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A 10-20 meters coverage delta loop antenna. After relocating, DL2HCB designed a multiband loop antenna to cover 10-20m with an open-wire feed for impedance matching and compact installation. Inspired by the mini-X-Q design, a modified 10m delta-loop was built, enhanced with a 1/4 wave shorted stub for 28 MHz using 450-ohm ladder line. The antenna delivers east-west broadside radiation and performs as a closed loop on other bands. Operational tests yielded strong European signals and successful DX contacts, including a 20m QRP QSO with FY/DJ0PJ.

Home made vertical antenna for 80 40 15 10 meters ARRL PDF file taken from QST June 1978

The page provides detailed information on the G5RV antenna, its feeder arrangement, and efficient operation on HF bands from 3.5 to 28 MHz. It includes dimensions for installation in limited spaces, variations for different bands, and impedance matching details.

Homemade 40 through 6 meter HF portable multiband antenna, an aluminium antenna construction article, with plan, drawings and photos

Copper Cactus multiband J-Pole antenna

A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too.

A vertical antenna for 40 and 80 meters band, using a telescoping fiberglass fishing pole.

Pictures of a multiband dipole, build with simple PVC T and standard electrical wire

Simple vertical radiator with matching box. No traps, no tuner required for this multiband antenna

Portable, and shortened with loading coils rotatable dipoles for 6 meters, 20 meters and multibands.

The RockLoop Antenna is a compact multiband portable and indoor antenna suitable for QRP operations on the 10, 14, and 21 MHz bands. The page provides detailed information on the design and usage of this antenna, making it a valuable resource for amateur radio operators looking to improve their setup. The intended audience is amateur radio operators interested in building and using antennas for QRP indoor operations.

A comparison of different multi-band dipole techniques

This is a vertical multiband antenna made up of several aerial elements lambda/4 length, feeded with just a coaxial cable in French.

Build your own multiband W3DZZ antenna resonating on 80 40 20 15 and 10 meters band

Here's an award-winning, easy-to-homebrew, multi-band portable vertical antenna designed by long-time antenna aficionado James Bennett, KA5DVS. He documented the design and construction plans for a portable antenna that can be built with relatively ordinary components

Hexagonal Wire Beams for 40-10m from DL7IO, different mono/multiband designs with building descriptions and model files for EZNEC

A 27 pages pdf file revealing secrets of the cobwebb or cobweb multiband antenna with many pictures and assembling details. A great document that can guide you in making your own cobweb aerial.

A multiband jpole antenna

A new perspective on the analysis and design of this popular antenna element. By Karl-Otto Muller, DG1MFT

M1IOS Wonder Whip antenna - The M1IOS Wonder Whip A 10 dollars QRP Portable Multiband Antenna for HF, VHF and UHF A variation on the Miracle Whip and Wander Wand. This antenna tuning unit will get your SWR really low on telescopic whips, mobile 3/8th antenna and long wires. A remarkable little tuner that really works!

This is a combination center and top loaded multiband antenna by Mark D. Lowell, N1LO PDF File

HF multiband mini delta compact and easy assembling antenna that cover from 20 to 10 meters by GM3VLB

An interesting article about homebrewing antenna traps for multiband antennas by VE3GK

The multi-band trapped dipole is resonant on approx 3.7, 7, 14, 24 7 28.5 Mhz. The overall top length needs to be approximately 32.9 Meters

Even if using a tuner this multiband antenna will let you operate from 160 to 10 meters. If you could only put up one antenna, this would be it. Project by N0KHQ.

This page describes the design and construction materials W8WWV used to build a coaxial cable trap. A coaxial cable trap is a parallel resonant circuit that is usually inserted in an antenna element to enable multiband operation.

This multiband antenna 10-80 meters is a home made project by I1BAY. Has been used for SOTA activations with great results. Traps are done with coax cable turns, dimensions are in the attached schema.

The cobweb antenna it is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10 meters and 20 meters, the antenna is also resonant on 6M and can be modeled even for VHF frequencies.

This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX

This multiband wire antenna it is an off centre fed dipole, with 10 feet of vertical radiator, needs no tuner on 40m, 20m and 10m and works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m.

Multiband Center-Loaded Off-Center-Fed Dipole (CL-OCFD) antenna that work on 80m 40m 30m 20m 15m 10m. The Center-Loaded Off-Center-Fed Dipole (CL-OCFD) antenna, developed by Serge Stroobandt, offers a versatile solution for amateur radio enthusiasts, covering multiple HF bands (80, 40, 30, 20, 15, and 10 meters) without the need for an antenna tuner. This innovative design utilizes a capacitor for resonance on the 80-meter band and a resistor to manage static charges. The CL-OCFD enhances bandwidth and simplifies operation, making it a significant advancement on OCF Dipole design.

Australian dealer, HF linear amplifiers, power supplies, baluns, HF UHF yagis and verticals including multiband HF verticals.

The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .

EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes.

A multiband stealth antenna. Tuner is required. The antenna is made from a $15, 500 ft roll of black #14 insulated stranded wire, about 120 small black wire ties, and maybe 30 or so large black wire ties.

G5RV Formula, a simple multiband antenna, by Rick, KC8AON

Indoor multiband dipole with EZNEC data files for simulation and analysis. Includes details on construction, tuning, SWR plots, and software usage. This page includes two different dipoles, a first version for 20-10 meters and an extended version covering 40-10 meters allowing a full coverage of most used ham radio HF Bands.

This Multiband Cubical Quad antenna a boomless Quad design with glass-fibre arms and a single coax wire connected to a remote antenna switch. This aerial work on 8 bands and has a 60-degree beam width. Despite achieving critical technical requirements, the antenna's three-dimensional structure presents obstacles, such as installation issues on fixed towers and risk of frost damage. The spider framework is built of stainless steel, with a compact 18-inch boom and strong angle iron arms. Tait use a variety of methods to fasten element wires and suggests placing them on the outside of the spreaders for improved insulation. The use of nylon twine or parachute cord between key attachment points allows for adjustable separation between pieces.

Antenna design from ZS6BKW (G0GSF), similar to the G5RV, but it actually resonates on five bands It's only 90 ft long 27.51 m, with a 40 ft 12.2 m downlead

Wire antenna for 10-15-20-40-80 meters band, with many drawings and description in spanish

Review of the W5GI Multiband Mystery Antenna by July 2003 Issue of CQ Amateur Radio

This is the antenna for those who want to get on HF effectively, and haven't too much space or cash to throw around

The H-Pole is a vertical multiband wire antenna for 160-10 meters bands

A small multiband antenna for vacation in french

Homebrewina a multiband windom antenna

Also known as G5RV junior the half size G5RV feature reduced dimension and multiband coverage

A complete documentation with pictures and design of a deltaloop antenna and 1:2.5 balun

A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.

The IK-STIC 2 is a vertical, all band, antenna that is over 25 feet tall yet weighs under 5 pounds. Based on a telescopic pipe or a fiberglass fishing pole, using a tuner it can easily cover the amateur radio HF bands from 40 - 10 Meters

the multiband Notebook Antenna, so called because the entire antenna will fit easily inside a 1" thick 3-ring binder