GB2140215B - Extra low frequency underground wireless antenna - Google Patents

Extra low frequency underground wireless antenna

Info

Publication number
GB2140215B
GB2140215B GB08311247A GB8311247A GB2140215B GB 2140215 B GB2140215 B GB 2140215B GB 08311247 A GB08311247 A GB 08311247A GB 8311247 A GB8311247 A GB 8311247A GB 2140215 B GB2140215 B GB 2140215B
Authority
GB
United Kingdom
Prior art keywords
low frequency
wireless antenna
extra low
underground wireless
frequency underground
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
GB08311247A
Other versions
GB2140215A (en
Inventor
David Michael Hine
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 GB08311247A priority Critical patent/GB2140215B/en
Publication of GB2140215A publication Critical patent/GB2140215A/en
Application granted granted Critical
Publication of GB2140215B publication Critical patent/GB2140215B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/04—Adaptation for subterranean or subaqueous use
GB08311247A 1983-04-26 1983-04-26 Extra low frequency underground wireless antenna Expired GB2140215B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08311247A GB2140215B (en) 1983-04-26 1983-04-26 Extra low frequency underground wireless antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08311247A GB2140215B (en) 1983-04-26 1983-04-26 Extra low frequency underground wireless antenna

Publications (2)

Publication Number Publication Date
GB2140215A GB2140215A (en) 1984-11-21
GB2140215B true GB2140215B (en) 1986-08-06

Family

ID=10541665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08311247A Expired GB2140215B (en) 1983-04-26 1983-04-26 Extra low frequency underground wireless antenna

Country Status (1)

Country Link
GB (1) GB2140215B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697191A (en) * 1985-05-08 1987-09-29 Science Applications International Corporation Omniazimuthal antenna
US6218994B1 (en) * 1993-10-04 2001-04-17 The United States Of America As Represented By The Secretary Of The Navy Small antennas for communication over sea ice

Also Published As

Publication number Publication date
GB2140215A (en) 1984-11-21

Similar Documents

Publication Publication Date Title
EP0115270A3 (en) Frequency independent antenna
HK18588A (en) Radio receiver
DE3465840D1 (en) Double loop antenna
GB8327656D0 (en) Reduced radio frequency interference
GB8404638D0 (en) Radio frequency transducer
GB2169453B (en) Radio frequency antenna system
GB8423019D0 (en) Antenna
GB2143386B (en) Radio receiver
GB8316510D0 (en) Antenna
GB8411624D0 (en) Reception antenna
GB8321308D0 (en) Radio frequency coil
GB2140215B (en) Extra low frequency underground wireless antenna
GB2167626B (en) Radio frequency antenna systems
HUT35425A (en) Microwave antenna
GB8404777D0 (en) Radio transmitter arrangements
GB8324666D0 (en) Radio receiver
GB8432454D0 (en) Radio communication
GB8428159D0 (en) Radio frequency synthesis
GB8411761D0 (en) Loop antenna
GB8329368D0 (en) Radio antennae
GB8304169D0 (en) Radio antennae
GB2096398B (en) High performance radio antenna
YU251783A (en) Broad band antenna
GB8415086D0 (en) Antenna
GB8325693D0 (en) High-frequency antenna

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee