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An old post by John Doty about effects of noise in longwire antenna.

This 4m Slim Jim Antenna is cheap and easy to build yet it greatly out performs the more usual dipole due to its low angle of radiation. An SWR of 1:1 is obtainable across the 4m ham radio FM band with a simple adjustment.

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 homebrew remote antenna switch by vk2zrm

How to build a super AM antenna, These plans have been used by many people, with good results.

Notes on Axial-Mode Helical Antennas in Amateur Service. Helix Basics, Modeling Issues, and Short Helical Antennas Over Perfect Ground

Double Bazooka Antenna, a simple coax based and broad band antenna you can easily build

Backpacking, boating or mountaintopping ? Invest your time and pack this novel directional gain antenna on your next expedition

Theory of horizontal loop antennas, as discovered by G2PL using a lowered quad antenna and theorized by ZS6AKA

James Miller G3RUH article on amsat site

The Moxon Beam, introduced by L. Moxon (G6XN), is a compact 2-element Yagi featuring a radiator and reflector with reduced dimensions, approximately 75% the size of a full-size beam. This design utilizes bent element ends for capacitive loading, which is superior to inductive loading with coils, resulting in greater bandwidth and lower losses. DK7ZB details that while the gain is slightly lower (0.5-0.7 dB) than a full-size beam, the _Moxon_ offers an exceptional front-to-back (F/B) ratio of 30 dB or more on its design frequency, surpassing other 2-element beams. The article provides specific dimensions for building wire _Moxon_ antennas for bands from 30m down to 10m, and also mentions a 2-m-Moxon. Construction guidance includes using fishing rods for lightweight spreaders and an aluminum tubing spider for support. The resource highlights the utility of _Moxgen_ by AC6LA, a freeware program that simplifies Moxon beam design and generates EZNEC output files for further analysis and tapering modifications. DK7ZB emphasizes that the design frequency should be set at approximately one-third from the band's beginning to optimize SWR performance, as SWR tends to rise more significantly below the design frequency. The bandwidth for SWR < 1.5 is noted as sufficient for ranges like 28.0-28.7 MHz and 21.0-21.45 MHz when constructed with aluminum tubes, though wire beams exhibit a narrower bandwidth.

The resource details the historical development of the Morgain antenna, tracing its origins to Virginia in the 1960s and its subsequent global adoption among radio amateurs. It describes the Morgain as a dual-band wire antenna known for its reduced footprint and modest gain characteristics. The content includes discussions on various homebrew projects and design variations available online, providing context for its continued relevance in amateur radio. The article presents a historical overview rather than specific construction plans, focusing on the antenna's evolution and general design principles. It highlights the antenna's enduring appeal due to its performance attributes and compact size, making it suitable for various operating environments.

Homebrew G5RV a simple multiband antenna. This article shows detailed pictures of a G5RV home made antenna, including antenna size and dimensions by 9M2ZAK

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

This 40 meter Inverted V antenna was tested and tuned at a height of 35 feet and proved excellent results. The ends of the antenna are about 11 feet above the ground. Article and video available

A helpful guide to building your own beverage-type low noise receiving antenna for broadband use. Easy, do-it-yourself suggestions to optimize directional performance, even if you lack a farm to put it on.

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.

A PDF presentation of a home made moxon antenna for 50 MHz 70 MHz and 144 Mhz. The project is mainly out of surplus plastic Plumbing pipes and clips etc, and also details of how the dimensions were calculated.

Broadband HF Vertical antenna which does not require a tuner, and which is capable of providing reasonable performance on all bands from 7MHz to 28MHz

Ham radio antennas and electronics, specialized in 1/2 wave dipole, OCF dipole, windom, full wave loop, end fed, inverted L, portable end fed antenna, long wire, SWL antenna, fan dipole, multiband dipole, G5RV and military antennas.

Group with thousand of memebers focused on NVIS antenna

Notes and information about G5RV antenna, analysis of short feed lines and relation with SWR

Collection of different techniques to homebrew PVC yagi antennas, including elements assembling, baluns and chokes, radiator box tips and tricks by dk7zb

Long Range Wi Fi Antenna by AB9IL

5/8 vertical groundplane antenna for six meters band

Comparison chart for low-band receiving antennas

Let's explore the cubical quad antenna, or quad, and see what it really is and how it really works by w8ji

A Lindenblad Antenna for 145 MHz and 435 MHz with an integrated 50 MHz J-pole

Building an omnidirectionnal antenna for the 23 cm band, 1240 - 1270 Mhz

Some antenna manufacturers place baluns at the incorrect location in LPDA arrays. If we consider what the balun does we can see how the mistake occurs.

Some rules of thumb for beginners, with a QRP approach, by James R. Duffey KK6MC/5

An attic antenna for 40 and 80 meters band by NS1W

DF9CY experience on a vertical antenna for 40 meter band

67 ft antenna for portable operation by VE3CLQ

Are you having RF problems in the shack since you put up your HF vertical antenna? This is a common problem with an easy solution.

A shortened 160 meters band antenna for hams who do not have 260 ft of space, based on a open-wire-fed short dipoole

A UHF antenna for satellite reception. Anntenna mast is in wood, made with two aluminium rods

Pipe your signals to 146 and 445 MHz with one antenna!

Shortened vertical antenna for 40 meters band an homebrew project

Optimising a typical G5RV antenna by VK1OD

5 elements Yagi antenna with an 8.7 db gain

A well documented article about construction and analysis of a horizontally polarized halo antenna for 6 meters band by Dr. Carol F. Milazzo, KP4MD

You can make your own 2-meter "rubber duckies" that will likely perform much better than many commercial units.

If you have space constraint at your QTH for a HF antenna, you can try contructing this HF magnetic loop antenna for 40-20 meters bands

Why twinlead isn't necessarily a low loss feed line.

Adventures in amplified GPS antenna construction; an experiment

A bowtie antenna is a type of antenna that reputedly provides higher gain at lower radiation angles than a center-fed dipole antenna at heights considerably less than 1/2 wavelength above ground.

6m (50Mhz) Long wire antenna There is another form of long wire antenna which provides uni-directional coverage and is easy to build. Description by Arnie Coro CO2KK

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

Cheap UHF antenna plans for 2 meters and up including 421 1296 and 902 Mhz