GB242342A - Improvements in wireless telegraph and telephone aerials - Google Patents

Improvements in wireless telegraph and telephone aerials

Info

Publication number
GB242342A
GB242342A GB1862424A GB1862424A GB242342A GB 242342 A GB242342 A GB 242342A GB 1862424 A GB1862424 A GB 1862424A GB 1862424 A GB1862424 A GB 1862424A GB 242342 A GB242342 A GB 242342A
Authority
GB
United Kingdom
Prior art keywords
aerials
aerial
curve
wave
length
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
GB1862424A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR606987D priority Critical patent/FR606987A/en
Priority to US47232A priority patent/US1821936A/en
Publication of GB242342A publication Critical patent/GB242342A/en
Priority to GB25111/26A priority patent/GB285106A/en
Priority to NL38220A priority patent/NL23989C/xx
Priority to FR34315D priority patent/FR34315E/en
Priority to US390963A priority patent/US1967881A/en
Priority to FR37439D priority patent/FR37439E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/04—Non-resonant antennas, e.g. travelling-wave antenna with parts bent, folded, shaped, screened or electrically loaded to obtain desired phase relation of radiation from selected sections of the antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H01Q21/10—Collinear arrangements of substantially straight elongated conductive units

Abstract

242,342. Franklin, C. S. Aug. 5, 1924. Aerials.-In order to secure a pronounced directional effect from aerials of the type that are electrically long in comparison with the signal wave-length, provision is made for suppressing radiation from every alternate half wavelength of the stationary-wave formation along the aerial. Fig. 2 shows, for example the normal conditions existing along an aerial A one and a. half times the signal wave-length, the stationarywave formation being shown by the curve B, whilst the polar diagram of radiation is illustrated by the six-point curve C. By doubling back on itself the central stationary-wave segment of the aerial, the resultant polar curve is altered to the form shown in Fig. 3. Alternatively, the doubled-back portion may be replaced by an electrical equivalent, such as an inductance coil with or without a parallel condenser, substantially tuned to the fundamental wavelength. The longer or higher the aerial, modified in this manner, the sharper is the directional effect. The invention may be applied to aerials of the type described in Specification 226,246.
GB1862424A 1924-08-05 1924-08-05 Improvements in wireless telegraph and telephone aerials Expired GB242342A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR606987D FR606987A (en) 1924-08-05 1925-07-22 Improvements to telegraphy and wireless telephony antennas
US47232A US1821936A (en) 1924-08-05 1925-07-31 Wireless telegraph and telephone aerial
GB25111/26A GB285106A (en) 1924-08-05 1926-10-08 Improvements in or relating to aerials and aerial systems for use in wireless telegraphy and telephony
NL38220A NL23989C (en) 1924-08-05 1927-09-12
FR34315D FR34315E (en) 1924-08-05 1927-10-05 Improvements to telegraphy and wireless telephony antennas
US390963A US1967881A (en) 1924-08-05 1929-09-07 Aerial and aerial system
FR37439D FR37439E (en) 1924-08-05 1929-09-17 Improvements to telegraphy and wireless telephony antennas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2688328A GB322714A (en) 1928-09-19 1928-09-19 Improvements in or relating to aerials and aerial systems

Publications (1)

Publication Number Publication Date
GB242342A true GB242342A (en) 1925-11-05

Family

ID=10250700

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1862424A Expired GB242342A (en) 1924-08-05 1924-08-05 Improvements in wireless telegraph and telephone aerials
GB2688328A Expired GB322714A (en) 1924-08-05 1928-09-19 Improvements in or relating to aerials and aerial systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2688328A Expired GB322714A (en) 1924-08-05 1928-09-19 Improvements in or relating to aerials and aerial systems

Country Status (1)

Country Link
GB (2) GB242342A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1158608A1 (en) * 1999-12-27 2001-11-28 Mitsubishi Denki Kabushiki Kaisha Multi-frequency sharing array antenna
DE102006022037A1 (en) * 2006-05-08 2007-11-15 Deutsche Telekom Ag Antenna system operating method, involves modulating transmission signal digitally on carrier wave, generating ground wave with one antenna and generating sky wave with another antenna in quasi manner
WO2017021711A1 (en) 2015-08-03 2017-02-09 Ian Atkinson Omni-directional collinear microstrip antenna

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1158608A1 (en) * 1999-12-27 2001-11-28 Mitsubishi Denki Kabushiki Kaisha Multi-frequency sharing array antenna
EP1158608A4 (en) * 1999-12-27 2004-09-29 Mitsubishi Electric Corp Multi-frequency sharing array antenna
DE102006022037A1 (en) * 2006-05-08 2007-11-15 Deutsche Telekom Ag Antenna system operating method, involves modulating transmission signal digitally on carrier wave, generating ground wave with one antenna and generating sky wave with another antenna in quasi manner
WO2017021711A1 (en) 2015-08-03 2017-02-09 Ian Atkinson Omni-directional collinear microstrip antenna

Also Published As

Publication number Publication date
GB322714A (en) 1929-12-19

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