Please ensure that JavaScript is enabled. Your web browser appears to be out of date. Soon you will not be able to create a secure connection to our web site using TLS 1. JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. In this one book, you will find all of the information you need to design complete antenna systems—from planning, to design and construction. The Antenna Book includes treatments for nearly any radio band and operating application: low-band, HF, VHF, UHF and microwave; fixed station, portable, mobile, maritime, satellite and more!
New and Improved! This twenty-second edition includes a complete reorganization, new content, and exciting new antenna projects:. The CD-ROM includes all of the fully searchable text and illustrations in the printed book, plus utility programs and supplemental content from expert contributors. Antenna donkeytime. Select a Collection. Save to Collection. Tip Designer. Share this thing. Send to Thingiverse user. Remixed from: Select a Collection.
Print Settings. Figure The missing figure can be downloaded as a graphic file here. The feed point attachment hardware is more conveniently assembled with the screw heads on the bottom of the driven element instead of on the top as shown. The coaxial feed line is attached to the halves of the driven element and no connection is made to the boom or other hardware.
The Antenna Book equation assumes that P is the net input power, which on a directional wattmeter equals Pfwd - Prefl, and that none of the reflected power is absorbed by the source such as a transmitter's output stage.
In such a case, power is continually "pumped" into the line. If the termination is infinite, such as for a short or open, power is only dissipated by line loss and voltage can become very high. If reflected power is absorbed by the source, no "build up" of power occurs. Secure Site Login Forgot Password? ZIP - see Chapter 1 above. This rope-suspended antenna was designed by VE1FA for his team's pursuit of the Brendan Quest for the first two-way transatlantic QSO on 2 meters using only natural propagation.
So far, they've been heard "across the pond" but haven't completed the necessary QSO. This 21st edition has been extensively revised to include information you can use to build highly optimized or specialized antennas.
The book includes new content on Near Vertical Incidence Skywave NVIS techniques, phased arrays, S-parameters as used in modern vector network analyzers VNA , Beverage receiving antennas, mobile screwdriver antennas, ionospheric area-coverage maps, and much
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