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
Application number
NL136028A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of NL74388C publication Critical patent/NL74388C/xx

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
NL136028A 1947-05-16 1947-11-13 NL74388C (fr)

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 (fr) 1953-11-16

Family

ID=25009482

Family Applications (1)

Application Number Title Priority Date Filing Date
NL136028A NL74388C (fr) 1947-05-16 1947-11-13

Country Status (7)

Country Link
US (1) US2579324A (fr)
BE (1) BE476703A (fr)
CH (1) CH279127A (fr)
DE (2) DE828412C (fr)
FR (1) FR1004582A (fr)
GB (1) GB664672A (fr)
NL (1) NL74388C (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
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 (fr) * 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 Antenne a lentille comprenant un ou des reseaux de dipoles
GB2145575A (en) * 1983-05-25 1985-03-27 British Telecomm Mounting dielectric resonators
CA1221750A (fr) * 1983-11-21 1987-05-12 Richard D. Carver Montage de resonateurs dielectriques
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
CN116830386A (zh) 2020-10-27 2023-09-29 广州司南技术有限公司 人造介电材料以及由其制成的聚焦透镜
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)

* Cited by examiner, † Cited by third party
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 (fr) * 1944-04-22

Also Published As

Publication number Publication date
CH279127A (fr) 1951-11-15
BE476703A (fr) 1947-11-29
GB664672A (en) 1952-01-09
DE828412C (de) 1952-02-28
FR1004582A (fr) 1952-03-31
DE844177C (de) 1952-07-17
US2579324A (en) 1951-12-18

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