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Many antennas function because of common mode currents, rather than working in spite of them. Two popular examples are CFA and EH antennas. Another recent example, appearing in Antennex's compact antenna articles, is a thick stub "vertical" with no counterpoise.

Phased vertical antenna system in french

A vertical dipole for the 40 meters band made by using some buddipole parts and adding capacities on both ends by HB9MTN

By Guy, de ON6MU, At VHF, both the 1/4-wavelength monopole and the 5/8-wavelength monopole antennas are widely used.

Bobtails are vertical arrays that look like the letter "E" turned 90° clockwise onto its tails. They have 3 quarter wave vertical elements and are one wavelength long. The Half Square is a shortened Bobtail- it has 2 quarter wave vertical elements and is a half wave long.

There is considerable confusion as to what exactly a multiband vertical antenna is. The confusion concerns the method of feed, how much mismatch one can expect, how many radials are required, how the particular antenna is built for multiband use, plus some other points.

NEC4WIN is a 32 bits commercial antenna simulation software based on MININEC3 developed by the Naval Ocean Systems Center in the 70s and 80s. It runs under Windows and can be used to simulate, analyze and optimize wire antennas, beams, verticals, etc. NEC4WIN has limitations. They are the same as Mininec3 on which the engine is based.

A Half wave antenna has a high impedance feed point. This can be matched using a 1/4 wave stub matching section and converts the 40m vertical into an L-shaped 20m J-Pole antenna. The 300 ohm feeder used for this purpose must be kept away from the ground.

A vertical portable antenna system by W0SJS that will work on 40, 30, 20, 17 and 15 meters

A project of a semi vertical trap antenna that can be tuned for 7 bands

A project of a vertical and wires that generate a multiband antenna for 28 14 10 and 7 Mhz in french

A club project experiment about a vertical Moxon antenna for 20 meter band

A mobile vertical antenna for 40 meters band by W4NFR

The array consists of 7 vertical antennas arranged as 6 verticals in a hexagon shape plus 1 additional vertical in the center of the hexagon

An easily transportable vertical antenna for 20 meters collapsible to 4 feet

A shortened 20m vertical antenna design made with 4Nec2

Amateur Radio Station owned by Matt Strelow. The station is designed for competition in the multi-operator multi-transmitter category of high-frequency DX contests. Running with 7 towers 6 rotators, 8 beverage listening antennas, and 4 spotting verticals

One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below.

A vertical dipole for 7MHz and 21MHz by OH3GGQ

A vertical antenna that can cover HF bands using an UN UN and a fishing pole, usage of tuner is requested.

KE4UYP project for a top fed 1/4 wave lenght linear loaded vertical for 80m or 160m

Near Vertical Incidence Skywave (NVIS) and the 40 meter Novice Sub-band.

Choosing a vertical antenna. Buying guide to amateur radio HF vertical antennas by Bencher inc

This article describes a project of asymmetrical hatted vertical dipole, a portable antenna that can be used for field day operations, sota, campings or even for fixed installations. This is a freestanding 20-10m antenna that is really easy to build, easy to tune and relatively easy to carry.

An interesting article by K3DAV comparing the COMET CHA250B to other HF multiband vertical antennas

An inverted Vee antenna calculator that consider also minimun vertical height and horizontal spread by M0UKD

DF9CY experience on a vertical antenna for 40 meter band

5/8 vertical groundplane antenna for six meters band

YF1AR multiband vertical antenna, based on orginal concept by VE7BS. Consist of 6 vertical elements and 6 base radials with a single 50 Ohm feed line.

Understanding Gain differences, j-pole and end-feed vertical antennas.

This is a design for a stealthy HF multi-band vertical wire antenna using a tree as a supportby G7AQK

Shortened vertical antenna for 40 meters band an homebrew project

A homemade VHF/UHF vertical antenna made essentially with RG58 coax cable, with a 9 turns choke balun to prevent the shield acting as a RF Radiator.

The 5/8 vertical it quite popular and matching solutions can vary

A vertical monoband antenna design that can work from 6 meters to 70 cm by F5ZV in French

An easy to make, cheap, no trap, multiband wire vertical antenna by PA1M

A simple VHF vertical aerial for the home station

An HF multiband trapped antenna in french

Six metre enthusiasts might like to experiment with this ‘Zig-Zag’ four-element vertical for lofts. Brian Williams, GW0GHF

A ATU for beam and vertical antennas by PA0FRI

A Slinky-based doublet or loaded vertical QRP antenna tested for 40 meters band

This article explores the performance of an unloaded elevated vertical, base matching and feed line as a multi-band HF antenna system.

An 80 meter band vertical loop antenna setup

This article explores the performance of an unloaded vertical as a multi-band HF antenna.

A vertical antenna for 40 meters band by PA5MW

An home made vertical dipole antenna made with simple material. The antenna has a total length of aproximately 16 feet. In this article appeared on June QST 2019, the author explain how he reached the optimal confirugation changing and adjusting the lower part of the antenna, trimming and spacing correctly the copper wire. PDF File to downloas

4 Square Vertical Array website dedicated to vertical arrays antenna installations worldwide by G4ATA

A remotely tuned 80m to 10m wire vertical antenna

A multiband vertical dipole antenna by ON4BAI

An off centre fed dipole, with 10 feet of vertical radiator. It needs no tuner on 40m, 20m and 10m by M0UKD