WO2000042676A1 - Coupling with coaxial overlap - Google Patents

Coupling with coaxial overlap Download PDF

Info

Publication number
WO2000042676A1
WO2000042676A1 PCT/NZ1999/000221 NZ9900221W WO0042676A1 WO 2000042676 A1 WO2000042676 A1 WO 2000042676A1 NZ 9900221 W NZ9900221 W NZ 9900221W WO 0042676 A1 WO0042676 A1 WO 0042676A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
mount
supporting means
coaxial cable
male
Prior art date
Application number
PCT/NZ1999/000221
Other languages
French (fr)
Inventor
Andrew Donald Mcmurray
Charles Desmond Keenleyside
Original Assignee
Pacific Aerials Limited
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 Pacific Aerials Limited filed Critical Pacific Aerials Limited
Priority to AU19003/00A priority Critical patent/AU1900300A/en
Publication of WO2000042676A1 publication Critical patent/WO2000042676A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/088—Quick-releasable antenna elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element

Definitions

  • the invention relates to de-mountable antennas for use in radio communications. Whilst the
  • the problem for the designer is that the mount must provide a
  • Antennas can be vulnerable during construction, maintenance and transport, but removing and refitting a hard wired antenna
  • the antenna can be made from the coaxial cable end at the mount.
  • the antennas and mounts of the present invention have been subjected to rigorous electrical and
  • the antennas and mounts of the present invention have
  • the present invention allows an antenna preferably to be simply screwed onto the connector making a perfect electrical connection without any cable cutting, trimming, crimping or
  • an antenna mount comprising an antenna mount; having a coaxial cable joinable thereto; an antenna having a
  • said antenna having a male/female
  • supporting means is demountably attached to the antenna mount.
  • the antenna supporting means can be demountably attached to the antenna mount by simply screwing them together. - J -
  • the male/female connector on the antenna is rotatable with the antenna supporting
  • the antenna mount is adjustable and can be folded down when not in use.
  • Figure 1 is a general view of the invention showing the antenna mount and antenna;
  • Figure 2 is plan view of the antenna mount
  • Figure 3 is a section through the antenna mount and antenna support.
  • FIG. 1 is shown the antenna 10 and antenna support means 12 attached to an antenna mount
  • the antenna mount further comprises an L-section moulding 2 fixed to the antenna mount 1.
  • a bolt 8 clamps the two L-section mouldings 2 and 6 together and allows the antenna 10 to be raked.
  • the antenna mount 150 comprises a base 102 having screw holes 103 for affixing
  • the antenna mount 150 to a boat structure.
  • the antenna mount 1 has exterior threads 14 and a recess 16 which receives the end
  • a central plug pin 20 is seated within the male half of the
  • the antenna 10 is inserted into an
  • the antenna makes contact with the female half of
  • the socket contains the central jack pin
  • the supporting means 12 has a sleeve 32 with interior threads 34 and a moulded recess 36
  • threaded section 14 close together so do the male and female connectors.
  • the signal is conducted through the coaxial cable 22.
  • the length of thread on the supporting means 12 ensures that the mouth of the supporting means 12 abuts closely with the antenna mount 1 when
  • the plug pin makes full contact with the jack.
  • the antenna support means can be spigot fitted over the antenna mount without the
  • the connector need not rotate with the antenna support means.

Landscapes

  • Support Of Aerials (AREA)

Abstract

The invention comprises a demountable antenna comprising an antenna mount (1) having a coaxial cable (22) joinable thereto; an antenna (10) having a supporting means (12) attachable to said antenna mount (1), said antenna (10) having a male/female connector (30) which mates with a female/male connector (20) on the coaxial cable when the supporting means (12) is demountably attached to the antenna mount.

Description

Coupling with Coaxial Overlap
TECHNICAL FIELD OF THE INVENTION
The invention relates to de-mountable antennas for use in radio communications. Whilst the
present invention will be particularly described with reference to marine antennas it is to be
understood that the invention is not limited to marine antennas.
BACKGROUND ART
The design of antenna couplings and mounts must allow for the safe, reliable support of the
antenna and the transfer of the signal to the coaxial cable which connects the antenna to the
transceiver or other apparatus. The problem for the designer is that the mount must provide a
weatherproof sheath for the signal-conducting parts. If the mount encloses the conducting parts
there is no access to the joint between the antenna and the cable. Antennas can be vulnerable during construction, maintenance and transport, but removing and refitting a hard wired antenna
can only be achieved by removing the plug and pulling out the cable. This is because the antenna is tethered by the coaxial cable. OBJECT
The inventors discovered that by making the coaxial cable end at the mount, the antenna can be
readily removed and/or interchanged for another antenna.
The antennas and mounts of the present invention have been subjected to rigorous electrical and
mechanical testing from tens of thousands of cycles on an "antenna breaker" to complete
submersion in salt water for a fortnight. The antennas and mounts of the present invention have
passed the International Standard for salt mist exposure (I E C 68-2-52).
DISCLOSURE OF INVENTION
The present invention allows an antenna preferably to be simply screwed onto the connector making a perfect electrical connection without any cable cutting, trimming, crimping or
soldering. No tools; no fiddling around; no small parts to lose forever; nothing to short out.
In one broad aspect of the present invention there is provided a de-mountable antenna
comprising an antenna mount; having a coaxial cable joinable thereto; an antenna having a
supporting means attachable to said antenna mount, said antenna having a male/female
connector which mates with the female/male connector on the coaxial cable when the
supporting means is demountably attached to the antenna mount.
Preferably the antenna supporting means can be demountably attached to the antenna mount by simply screwing them together. - J -
Preferably the male/female connector on the antenna is rotatable with the antenna supporting
means.
Preferably the antenna mount is adjustable and can be folded down when not in use.
BRIEF DESCRIPTIN OF DRAWINGS
The present invention will now be described by way of example only with reference to a preferred embodiment, as described in the accompanying drawings in which
Figure 1 is a general view of the invention showing the antenna mount and antenna;
Figure 2 is plan view of the antenna mount;
Figure 3 is a section through the antenna mount and antenna support.
BEST MODE FOR CARRYING OUT THE INVENTION
In Figure 1 is shown the antenna 10 and antenna support means 12 attached to an antenna mount
generally designated 1. which comprises an L-section moulding 6. A coaxial cable 22 is joined
to the antenna mount 1. The antenna mount further comprises an L-section moulding 2 fixed to
a boat structure 4. A bolt 8 clamps the two L-section mouldings 2 and 6 together and allows the antenna 10 to be raked.
In Figure 2 is shown a fold down antenna mount of a further embodiment of the present
invention. The antenna mount 150 comprises a base 102 having screw holes 103 for affixing
the antenna mount 150 to a boat structure. The coaxial cable 22 ending in a plug pin 200, feeds into the antenna mount below a threaded section 1 10. In Figure 3 the antenna mount 1 has exterior threads 14 and a recess 16 which receives the end
of the metal coaxial cable plug 18. A central plug pin 20 is seated within the male half of the
plug to which the coaxial cable 22 is crimped or soldered. The antenna 10 is inserted into an
axial bore 24 of the supporting means 12. The antenna makes contact with the female half of
the metal socket 26 by means of the projecting tang 28. The socket contains the central jack pin
30. The supporting means 12 has a sleeve 32 with interior threads 34 and a moulded recess 36
which receives the body of the jack and ensures rotation when the supporting means 12 is screwed onto the threaded section 14 of antenna mount 1. As the supporting means 12 and
threaded section 14 close together so do the male and female connectors. The signal is conducted through the coaxial cable 22. The length of thread on the supporting means 12 ensures that the mouth of the supporting means 12 abuts closely with the antenna mount 1 when
the plug pin makes full contact with the jack.
Whilst this invention has been described with particular reference to the preferred embodiment
it is to be understood that modifications and variations can be made to the de-mountable antenna
without departing from the spirit of the of the invention as claimed in the attached claims. In
particular the antenna support means can be spigot fitted over the antenna mount without the
requirement of threading. The connector need not rotate with the antenna support means.

Claims

CLAIMS:
1. A de-mountable antenna comprising an antenna mount having a coaxial cable joinable
thereto: an antenna having a supporting means attachable to said antenna mount, said
antenna having a male/female connector which mates with a female/male connector on the
coaxial cable when the supporting means is demountably attached to the antenna mount.
2. A de-mountable antenna as claimed in claim 1 wherein the supporting means is screwed
onto the antenna mount.
3. A de-mountable antenna is claimed as claim 1 wherein the male/female connector on the antenna is rotatable with the antenna supporting means.
4. A de-mountable antenna as claimed in claim 1 wherein the antenna mount can be folded
down when not in use.
5. A de-mountable antenna substantially as herein described with reference to the attached drawings.
PCT/NZ1999/000221 1999-01-11 1999-12-21 Coupling with coaxial overlap WO2000042676A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU19003/00A AU1900300A (en) 1999-01-11 1999-12-21 Coupling with coaxial overlap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ333678 1999-01-11
NZ33367899 1999-01-11

Publications (1)

Publication Number Publication Date
WO2000042676A1 true WO2000042676A1 (en) 2000-07-20

Family

ID=19927097

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ1999/000221 WO2000042676A1 (en) 1999-01-11 1999-12-21 Coupling with coaxial overlap

Country Status (2)

Country Link
AU (1) AU1900300A (en)
WO (1) WO2000042676A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7016487A (en) * 1986-07-04 1988-01-07 R F Industries Pty Ltd Electrical cable termination means
US4882591A (en) * 1988-10-03 1989-11-21 Wilson Antenna Inc. Base loaded antenna
FR2691841A1 (en) * 1992-05-29 1993-12-03 Peugeot Radio aerial for car - has lower element connected to coaxial cable and click fitting internally into hole in car bodywork, with antenna support plugging into it from exterior of vehicle
JPH06181405A (en) * 1991-10-15 1994-06-28 Hisao Ono Support for on-vehicle antenna
JPH1093316A (en) * 1996-09-13 1998-04-10 Nec Corp Simple mount structure of antenna to communication equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7016487A (en) * 1986-07-04 1988-01-07 R F Industries Pty Ltd Electrical cable termination means
US4882591A (en) * 1988-10-03 1989-11-21 Wilson Antenna Inc. Base loaded antenna
JPH06181405A (en) * 1991-10-15 1994-06-28 Hisao Ono Support for on-vehicle antenna
FR2691841A1 (en) * 1992-05-29 1993-12-03 Peugeot Radio aerial for car - has lower element connected to coaxial cable and click fitting internally into hole in car bodywork, with antenna support plugging into it from exterior of vehicle
JPH1093316A (en) * 1996-09-13 1998-04-10 Nec Corp Simple mount structure of antenna to communication equipment

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; Class W02, AN 1994-246525/30 *
DATABASE WPI Derwent World Patents Index; Class W02, AN 1998-278394/25 *

Also Published As

Publication number Publication date
AU1900300A (en) 2000-08-01

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