Faulkner FM Loop Antenna for Superior FM Reception

Faulkner FM Loop Antenna for Superior FM Reception: Learn how to build classic Faulkner FM Loop Antenna — effective design offering excellent FM radio reception across 87.5–108 MHz. Ideal for DXers and hobbyists.

VHF Collinear J-Pole : The DIY Super J-Pole Antenna

VHF Collinear J-Pole : The DIY Super J-Pole Antenna: Take your VHF/UHF station to the next level with DIY Super J-Pole guide. Learn how to build this collinear antenna for maximum gain and clear long communication

Compact Open Sleeve Dipole Antenna for 40 and 20 Meters

Compact Open Sleeve Dipole Antenna for 40 and 20 Meters: Learn how to build compact dual-band open sleeve dipole antenna for 40 and 20 meters using 450-ohm line. This shortened HF antenna offers solid performance

Double Dipole Antenna for 80–10 Meter Bands

Double Dipole Antenna for 80–10 Meter Bands: Learn how a 31-meter double dipole antenna works for 80–10 meter HF bands. Includes dimensions, feedline setup, tuning tips, and performance notes.

3-Band HF Antenna: A Simple, High-Performance Design

3-Band HF Antenna: A Simple, High-Performance Design: Discover how to build a reliable 3-band hf antenna for 40m, 20m, and 10m. This modification uses an asymmetrical dipole and a toroid balun to deliver better SWR

DIY Moxon Rectangle Beam Antenna for 10m, 15m, and 20m Bands

DIY Moxon Rectangle Beam Antenna for 10m, 15m, and 20m Bands: Master the DIY Moxon Rectangle Beam antenna. Detailed guide on dimensions, design, and calculations for 14MHz, 21MHz, and 28MHz ham radio bands.

Multiband Dipole Antenna for 10–80 Meters

Multiband Dipole Antenna for 10–80 Meters: Multiband dipole antenna covering 10, 11, 15, 20, 40, and 80 meters using loading coils and a matching section. Compact HF antenna requiring external tuner.

40m Vertical Antenna: Compact Base-Loaded Design for Powerful HF Operation

40m Vertical Antenna: Compact Base-Loaded Design for Powerful HF Operation: Build an efficient 40m vertical antenna with a 15µH base loading coil and short radiator. Ideal for compact HF setups and portable amateur stations

DIY 80m Magnetic Loop Antenna: A Compact Solution for Low Bands

For many amateur radio operators, the 80-meter band is a “holy grail” of nighttime DX and local ragchewing. However, a full-size dipole for 80m requires nearly 40 meters of space—a luxury many urban hams don’t have. Enter the 80m Magnetic Loop Antenna (MLA).

Based on the design by Nitin William VU3GAO, this 1.5-meter diameter loop allows you to operate on the 3.5 MHz band with a footprint smaller than a garden table.

DIY 80m Magnetic Loop Antenna: A Compact Solution for Low Bands

RW4HFN Balcony Antenna for the 20-Meter Band

For amateur radio operators working with limited space, especially in urban settings, the RW4HFN balcony antenna offers a clever and compact solution for operating on the 20-meter band. This design is particularly suited for installation on balconies or small terraces, making it ideal for apartment dwellers or those with HOA restrictions.

Living in an apartment or having limited outdoor space doesn’t mean you have to give up on HF operations. This Balcony antenna offers several compelling advantages for the space-challenged ham operator. Its lightweight fiberglass construction makes it easy to deploy and take down, perfect for temporary installations or portable operations. The antenna can be mounted on a balcony, deployed in a park, or set up during field day events with minimal effort.

What makes this design particularly attractive is its simplicity. Unlike more complex antenna systems requiring extensive hardware and permanent mounting solutions, the fishing pole antenna uses readily available materials and can be assembled with basic tools. The wire elements are supported by an inexpensive telescoping fishing pole, which provides the necessary height and structural support without the weight and complexity of traditional antenna supports.

RW4HFN Balcony Antenna for the 20-Meter Band

Low-Loss Feedline on a Budget: Building 450 to 600 Ohm DIY Ladder Line from Common Materials

DIY Ladder Line for the HF Ham A complete technical guide to building, routing, and using open-wire balanced feedline at your station

Ladder line is a type of feedline made of two parallel wires held apart by small spacers at regular intervals. When you look at it from the side it looks exactly like a ladder — hence the name. The spacers keep the wires a fixed distance apart all the way from the antenna down to your radio room.

Unlike coax cable, which has a center conductor buried inside solid plastic and covered by a metal braid, ladder line is open to the air. This is not a flaw. It is actually its biggest strength. Air is one of the best insulators there is, and it does not eat up your signal the way solid plastic does.

The two wires carry equal and opposite signals. Because they are close together and balanced, the fields from each wire mostly cancel each other out. Very little energy radiates from the feedline itself. This means nearly all your transmitter power reaches the antenna, where it belongs.

Low-Loss Feedline on a Budget: Building 450 to 600 Ohm DIY Ladder Line from Common Materials

Simple High-Gain collinear antenna using coaxial cable

Among the many antenna designs available to amateur radio operators, the coaxial collinear antenna stands out for its rare combination of simplicity, low cost, and excellent performance. Built almost entirely from ordinary coaxial cable, this antenna is capable of producing real gain over a standard quarter-wave vertical while maintaining an omnidirectional radiation pattern that is ideal for local and regional VHF and UHF communication.

The antenna shown in the below attached diagram is a classic example of a vertically stacked coaxial collinear design. Variations of this antenna have been built and refined by radio amateurs around the world for decades, and many commercial base-station antennas use the same underlying principle, hidden inside fiberglass radomes. What makes this design especially attractive is that it requires no traps, coils, or complex matching networks. When built carefully, it works “right the first time” and delivers consistent results.

Simple High-Gain collinear antenna using coaxial cable

3 x 5/8 Collinear antenna for 435 MHz UHF Band

For UHF repeater systems operating around 435 MHz, antenna efficiency and gain are critical. Simple vertical antennas often do not provide sufficient performance, especially when wide coverage and reliable signal strength are required. To address this need, a UHF collinear antenna design adapted from the well-known Diamond BC-200 has been developed and documented by Kostadin Evstatiev (LZ1DJ).This 3 x 5/8 Collinea antenna is intended specifically for the 420–440 MHz band and provides high gain without requiring post-installation tuning when constructed accurately.

3 x 5/8 Collinear antenna for 435 MHz UHF Band

Hourglass Loop Antenna : A Stealthy Performer for VHF and UHF

If you’re hunting for a high-performance antenna that doesn’t look like a metallic porcupine, the Hourglass Loop (popularized by K4ERO) is a fantastic weekend project. It is essentially two delta loops stacked and fed in-phase, resulting in a bidirectional pattern with about 5 dB of gain over a standard dipole.

Unlike a typical 1-wavelength loop, the hourglass uses a 2-wavelength wire. The crossing point in the center acts as a phasing section, forcing currents in the top and bottom horizontal segments to be in phase. This creates a narrow vertical radiation pattern that puts your signal exactly where it needs to be: on the horizon.

Hourglass Loop Antenna : A Stealthy Performer for VHF and UHF

DIY 3-Element 433 MHz Yagi Antenna for Amateur Radio

Directional antennas can dramatically improve signal quality in the 433 MHz band. Whether you work with amateur radio, telemetry, LoRa projects, remote sensors, or experimental RF systems, a compact Yagi antenna is often one of the simplest upgrades you can make.

This particular 3-element 433 MHz Yagi Antenna design stands out because it combines good forward gain with straightforward construction. It uses a reflector, a loop-driven element, and a director mounted on a compact boom. The result is a lightweight antenna capable of significantly improving range and reducing unwanted interference.

The design shown above is based on proven dimensions used by radio amateurs and antenna experimenters. Its geometry is optimized specifically for the 70 cm UHF band near 433 MHz.

DIY 3-Element 433 MHz Yagi Antenna for Amateur Radio

The Mini G5RV Antenna : Big Performance in a Small Backyard

Space is the ultimate enemy for many ham radio enthusiasts. If you don’t have the room for a massive 100-foot wire, you don’t have to stay off the air. The Mini G5RV is a clever, scaled-down version of Louis Varney’s classic design that fits into much tighter spots while still covering multiple bands.

The Mini G5RV Antenna : Big Performance in a Small Backyard

Building the Shorty 4020 Antenna for 40M and 20M Operation

Space has always been one of the biggest challenges in amateur radio. Full-size HF dipoles work well, but not everyone has enough room for long wire antennas stretched across a backyard. That’s exactly where the Shorty 4020 antenna becomes interesting.

The Shorty 4020 is a compact dual-band dipole designed for 40 meters and 20 meters. Its biggest advantage is simple: it reduces the physical size normally required for a 40m dipole while still providing respectable HF performance.

For apartment operators, portable activators, and anyone dealing with restricted installation space, this antenna has gained a solid reputation over the years.

Building the Shorty 4020 Antenna for 40M and 20M Operation

DIY 145 MHz Twin Delta Loop Antenna for Ham Radio Operators

The 145 MHz Twin Delta Loop Antenna is one of the most efficient and easy-to-build antennas for the 2-meter amateur radio band. With its excellent gain, wide radiation pattern, and stable SWR, this antenna has become a top choice among VHF enthusiasts and home-brew antenna builders. In this guide, we will explore the design, dimensions, feeding method, and performance characteristics of a well-optimized Twin Delta Loop antenna for 145 MHz.

DIY 145 MHz Twin Delta Loop Antenna for Ham Radio Operators

Double Dipole Antenna for 80–10 Meter Bands

A double dipole antenna remains one of the most practical choices for amateur radio operators who want reliable HF coverage without using a complicated antenna system. The design shown here uses a 31-meter overall length and supports operation across multiple amateur bands from 80 meters through 10 meters.

This antenna is simple, low cost, and effective. It works well for operators who need strong regional coverage on lower bands and reasonable DX performance on higher frequencies.

Double Dipole Antenna for 80–10 Meter Bands

The Ultimate 20m Stealth Antenna: A Window Loop Guide

If you’re stuck in an apartment or a neighborhood with strict HOA rules, getting on the 20-meter band often feels like an uphill battle. You want to make contacts and participate in nets, but you can’t exactly mount a massive beam or a standing vertical on your roof without causing a stir. That’s where the PD7MAA Window Frame stealth Antenna comes in to save your hobby.

The Ultimate 20m Stealth Antenna: A Window Loop Guide: