design for s band antenn

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design for s band antenn

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Antennas : 23cm
  • DL6WU Yagi Antennas for 1200 MHz - Dubus article about DL6WU long yagi antennas for 23 cm band Article is both in german and english. Yagi antennas are valid alternative to dishes for troposcatter operations. This article explains design and mechanical data for 1296 MHz Yagi Antennas
    [ Hits: 313 | Votes: 1 | Rating: 10 ]
  • 43 Elements Yagi Antenna for 23cm band - An interesting presetnation full of usefull tricks to correctly design and build 23 cm Yagi using simple tools. The basic design of the antenna presented in this document is taken from the original DL6WU Yagi Design published in 1982
    [ Hits: 423 | Votes: 1 | Rating: 8 ]
Antennas : 2M
  • Squarooka Antenna - squared bazooka for 2 meters band - Sort of similar to the one of the 6m omni. Instead of using twin-lead, this design makes use of a more or less regular double bazooka antenna (coaxial dipole). Your attention shall be drawn to the available standart literature, such as Rothammel. In order to "compute" the dimension, Karl Rothammel mentioned that the total length of the dipole shall be 95% of the free-space wavelength. The short-circuit bridges (closing the folded dipole) are to be placed at a distance-fraction being equal to the velocity factor of the coax cable used, which will be 66% using RG-58 or RG174.
    [ Hits: 353 | Votes: 0 | Rating: 0 ]
Antennas : 40M : 40 meter Dipole Antennas
  • Linear Loaded 40m Dipole - Dipole for 40m band. It is a simple linear loaded dipole feeded with 450-Ohm openwire feedline. Designed it for resonance at 7.050 MHz, can be tuned on 30m and 80m bands with an external antenna tuner. Build with simple electrical copper wire (2.5 mmq/13 awg) and two fishing poles with size of about 7 m/23 ft.
    [ Hits: 159 | Votes: 0 | Rating: 0 ]
  • Half-Length Dipoles for 40 Meters - Complete collection of the four main parts of this excellet research on modelling and designing half wave dipole antennas for 40 meters band, covering all aspects beginning from full wave length antennas, to shortened, loaded and reshaped dipoles
    [ Hits: 377 | Votes: 2 | Rating: 10 ]
Antennas : 6M
  • 6 metre SOTA Antenna - A simple and light vertical coaxial dipole for 50-52 MHz band, designed for portable SOTA operations based and inspired by the VK2ZOI flower pot antenna
    [ Hits: 164 | Votes: 0 | Rating: 0 ]
Antennas : 6M : 6 meter J-Pole Antenna
  • 6 Meter Homemade J-Pole Antenna - A homemade j-pole antenna for six meters band, designed to work on local repeaters, and working on the 52-53 MHz. Includes a list of needed materials and detailed description on assembling the copper tubes used to build this antenna.
    [ Hits: 252 | Votes: 3 | Rating: 4.67 ]
Antennas : 70cm
  • J-Pole antenna for UHF Bands - This is a simple half wave antenna for 70 cm band, made using the jpole design.
    [ Hits: 192 | Votes: 1 | Rating: 10 ]
Antennas : Halo
  • Halo Antenna for 50 MHz - The antenna described in this article is for 50 MHz, but the design can be scaled for any band, including VHF, UHF, or even the higher HF bands. The antenna is nothing more than a square loop of wire, approximately 30" (or ~76cm) per side. The loop is fed in the middle of one side, and the opposite side to the feed point has a gap in it.
    [ Hits: 292 | Votes: 0 | Rating: 0 ]
Antennas : Lindenblad
  • The Lindenblad Antenna - Presentation - This is a presentation used at OVARC on the LindenBlad antenna construction. The presentation cover several topics about this antenna, from the basic antenna design, to the guide on how to contruct a custom lindenblad antenna for the 2 meters band and and 70 centimenters band.
    [ Hits: 639 | Votes: 0 | Rating: 0 ]
Antennas : Magnetic Loop
  • Magnetic Loop for the 2m band - Such kind of omnidirectional antenna gives the possibility to be QRV with horizontal polarisation, as commonly used for the CW and SSB section of the 2m band. This actual design shows a 1.3:1 bandwidth of about 150kHz, centered to 144.200MHz.
    [ Hits: 572 | Votes: 1 | Rating: 10 ]
  • Indoor QRP HF Loop Antenna - A home made magnetic loop for HF Bands. This small and compact loop is designed to support small power transmissions on HF bands, from 7 MHz to 21 MHz
    [ Hits: 323 | Votes: 1 | Rating: 10 ]
  • Magnetic Loop for 20 meters band - A magnetic loop antenna designed for 14 MHz. This kind of antennas is also known as STL, small transmitting loop and can be an excellent solution when you are not allowed to put antennas on your roof
    [ Hits: 204 | Votes: 0 | Rating: 0 ]
Antennas : OCF
  • The Off-Center-Fed Dipole Antenna - The OCFD Off-Center-Fed Dipole Antenna is an excellent multiband antenna that is relatively simple to construct, yet gets quite decent performance.
    [ Hits: 326 | Votes: 2 | Rating: 9 ]
Antennas : Stealth
  • Linear Loaded Dipole for 15m and 20m - A small dipole antenna installed inside a balcony. This linear loaded short dipole antenna has been designed at first for the 21 MHz and then adapted for the 20 meters band.
    [ Hits: 620 | Votes: 2 | Rating: 4.5 ]
Antennas : VHF UHF
  • VHF-UHF Long Boom Very High Performance Antenna Designs - Experimental Long Boom Antennas - CP, LPDA, multiband with several NEC Files for 50MHz 144MHz 222 MHz 432MHz but also 902MHz and 1296 MHz Antenna projects. Includes also for each antenna model, in a general comparison table each antenna characteristics including Directive Gain, G/T, E-F/R, H-F/R abd Boom Length. This is a great value comparison table of several commercial and home made VHF UHF antenna projects.
    [ Hits: 188 | Votes: 1 | Rating: 10 ]
  • Modifications to the Diamond V2000 and similar antennas - This kind of antenna has grown in popularity over the last years because it gives you a decent performance and triband capabilities. But its 50 MHz design is far from optimal. Here you can learn how to improve its 50 MHz performance in a very easy way.
    [ Hits: 627 | Votes: 2 | Rating: 9.5 ]
Antennas : Vertical
  • 5 Band Pipe Vertical Antenna - A simple, cheap and easy to build 26 feet long vertical antenna that works DX on 20 - 10 meters including WARC Bands, it is designed for portability for field days, camping, or permanent installation, cost, and to achieve at least 1/2 wavelength on the WARC bands.
    [ Hits: 549 | Votes: 5 | Rating: 6.2 ]
Antennas : Wire
  • The K2AV FCP Single Wire Folded CounterPoise - Efficient Low Band Counterpoise for Restricted Circumstances Loss Avoidance Opportunities and Techniques for the Low Bands The short and linear FCP was designed to reduce ground losses from inadequate radial systems beneath inverted L and other vertical antennas.
    [ Hits: 283 | Votes: 0 | Rating: 0 ]
Antennas : ZS6BKW
  • The ZS6BKW Multiband HF Antenna - This is the antenna for you guys who want to get on HF effectively, and haven’t too much space or cash to throw around. Actually, it’s a design from ZS6BKW (aka G0GSF), similar to the G5RV, but it actually resonates on five bands, (well 6, actually) and doesn’t rely on a tuner (ATU) to make it work.
    [ Hits: 469 | Votes: 5 | Rating: 9.8 ]

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