Posts Tagged ‘Antenna’

Cisco 2.2dbi PCB OMNI Antenna

Tuesday, April 1st, 2008

Saved long long ago from an old Russian forum: wifi-connect.ru

The site is running now again, but without a forum, and no new info is available.

Cisco 2.2dbi PCB OMNI Antenna

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Bigger Version of Coax Omni Antenna

Tuesday, April 1st, 2008

This is just a bigger version of previous coax antenna.

http://www.zero13wireless.net/foro/showthread.php?t=3964

http://www.digdice.com/2008/03/30/small-coax-omni-antenna-for-wifi/

There is no info available about gain or anything els.

Used coax is RG-213

Coax Omni Antenna

Coax Omni Antenna

On site also suggest some sort of franklin dipole :

Coax Omni Antenna

I thing that this design will be fun to test.

May be will work ? What you thing ?

Quasi Log Periodic End Fire Array (QLP) Feed Antenna

Saturday, February 23rd, 2008

cal amp antenna

Quasi Log Periodic End Fire Array (QLP) Feed Antenna

Specification :

http://www.calamp.com/pro_mmds_130093-130120.html

Page 5 lan23.ru
http://www.lan23.ru/forum/showthread.php?t=5&page=5

qlp feed

http://www.wireless-homebrew.com/wireless/page04.html

cal amp close

russians again

http://www.nag.ru/2003/0110/sirco-text.html

some pictures :

qlp antenna dimensionsqlp antenna dimensions

http://hft.uni-duisburg-essen.de/INICA2007/2003/archive/inica_2003/P06_Ibrahim.PDF

One of these build on lan23.ru

Quasi Log Periodic End Fire Array (QLP) Feed Antennaqlp antenna dimensionsqlp antenna dimensions

Here dimensions of my one :

http://www.digdice.com/2008/02/07/qlp-antenna/

How to make our own reflector :

http://www.digdice.com/2007/08/31/diy-hi-gain-antenna-on-cheap/

10GHz Slotted Waveguide with Wings

Saturday, February 16th, 2008

http://www.essexrepeatergroup.org.uk/gb3cms.htm

Horizontally Polarised Omnidirectional Slotted Waveguide
10-slot winged K5SXK/WA5VJB based design

Also interesting radome is build.

Here are the pictures.

10GHz Slotted Waveguide with Wings 10GHz Slotted Waveguide with Wings 10GHz Slotted Waveguide with Wings

Now using wings we getting bigger ground plane - ro this is writen in big books - i must try this some time.

I lake the radome too it is simple to make.

And as final we get quite strange shape for this antenna :) , I like this too.