GB622057A - Improvements in resonant circuits for use with ultra-short waves - Google Patents

Improvements in resonant circuits for use with ultra-short waves

Info

Publication number
GB622057A
GB622057A GB6478/47A GB647847A GB622057A GB 622057 A GB622057 A GB 622057A GB 6478/47 A GB6478/47 A GB 6478/47A GB 647847 A GB647847 A GB 647847A GB 622057 A GB622057 A GB 622057A
Authority
GB
United Kingdom
Prior art keywords
electrode
width
ultra
spiral
piece
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
GB6478/47A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB622057A publication Critical patent/GB622057A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H5/00—One-port networks comprising only passive electrical elements as network components
    • H03H5/003—One-port networks comprising only passive electrical elements as network components comprising distributed impedance elements together with lumped impedance elements

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Microwave Tubes (AREA)

Abstract

622,057. Condensers. PHILIPS LAMPS, Ltd. March 7, 1947, No. 6478. Convention date, May 24, 1944. [Class 37] A resonant circuit for ultra-short waves includes a variable condenser having spiral electrodes, one of which has a width varying in stepwise manner in its longitudinal direction. In the particular embodiment, Fig. 1, a stationary spiral electrode 4, of constant width, is connected by a cross-piece 5 to an inner conductor 1. A movable, suitably guided, porcelain rod 7, connected to an outer conductor 2 by foil 10, carries an electrode 6. Conductors 1 and 2 are interconnected by a cross-piece 3. The width of the metal band, Fig. 2, comprising the unwound electrode 6, varies in stepwise manner such that each spiral turn, A, B, has a different constant width. Corners 11 may be bevelled, and the electrode widths may be equal in several succeeding turns.
GB6478/47A 1944-05-24 1947-03-07 Improvements in resonant circuits for use with ultra-short waves Expired GB622057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL622057X 1944-05-24

Publications (1)

Publication Number Publication Date
GB622057A true GB622057A (en) 1949-04-26

Family

ID=19788455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6478/47A Expired GB622057A (en) 1944-05-24 1947-03-07 Improvements in resonant circuits for use with ultra-short waves

Country Status (2)

Country Link
DE (1) DE806794C (en)
GB (1) GB622057A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192310A (en) * 1984-06-14 1988-01-06 Airtech Ltd Tunable RF cavity device
US11384661B2 (en) 2017-10-13 2022-07-12 Daimler Ag Valve train for an internal combustion engine of a motor vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192310A (en) * 1984-06-14 1988-01-06 Airtech Ltd Tunable RF cavity device
US11384661B2 (en) 2017-10-13 2022-07-12 Daimler Ag Valve train for an internal combustion engine of a motor vehicle

Also Published As

Publication number Publication date
DE806794C (en) 1951-06-18

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