23cm 1296MHz Antenna List
 

This is a list of any type of 23cm 1296MHz antenna

To refine your search click here

Showing matches 1 to 2 of 2

A Double Quad Antenna for 1296 MHz

This antenna is a medium gain directional antenna for mobile (portable) and base station use. I have built it many years ago for mobile operation to check out how good the signal of the ATV Relais DB0SCS is received in the villages around Schwabach (the QTH of the Relais). I found a similar type for 432 MHz in the literature and decided to calculate the dimensions for 1296 MHz. For the 432 MHz antenna a gain of more then 10dBd was mentioned. This seems reasonable for the size of the antenna. I was always satisfied with the antenna and a direct comparison to other antennas of a know gain showed that it really has to a have a gain of about 10dB over a dipole.


23, 13, WLAN Helix antenna design

How to design and build helix antennas is described here. Also some of the theory behind it. There are tree radiation modes of helical antennas. The most used mode is the axial mode, it provides maximum radiation along the helix axis. For axial mode, the circumference of one helix-turn is in the order of one wavelength. In normal mode, radiation goes broadside to the helix axis. It occurs when helix diameter is small in respect to the wavelength. If wavelength is small compared to the helix diameter, in conical mode, radiation will go into multiple lobes.


 

Fresh search

Bookmark this page
Bookmark to: Blogmarks Bookmark to: Del.icio.us Bookmark to: Digg Bookmark to: Facebook Bookmark to: Google Bookmark to: StumbleUpon Bookmark to: Windows Live Bookmark to: Yahoo

The only way to entertain some folks is to listen to them.

Get Cashback
TopCashBack really is the closest you'll get to Free Money. Read how.


© Copyright www.DigitalHam.co.uk 2005 - 2012