Small Antennas for the 160 meter Band

A New Book from Grant Bingeman, KM5KG

112 pages 8.5 by 11 inches

This book presents 30 practical wire antenna designs that fit inside a 40 by 40 by 30 foot tall space, including the ground system. This report is specially written for the ham radio operator who lives on a typical quarter acre lot and has to maintain a practical budget.

E field radiation efficiencies of 75 percent are possible over a very limited ground system of 18 buried radial wires only 20 feet long.

Guy-wire insulator voltage stress is carefully followed throughout the book, since all voltages and currents within an electrically short antenna are emphasized by the naturally low radiation resistance and high input reactance. Hazardous E field limits are also carefully evaluated.

The book explains in detail how NEC modeling errors can be avoided, which is a very important topic when using method of moment design techniques for electrically small antennas.

A complete set of over 200 modeling files in EZNEC format is separately available. Available from the ARRL in January 2012.