JPS5525237A - Medium wave radio broadcasting antenna - Google Patents

Medium wave radio broadcasting antenna

Info

Publication number
JPS5525237A
JPS5525237A JP9782478A JP9782478A JPS5525237A JP S5525237 A JPS5525237 A JP S5525237A JP 9782478 A JP9782478 A JP 9782478A JP 9782478 A JP9782478 A JP 9782478A JP S5525237 A JPS5525237 A JP S5525237A
Authority
JP
Japan
Prior art keywords
points
antenna
cast
wire
current
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.)
Pending
Application number
JP9782478A
Other languages
Japanese (ja)
Inventor
Yasutaro Kato
Akihisa Takezoe
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.)
DKK Co Ltd
Original Assignee
Denki Kogyo Co 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
Application filed by Denki Kogyo Co Ltd filed Critical Denki Kogyo Co Ltd
Priority to JP9782478A priority Critical patent/JPS5525237A/en
Publication of JPS5525237A publication Critical patent/JPS5525237A/en
Pending 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
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole

Landscapes

  • Details Of Aerials (AREA)

Abstract

PURPOSE:To obtain an antenna which features a low cast-up angle as well as high efficiency even with a small altitude by folding once the antenna lowered down vertically and then folding down again. CONSTITUTION:Lead wire W is lowered down from top point A and folded upward at middle point C to be then folded again at point D down onto the ground for feeding. When this wire is excited by transmitter S, the current which sets the nodes at points A and E rides on the wire. In this case, the current featuring the same amplitude and opposite phase flows the distance between points B and C and the distance between points C and D. Thus the current distribution of this antenna becomes identical to the antenna featuring so-called cast-up angles of 0.53-0.63lambda. In case the area between A and B points and the area between C, D and E points are set to about 0.08lambda and 0.25lambda respectively, the best value can be obtained to reduce the cast-up angle.
JP9782478A 1978-08-11 1978-08-11 Medium wave radio broadcasting antenna Pending JPS5525237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9782478A JPS5525237A (en) 1978-08-11 1978-08-11 Medium wave radio broadcasting antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9782478A JPS5525237A (en) 1978-08-11 1978-08-11 Medium wave radio broadcasting antenna

Publications (1)

Publication Number Publication Date
JPS5525237A true JPS5525237A (en) 1980-02-22

Family

ID=14202468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9782478A Pending JPS5525237A (en) 1978-08-11 1978-08-11 Medium wave radio broadcasting antenna

Country Status (1)

Country Link
JP (1) JPS5525237A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179280A (en) * 1984-12-07 1986-08-11 メドトロニツク・インコ−ポレ−テツド Hydrophilic biomedical pressure sensitive adhesive composition
JPS6353465A (en) * 1986-08-25 1988-03-07 Konica Corp Analyzing element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179280A (en) * 1984-12-07 1986-08-11 メドトロニツク・インコ−ポレ−テツド Hydrophilic biomedical pressure sensitive adhesive composition
JPH0580514B2 (en) * 1984-12-07 1993-11-09 Medtronic Inc
JPS6353465A (en) * 1986-08-25 1988-03-07 Konica Corp Analyzing element

Similar Documents

Publication Publication Date Title
JPS54160150A (en) Frequency selecting circuit
JPS5525237A (en) Medium wave radio broadcasting antenna
JPS5329046A (en) Wide band circular polarized wave generator
JPS5252549A (en) Antenna unit
JPS57186803A (en) Medium wave radio broadcasting antenna
JPS5730402A (en) Antenna for medium wave broadcast
JPS5731203A (en) Wide band antenna
JPS5628502A (en) Unidirectional antenna unit
SU68097A1 (en) Grounded antenna mast
GB1512389A (en) Whole wave vertical antenna
JPS57111108A (en) Medium wave broadcasting tower antenna used in common by two waves
JPS538848A (en) High frequency heater
JPS5375843A (en) Antenna
JPS52123155A (en) Voltage control oscillation circuit
JPS5544240A (en) Ultra broadband high gain antenna of unbalanced type
JPS55128902A (en) Unbalanced ultra-wide band antenna
JPS5566103A (en) Multi-wave sharing system for fading prevention medium wave antenna
Rao et al. Comments on “Design and Development of a Superturnstile Antenna for Low Power TV Transmitter”(JITE, Feb. 1973)
GB451201A (en) Improvements in or relating to antenna structures
FREY et al. Phase perturbation measurements through a heated ionosphere[Final Report]
JPS5563141A (en) Radio communication apparatus
JPS5437663A (en) Antenna
JPS52115145A (en) Band-pass erasing filter
Chaplin et al. Synthesis of an antenna with reactive loads by means of the least squares method
JPS5210049A (en) Spiral antenna