Helical

13 cm Helix Antenna - Here is the design of a 2.4 GHz antenna that is ideal for amateur satellite communications. This antenna is easy to assemble because the design itself tolerates inaccuracies in the construction without really affecting performance.

2.4Ghz Helix antenna - Concise instructions on making a broadband helical antenna for 2.4GHz use, such as: 802.11b wireless networking 2.4GHz video links.

70 cm ATV Antennas - Home made antennas, ATV stuff, 70 cm antennas, helix antennas and a lot of intresting pictures to view

Helix antenna for 2 meters - Plan of a helix antenna for 2 meter satellite use by VK5ZAI

Design and build helix antennas - An on-line javascript calculator and quite a few pictures to show how to make a helix antenna.

Quadrafilar Helix Antenna - Quadrafilar Helix antenna for 137 Mhz

A quadrifilar helix weather satellite receiving antenna - This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable.

Mobile Helix Antennas for HF - Normal mode helix antennas for HF mobile. Photos andn plan for a 20 meters mobile helix antenna by N2MH

Helix Antenna - Design helix antennas with this DOS program by OH0NC

A 16 Turn S-Band Helix - This design represents the smallest practical antenna for Oscar-13 mode-S. Perfect beacon reception at all times is possible, and acceptable SSB even at 43,000 km range.

Helical HF Portable Antenna  ^new - An easily transportable vertical antenna for 20 meters collapsible to 4 feet

13 cm Helix Antenna  ^pop - Here is the design of a 2.4 GHz antenna that is ideal for amateur satellite communications. This antenna is easy to assemble because the design itself tolerates inaccuracies in the construction without really affecting performance.

2.4Ghz Helix antenna  ^pop - Concise instructions on making a broadband helical antenna for 2.4GHz use, such as: 802.11b wireless networking 2.4GHz video links.

70 cm ATV Antennas  ^{updated  pop} - Home made antennas, ATV stuff, 70 cm antennas, helix antennas and a lot of intresting pictures to view

Helix antenna for 2 meters  ^pop - Plan of a helix antenna for 2 meter satellite use by VK5ZAI

160m Helical Project - An helical antenna for 160 meters band by G0THS

2.4 Ghz double quad antenna - An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.

70 cm helix antenna - An Helix antenna for 70 cm band and satellite reception

80 m helical antenna - Prototype of a 80 meters helical antenna on a 6 meters squid pole by VK2TTL

900 MHz Helical Antenna - Photos and description of a homebrewed 900 Mhz antenna

A 16 Turn S-Band Helix - This design represents the smallest practical antenna for Oscar-13 mode-S. Perfect beacon reception at all times is possible, and acceptable SSB even at 43,000 km range.

A GPS Helix Antenna - Construction Details For A GPS Helix Antenna

A quadrifilar helix weather satellite receiving antenna - This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable.

Axial-Mode Helical Antennas - Turn Helical Antennas Over Perfect Ground and Modeling Helices in NEC-2

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

Coaxial-feed axiam mode helical antenna - Coaxial-feed axial mode hemispherical antenna is studied experimentally and theoretically

Design and build helix antennas - An on-line javascript calculator and quite a few pictures to show how to make a helix antenna.

Gain of Helix - This article summarizes probably the most extensive numerical modelling calculations on the helical antenna ever performed.

Helical antenna - Wikipedia

Helical Antenna Calculator - This is my simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.

Helical Antenna for WiFi - Improved Helical Antenna Design for 802.11b WLAN by PA0HOO

Helical Antennas - The Helical antenna description, a simple way of obtaining high-gain and a broad band of frequency characteristics

Helical Antennas by F5ZV - Article on Helical Antennas in french

Helical Feed Antennas - Helical antennas have long been popular in applications from VHF to microwaves requiring circular polarization, since they have the unique property of naturally providing circularly polarized radiation. Paul Wade W1GHZ

Helical/helix antenna 2.4 GHz HOWTO - Helical/helix antenna cookbook recipe for 2.4 GHz wavelans and/or WiFi applications

Helix Antenna - Design helix antennas with this DOS program by OH0NC

Helix Antenna - Helix antenna design and construction details

Helix Antenna Calculator - Online helix antenna designer, calculate size of helix antennas online

Helix antenna for 435MHz - homebrew an helix antenna for 435 MHz by VE2ZAZ

Helix Antenna for 137 MHz - A Quadrifilar Helix Antenna for 137 MHz By George Goodroe, KF4CPJ

Helix antenna for 2 meter - Homebrew a helix antenna VK5ZAI style for satellite use

Helix Calc - Helix antenna calculator, to design and make helix antenna plans

HF Helical Whip Calculator - Calculating HF helical whip antenna for mobile or portable operation

Home made GPS antennas - A Home made Helical antenna for a GPS

LNA & Quadrifilar helix for GPS - From a S53MV, Matjaz Vidmar, project

Mobile Helix Antennas for HF - Normal mode helix antennas for HF mobile. Photos andn plan for a 20 meters mobile helix antenna by N2MH

Multi-pitch Helical Antenna - Creating multiple, overlapping resonance at 700-800 MHz band and leaving the VHF part of the response as in ordinary, narrow band helical antenna.

Normal Mode Helix Antennas for HF - Normal Mode Helix Antennas for HF Mobile

Online helix antenna calculator - PHP Helical antenna calculator, need SVG viewer

QFH antenna for weather satellite band - This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable

Quadrafilar Helix Antenna - Quadrafilar Helix antenna for 137 Mhz

Quadrafilar Helix antenna for 436 Mhz - This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB.

Quadrifilar helicoidal antenna - Design your own quadrifilar helix, the site even generates a drilling pattern in a PDF file. Several different construction methods are shown.

Quadrifilar Helix Antenna - Quadrifilar Helix Antenna for the 2m band. Using cooper pipe and PVC pipes by KI6YRD

Quadrifilar Helix Antennas - The purpose of this page is to provide information and links about Quadrifilar Helix Antennas. It's the best antenna to use for APT satellite reception

The Gain of the Axial-Mode Helix Antenna - by Dr. D.T. Emerson, National Radio Astronomy Observatory (NRAO++). Antenna Compendium Volume 4, pp 64-68, 1995, published by the ARRL.

The Helical Windom Antenna - A marriage of the windom and slinky antennas, experimental home brew antenna by NC4TC

The normal-mode helix antenna  ^updated - A helix will work in the normal mode when the diameter and pitch of the helix is less than 0.1 Lambda

The Quadix Antenna - The Quadix is a circularly polarized parasitic array, a hybrid between a helix and a quad or loop yagi

The Quadrifilar Helix Antenna - Article about quadrifilar helix antennas, electrical and physical characteristics, difference between quadrifilar and conventional helix