Describes the construction of a simple dipole antenna suitable for use with a handheld scanner such as the AOR AR8000, and describes some of the benefits of using such an antenna.
http://www.crypticide.com/users/alecm/radio/ar8k-dipole.html
1D and 2D arrays.
http://www.myerseng.com/download.html
Covers these antennas: arrays, horn, lens, parabolic, and slot.
http://www.tpub.com/neets/book11/46.htm
The magnetic loop antenna is a high-Q tuned antenna with a very narrow pass band?typical range is 10-25 KHz. The performance of the magnetic-loop antenna is similar to a ? wave dipole.
http://www.elecraft.com/TechNotes/loop_ant/wd8puoloop.pdf
add external antenna connector to your AM radio which does not have it.
http://www.hard-core-dx.com/nordicdx/antenna/loop/amloop.html
A beginners guide to working SSB Meteor Skeds on 144Mhz
http://bellsouthpwp.net/n/5/n5kda/ham.html
A simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters).
http://dt.prohosting.com/hacks/antenna/petlowany.html
This tunable magnetic loop antenna disassembles into small but rugged pieces and can be tuned from 14 MHz to 30 MHz.
http://dt.prohosting.com/hacks/antenna/magloop.html
designed to be used in conjunction with the standard 4 foot square loop used in MW for long distance reception.
http://www.zen22142.zen.co.uk/Circuits/rf/qmult.html
A transmatch, for use in the short wave amateur radio bands from 3-30 Mhz. It allows a wide variety of antennas to be connected to a low power transmitter.
http://www.solorb.com/elect/hamcirc/qrptune/index.html