Latest News

Feb 2006

KVK Antenna Systems will have a major display of antennas & books @Australia's premier hamfest at Wyong. 4KVK will also be there giving a presentation on his books. Click here for more info.

24 Nov 2005

4KVK attends BARC meeting for presentation on his books

12 Nov 2005

KVK Antenna Systems display @Gold Coast Radio & Electronics Fair. More

16 Sep 2005

4KVK attends North Queenslands TARC to give presentations on his books and antennas. More!

May 2005

3 new books from VK4KVK are announced Click here for more info.

 

 

 

www.kvkantennas.com.au

 

Vertical Antennas

 

We build two major styles of vertical antenna.  One is more or less a vertical dipole, derived from work VK4KVK did with the Vipole, the other is a Marconi-style loaded quarter-wave with support for multiple frequencies.  What is significant about these antennas is that they are designed to support multiple frequencies and fit the restricted-space scenario.  As always, they are geared up to provide effective levels of performance without compromising efficiency too much.  Our verticals are unique - we avoid using lossy LC-traps, use optimally designed  inductive-loading to secure electrical quarter-wave radiators, and everything is run through extensive computer models.
 

 

Vertical-LR-Dipole

This antenna breaks away from the conventional notion that a dipole must be a collinear device. We indeed bend the antenna at right angles at the feed point.  Bending antenna radiating elements is not an uncommon means of managing space. We use this technique extentively with man of our antennas - most noticably, the NuBeam.  By bending the antenna in this fashion, we effectively reduce its space in one dimension by half.  We offset the element into one of the other two dimensions available in 3D.   For someone looking for operation on the lower bands with the smallest requirement for space, then this is the verical to consider. Imagine - being able to work 7, 10, 14 and 18Mhz with an antenna that is just  5.5m wide and  6m tall.

 

Features

  • Easy to install
  • Low cost
  • multi-band vertical
  • does not need a ground plane
  • fits restricted space scenarios
  • low profile
  • all elements are electircally loaded
  • all elements are radiators
     

 

TLV vertical 

This antenna secures multiband operation by modifying the vertical radiator to support multiple electrically loaded quarter wave elements. However, it remains a quarter-wave Marconi vertical in need of a ground plane.  The first half of the radiator element is common to all frequencies.  Then, the second half of the radiator is a combination of electrically loaded elements for each frequency of operation.  For someone looking for  multi-band operation, while still retaining as much efficiency as possible, this is the vertical antenna to consider.


Features

  • multi-band
  • still employs a ground plane
  • maximises efficiency on the lower bands for a restricted space antenna

 Vipole, NuBeam, QuadFoldedDipole, Size does matter!  and  More antenna, less space.   are trademarks or registered trademarks of KVK Antenna Systems. 

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