|
|
|
|
|
Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an Special page devoted to
Multirange Trap Antennas
|
|
Multirange Trap Antennas: by Igor Grigorov, RK3ZK Recently multirange trap antennas are widespread among radioamateurs. As matter of fact, the type of antennas was invented in the USA by H. K. Morgan, US patent # 2229856, 1938 (by reference [1]). Probably the first article about a trap antenna was published in reference [2] at 1940. So, what is the antenna and how is it work? Let's see it on the example of a ham vertical trap antenna in order to simplify a problem. Figure 1 shows us a schematic of such antenna.
PDF file, 520 KB (ANTENTOP-02-2004)
|
|
|
|
|
|
|
|
|
|
Just for Fun:
This Free map is showing the 100 most recent visitors from website www.antentop.org. However, the visits will be shown only if you are clicked to the link. IP2Location.com found your location (and location of previously clicked visitors) and shows it on the Earth Map. The thing is added just for fun. |
|
Last Updated: December 6, 2007 22:17 |