GB529290A - Improvements in or relating to ultra high frequency electro-magnetic wave transmission - Google Patents

Improvements in or relating to ultra high frequency electro-magnetic wave transmission

Info

Publication number
GB529290A
GB529290A GB1570439A GB1570439A GB529290A GB 529290 A GB529290 A GB 529290A GB 1570439 A GB1570439 A GB 1570439A GB 1570439 A GB1570439 A GB 1570439A GB 529290 A GB529290 A GB 529290A
Authority
GB
United Kingdom
Prior art keywords
guide
line
tapered
extension
dielectric
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
GB1570439A
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.)
BAE Systems Electronics Ltd
Original Assignee
BAE Systems Electronics Ltd
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
Priority to US210595A priority Critical patent/US2207845A/en
Application filed by BAE Systems Electronics Ltd filed Critical BAE Systems Electronics Ltd
Publication of GB529290A publication Critical patent/GB529290A/en
Application status is Expired legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00Coupling devices of the waveguide type
    • H01P5/08Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced with unbalanced lines or devices
    • H01P5/103Hollow-waveguide/coaxial-line transitions

Abstract

529,290. Dielectric guides for displacement waves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 26, 1939, No. 15704. Convention date, May 28, 1938. [Class 40 (iii)] Relates to means for matching the impedances of a transmission line and a wave guide, comprising a coupling formed by a tapered extension of the inner line conductor extending within the guide and terminated in a tapered element of dielectric material whereby conduction currents in the line are gradually transferred into displacement currents in the guide. In the Fig. the outer conductor 3 of the coaxial line 1 is of the same diameter as the pipe 31 forming the wave guide 9, the inner conductor 5 having a tapered end 6 to which is attached a tapered extension 15 of insulating material more than one wavelength long. The value of the dielectric constant of the extension 15 may be arranged to decrease towards the tapered end where it approaches the value for the guide medium; the non-uniform dielectric constant may be effected by embedding particles in the dielectric material. When a two-wire transmission line is used, the two conductors are terminated in a similar manner to the inner conductor 5 of the coaxial line.
GB1570439A 1938-05-28 1939-05-26 Improvements in or relating to ultra high frequency electro-magnetic wave transmission Expired GB529290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US210595A US2207845A (en) 1938-05-28 1938-05-28 Propagation of waves in a wave guide

Publications (1)

Publication Number Publication Date
GB529290A true GB529290A (en) 1940-11-18

Family

ID=22783513

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1570439A Expired GB529290A (en) 1938-05-28 1939-05-26 Improvements in or relating to ultra high frequency electro-magnetic wave transmission

Country Status (2)

Country Link
US (1) US2207845A (en)
GB (1) GB529290A (en)

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