beam

beam

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• Two on 10 - A two element beam antenna for ten meters band. This home-brew two-element beam is the perfect introduction to rolling your own gain antenna
  [ Hits: 338 | Votes: 2 | Rating: 8 ]

• 160m 80m Vertical Antenna - A dual band vertical antenna for 160 and 80 meters band, on a 18m spiderbeam fiberglass pole. This vertical is a good compromise when you want good performance on these two low ham bands and don't have the space to install two seperate antennas.
  [ Hits: 186 | Votes: 0 | Rating: 0 ]

• The Vertical Buddi Beam for 20m - The Vertical Buddi Beam on 20m using no Coils. n this article I am going to describe a totally new way to construct and use a very old design the two element Yagi antenna. Unlike the traditional Yagi this design does not require a Tower or a boom, it is 100 percent portable and most important high- performance and easy to assemble using standard Buddipole components.
  [ Hits: 579 | Votes: 2 | Rating: 4.5 ]

• 50 MHz Omnidirectional antenna - Horizontal polarized omni directional 50MHz Antenna. This antenna is intented to use in a contest station as a second system beside the stacked yagi beam system. An omnidirectional systeem can be an advantage when it comes to short openings on wich the operator must react quickly.
  [ Hits: 315 | Votes: 6 | Rating: 2.5 ]

• 80m Vertical - This is a FULL SIZE quarter-wavelength vertical made on a 18m Spiderbeam fiberglass telescoping Spiderpole
  [ Hits: 139 | Votes: 0 | Rating: 0 ]

• 3 Element Yagi Calculator - This calculator is designed to give the critical information of a particular beam antenna, in this case a three element Yagi, for the frequency chosen.
  [ Hits: 437 | Votes: 5 | Rating: 5.6 ]

• Phased Array Antennas - Phased array antennas are composed of multiple individual antenna elements that can have their phase and amplitude controlled to steer the main beam direction in real-time. They are used in radar, communications, and electronic warfare, and offer improved gain and reduced side lobes. A comprehensive document on Phased Arrays include techniques to increase the Antenna Gain and change the Radiation Pattern
  [ Hits: 82 | Votes: 0 | Rating: 0 ]

• HexBeam Antenna Explained - A hexagonal beam is a form of the Yagi antenna which is based on parasitic principles developed early in the last century in Japan for achieving gain in one direction.How HexBeam antennas works. A hexagonal beam operates exactly like Yagi antenna, but instead of a driven element that is straight like a dipole, it is a wire bent into the shape of the letter M.
  [ Hits: 171 | Votes: 0 | Rating: 0 ]
• Spiderbeam VS Hex Beam - Differences of Hex Beam and Spiderbeam antennas designs, performance and measurements, rotor considerations when using this two kind of antennas
  [ Hits: 411 | Votes: 6 | Rating: 9.67 ]
• My Cheap Hexbeam - With an eye to the final cost I have built a good 20 meter monoband Hex Beam antenna.
  [ Hits: 177 | Votes: 0 | Rating: 0 ]

• What is Horn Antenna - Horn Antenna - The energy of the beam when slowly transform into radiation, the losses are reduced and the focussing of the beam improves. A Horn antenna may be considered as a flared out wave guide, by which the directivity is improved and the diffraction is reduced. One of the first horn antennas was constructed in 1897 by Bengali-Indian radio researcher Jagadish Chandra Bose in his pioneering experiments with microwaves. The modern horn antenna was invented independently in 1938 by Wilmer Barrow and G. C. Southworth. This Horn model antenna is suitable employed in the UHF or SHF radio bands. Making this horn model antenna it will be easy for a beginner to make if it works in the 10GHz frequency, because small dimensions so it is not so difficult and also offers gain up to 25dBi.
  [ Hits: 74 | Votes: 0 | Rating: 0 ]

• 2 Meter Portable Yagi Antenna - 144MHz 2m Portable Yagi VHF Beam Antenna. This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use.
  [ Hits: 135 | Votes: 0 | Rating: 0 ]
• The 2BD beam antenna for 20 meters - A light portable 2 element Delta beam antenna for 14 MHz. It is basically a two element delta loop wire antenna made for portable usage providing good directivity and a 4.2 dBd gain
  [ Hits: 185 | Votes: 1 | Rating: 8 ]

• A Simple 2 Element Quad Antenna for 10 meters - Quads beams consist of 2 1 wavelength (approximately) loops, ordinarily arranged so that one is the driven element and the other is the reflector. In this project author explains how to build a two element Quad Antenna for the 28 MHz.
  [ Hits: 273 | Votes: 1 | Rating: 7 ]

• What We Can Expect from a 2-Element Beam - Method, Units of Measure, and the Dipole Standard of Reference. This article helps in understanding where does beam gain come from in directional aerials like in example Yagi antennas.
  [ Hits: 101 | Votes: 0 | Rating: 0 ]

• 80m-40m Dual-Band Vertical - A dual band 40-80 vertical antenna on an 18m Spiderbeam Fiberglass Spiderpole, with monoband performance
  [ Hits: 160 | Votes: 2 | Rating: 10 ]

• Wire Beam Antenna Types - In this article the author feature the various types of beam antenna that can ben builw using wires, like moxon, spieder and hex beam, delta loops, bird yagi
  [ Hits: 153 | Votes: 2 | Rating: 6 ]

• NA4RR HexBeam - NA4RR manufacture a six band hexagonal beam antenna for ham radio, covering 6, 10, 12, 15, 17, and 20 meter.
  [ Hits: 157 | Votes: 0 | Rating: 0 ]

• ANjo Antennen - Amateur radio antenna manufacturer produces mainly VHF UHF beam antennas based in Germany
  [ Hits: 105 | Votes: 1 | Rating: 1 ]

• SteppIR UrbanBeam Review - A review of the SteppIR UrbanBeam antenna a two element Yagi antenna working 40-6 meters. The UrbanBeam is a good choice for those thare are limited by lot size, regulations, city regulations.
  [ Hits: 191 | Votes: 1 | Rating: 1 ]

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