GB494857A - Improvements in or relating to electromagnetic resonators for use in radio or like apparatus - Google Patents

Improvements in or relating to electromagnetic resonators for use in radio or like apparatus

Info

Publication number
GB494857A
GB494857A GB2817/37A GB281737A GB494857A GB 494857 A GB494857 A GB 494857A GB 2817/37 A GB2817/37 A GB 2817/37A GB 281737 A GB281737 A GB 281737A GB 494857 A GB494857 A GB 494857A
Authority
GB
United Kingdom
Prior art keywords
resonator
cylinder
electric
magnetic flux
lines
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2817/37A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Julius Pintsch AG
Original Assignee
Julius Pintsch AG
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 by Julius Pintsch AG filed Critical Julius Pintsch AG
Publication of GB494857A publication Critical patent/GB494857A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H01P1/209—Hollow waveguide filters comprising one or more branching arms or cavities wholly outside the main waveguide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/06—Cavity resonators

Abstract

494,857. Electric resonators. PINTSCH AKT.-GES., J. Jan. 30, 1937, No. 2817. Convention date, Jan. 31, 1936. [Class 40 (iii)] A coilless resonator has its least dimension not substantially less than the wave-length to which it is tuned, so that nodal lines of oscillatory electric and magnetic flux are formed as closed curves in the space enclosed by the resonator. The latter may comprise a cylinder with a slit parallel to its axis, or an entire cylinder excited inductively, or a toroid 11 in which the lines of electric flux are closed curves around the circular axis of the toroid while the lines of magnetic flux are circles with their centres on the axis 5, or in which the converse condition holds. Damping may be reduced by coating the resonator with polished copper or silver or by keeping it at a low temperature. In modifications the directions of the electric and magnetic flux may be interchanged, and in a cylinder the resonator may in that case be excited by means of a rod projecting into one end of the cylinder.
GB2817/37A 1936-01-31 1937-01-30 Improvements in or relating to electromagnetic resonators for use in radio or like apparatus Expired GB494857A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE494857X 1936-01-31

Publications (1)

Publication Number Publication Date
GB494857A true GB494857A (en) 1938-11-02

Family

ID=6544788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2817/37A Expired GB494857A (en) 1936-01-31 1937-01-30 Improvements in or relating to electromagnetic resonators for use in radio or like apparatus

Country Status (4)

Country Link
US (1) US2199045A (en)
FR (1) FR817017A (en)
GB (1) GB494857A (en)
NL (1) NL51366C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL72297C (en) * 1938-06-18
US2424002A (en) * 1940-11-04 1947-07-15 Research Corp High-frequency electronic tube
US2450893A (en) * 1941-05-17 1948-10-12 Sperry Corp High-frequency tube structure
US2752485A (en) * 1942-07-17 1956-06-26 Westinghouse Electric Corp Ultrahigh frequency wave control means
US2420712A (en) * 1942-11-26 1947-05-20 Western Union Telegraph Co Coaxial cable and method of making same
US2530373A (en) * 1943-05-04 1950-11-21 Bell Telephone Labor Inc Ultra high frequency electronic device
US2485029A (en) * 1944-08-30 1949-10-18 Philco Corp Frequency stabilizer for oscillators
USRE23598E (en) * 1944-08-30 1952-12-23 High-frequency transmission system
US2508426A (en) * 1946-03-22 1950-05-23 Sperry Corp Ultra high frequency apparatus
US2704431A (en) * 1949-01-17 1955-03-22 Northrop Aircraft Inc Stable resonant circuit
CN101849145B (en) * 2005-10-19 2013-01-02 阿卢伊齐奥·M·克鲁兹 Distributive optical energy system

Also Published As

Publication number Publication date
FR817017A (en) 1937-08-24
US2199045A (en) 1940-04-30
NL51366C (en)

Similar Documents

Publication Publication Date Title
GB494857A (en) Improvements in or relating to electromagnetic resonators for use in radio or like apparatus
GB549459A (en) Improvements in or relating to variable permeability tuning systems
GB604095A (en) Improvements in or relating to variable inductances for use in oscillating circuits
GB479880A (en) High frequency inductance coil with adjustable inductance value
GB937175A (en) Improvements in cavity resonators
GB507655A (en) Inductive coupling and regulation of coupled electrical oscillatory circuits
GB1469839A (en) Hyperfine optical filters
GB404659A (en) Improvements in wireless receiving apparatus
GB628812A (en) Improvements in or relating to moving-core inductance coils
DK60664C (en) High-frequency apparatus, in particular Radio receiver, the Tuning of which is made by Changing the Magnetization of Mass Core Coils.
GB433366A (en) Improvements in or relating to high frequency coils
GB621150A (en) Improvements in or relating to magnetic cores used as coil holders in oscillating circuits
GB605353A (en) Improvements in or relating to tuning devices for superheterodyne receivers
GB565776A (en) Improvements in and relating to inductance coils
GB616573A (en) Improvements in or relating to radio-receivers
GB445998A (en) Improvements in high frequency inductance devices
GB460503A (en) High frequency coil
GB592031A (en) Electric coupling circuit
GB594701A (en) Tuned electrical circuits
GB568436A (en) Improvements in or relating to variable inductance devices and variable permeabilitytuning arrangements
GB1138863A (en) A magnetic core
GB1125364A (en) Tuning fork vibrators or similar reed-type vibrators
GB559330A (en) Improvements in or relating to adjustable inductance devices
CA413717A (en) Magnetically tuned resonant circuit
GB516080A (en) Improvements in or relating to high frequency coils of variable inductance