antenas

Analysis of HF Monopoles - Analysis of several monopole antennas, the differences between a perfect and an imperfect ground and effects using a ground plane made of radials or counterpoises.

The Hudson antenna - A vertical antenna for 80 and 40 meters project with lots of assembling pictures and plan by LU9DPD in spanish

4 element yagi for 6 meters - Project plan for a 4 element yagi beam for 50 Mhz in spanish

LU9DPD Daniel - Homebrew, antenas, balunes, expediciones, circuitos, electrónica, torres, fotos y relatos, todo referente a radioafición, radioaficionados y radioamateur

Inverted Vee calculator - Online calculator for dipole and inverted vee antennas

Horizontal dipoles - This article describes the characteristics of an horizontal dipole and shows the results of several simulations made with MMANA-GAL, covering models for the 20 m, 40 m and 80 m bands.

Two wire broadband HF dipole - This article describes the design and simulation of a two wire broadband dipole antenna for the HF band, using the software 4Nec2. The antenna is designed to operate in the full range 3-30 MHz

Magloop antennas - Article about basic principles of magnetic loop antennas, in portuguese

LU9DPD Windom dipole - A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.

Rhombic Antennas - Description and simulation of two types of rhombic antennas, using the software 4Nec2: the simple bi-directional and the terminated directional rhombic antenna

Rhombic antennas - Description and simulation of two types of rhombic antennas, using the software 4Nec2

VHF-UHF Portable Yagi-Uda - VHF-UHF portable Yagi-Uda antenna design and construction notes by XE1MEX

Sloping Vee 470 - Article describes the design and simulation of a multiband Sloping Vee antenna for the HF band, using the software MMANA-GAL. Design with 470 ohms resistive loads. The antenna requires a 4:1 balun.

Antennas and transmission lines - A very exaustive article on antennas and transmission lines. Covers many aspects of antennas and feed lines, in spanish

Marconi Antenna - This article describes the characteristics of the Marconi antenna and shows the results of several simulations made with MMANA-GA

Build Windom Antennas - This article by EA4FSI explain how to plan and build your own windom antenna

Codan C463 multiband antenna - This article describes the design and simulation of a Codan C463 multiwire broadband dipole, using the software MMANA-GAL.

Loop-Uda-Yagi for 2.4 Ghz  ^updated - Information on wifi antenna

ALGARVE Dx Team - South Troop Amateur Radio DX Tean based in south of Portugal in Algarve province. Contest partecipations and dx peditions using portable stations and wire antenas are main activities

LU4WG Jorge - Pagina personal de Radioaficion, Satelites, Antenas, Electronica y Aviacion

Steelbras Antenas - Antenna manufacturer based in Brazil, produce mobile HF VHF and UHF antennas and VHF UHF Base antennas