—Refracting or diffracting devices, e.g. lens, prism comprising three-dimensional array of impedance discontinuities, e.g. holes in conductive surfaces or conductive discs forming artificial dielectric
-
- 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
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US748447A US2579324A (en) | 1947-05-16 | 1947-05-16 | Metallic structure for delaying propagated waves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL74388C true NL74388C (no) | 1953-11-16 |
Family
ID=25009482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL136028A NL74388C (no) | 1947-05-16 | 1947-11-13 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2579324A (no) |
| BE (1) | BE476703A (no) |
| CH (1) | CH279127A (no) |
| DE (2) | DE828412C (no) |
| FR (1) | FR1004582A (no) |
| GB (1) | GB664672A (no) |
| NL (1) | NL74388C (no) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2670462A (en) * | 1949-05-28 | 1954-02-23 | Sponge glass seal for wave guides | |
| US2870439A (en) * | 1950-12-29 | 1959-01-20 | Western Union Telegraph Co | Microwave energy attenuating wall |
| US2716190A (en) * | 1951-02-23 | 1955-08-23 | Dow Chemical Co | Dielectric material |
| US2820206A (en) * | 1952-05-08 | 1958-01-14 | Itt | Microwave filters |
| US2805728A (en) * | 1953-08-27 | 1957-09-10 | Gen Dynamics Corp | Sound dispersion device with internal divergent acoustical lens |
| US2978702A (en) * | 1957-07-31 | 1961-04-04 | Arf Products | Antenna polarizer having two phase shifting medium |
| US3165749A (en) * | 1958-09-15 | 1965-01-12 | Thompson Ramo Wooldridge Inc | Microwave transmissive optical radiation reflectors |
| US3089142A (en) * | 1959-10-30 | 1963-05-07 | Sylvania Electric Prod | Artificial dielectric polarizer |
| US3087574A (en) * | 1959-11-05 | 1963-04-30 | Bolt Beranek & Newman | High acoustic transmission loss panel and the like |
| US3214760A (en) * | 1960-04-28 | 1965-10-26 | Textron Inc | Directional antenna with a two dimensional lens formed of flat resonant dipoles |
| US3887920A (en) * | 1961-03-16 | 1975-06-03 | Us Navy | Thin, lightweight electromagnetic wave absorber |
| US3320685A (en) * | 1964-04-29 | 1967-05-23 | Welch Scient Company | Diffraction apparatus |
| US3430248A (en) * | 1966-01-06 | 1969-02-25 | Us Army | Artificial dielectric material for use in microwave optics |
| CA1186406A (en) * | 1982-05-21 | 1985-04-30 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Dipole array lens antenna |
| GB2145575A (en) * | 1983-05-25 | 1985-03-27 | British Telecomm | Mounting dielectric resonators |
| CA1221750A (en) * | 1983-11-21 | 1987-05-12 | Richard D. Carver | Mounting dielectric resonators |
| SE468873B (sv) * | 1991-08-12 | 1993-03-29 | Nobeltech Electronics Ab | Kavitetsantenn med dielektrikum |
| US9923712B2 (en) | 2016-08-01 | 2018-03-20 | Movandi Corporation | Wireless receiver with axial ratio and cross-polarization calibration |
| US10291296B2 (en) | 2016-09-02 | 2019-05-14 | Movandi Corporation | Transceiver for multi-beam and relay with 5G application |
| US10256537B2 (en) * | 2016-10-26 | 2019-04-09 | Movandi Corporation | Lens-enhanced phased array antenna panel |
| US10199717B2 (en) | 2016-11-18 | 2019-02-05 | Movandi Corporation | Phased array antenna panel having reduced passive loss of received signals |
| US10484078B2 (en) | 2017-07-11 | 2019-11-19 | Movandi Corporation | Reconfigurable and modular active repeater device |
| EP4238186A4 (en) * | 2020-10-27 | 2024-03-27 | Guangzhou Sigtenna Technology Co., Ltd | ARTIFICIAL DIELECTRIC MATERIAL AND FOCUSING LENSES MADE THEREOF |
| CN113067159B (zh) * | 2021-03-23 | 2022-01-28 | 北京大学 | 一种高效无限通道行波-表面波天线及其实现方法 |
| CN116387843B (zh) * | 2023-04-12 | 2023-09-12 | 广东福顺天际通信有限公司 | 一种介质颗粒 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US706739A (en) * | 1901-05-29 | 1902-08-12 | Reginald A Fessenden | Conductor for wireless telegraphy. |
| FR327312A (fr) * | 1902-12-13 | 1903-06-19 | Germain | Nouveau genre de lentilles applicable à tous les appareils d'optique |
| DE587771C (de) * | 1928-03-22 | 1933-11-08 | Aeg | Hochspannungsisolator und Verfahren zu seiner Herstellung |
| US2298272A (en) * | 1938-09-19 | 1942-10-13 | Research Corp | Electromagnetic horn |
| US2317464A (en) * | 1940-10-29 | 1943-04-27 | Rca Corp | Electromagnetic wave horn radiator |
| US2289735A (en) * | 1941-02-07 | 1942-07-14 | Smith Lewis | Heating system |
| US2415807A (en) * | 1942-01-29 | 1947-02-18 | Sperry Gyroscope Co Inc | Directive electromagnetic radiator |
| US2464269A (en) * | 1942-06-12 | 1949-03-15 | Raytheon Mfg Co | Method and means for controlling the polarization of radiant energy |
| US2403657A (en) * | 1943-01-29 | 1946-07-09 | Rca Corp | Insulating and dielectric material |
| US2423643A (en) * | 1943-04-22 | 1947-07-08 | American Cyanamid Co | Condensation products of guanylurea with alkylene oxides |
| BE474864A (no) * | 1944-04-22 |
-
1947
- 1947-05-16 US US748447A patent/US2579324A/en not_active Expired - Lifetime
- 1947-10-10 GB GB27274/47A patent/GB664672A/en not_active Expired
- 1947-10-14 BE BE476703D patent/BE476703A/xx unknown
- 1947-11-13 NL NL136028A patent/NL74388C/xx active
-
1948
- 1948-04-19 CH CH279127D patent/CH279127A/fr unknown
- 1948-05-10 FR FR1004582D patent/FR1004582A/fr not_active Expired
- 1948-12-31 DE DEP28898D patent/DE828412C/de not_active Expired
- 1948-12-31 DE DEP28902A patent/DE844177C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH279127A (fr) | 1951-11-15 |
| US2579324A (en) | 1951-12-18 |
| DE844177C (de) | 1952-07-17 |
| BE476703A (no) | 1947-11-29 |
| FR1004582A (fr) | 1952-03-31 |
| GB664672A (en) | 1952-01-09 |
| DE828412C (de) | 1952-02-28 |