radiation pattern

radiation pattern

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• The extended double zepp - This wire antenna exhibits extraordinarily high gain in a bi directional radiation pattern.
  [ Hits: 12408 | Votes: 28 | Rating: 8.11 ]

• 20m delta loop  ^pop - This antenna is fed for vertical polarisation, to give a low angle of radiation for DX and also a nearly omni-directional radiation pattern.
  [ Hits: 65722 | Votes: 69 | Rating: 6.71 ]

• The half-wave dipole, your first antenna - Construction tips of a basic wire antenna, the half wave dipole. Inverted V dipoles and effects of inverted v on radiation pattern.
  [ Hits: 235 | Votes: 1 | Rating: 9 ]
• The Standard Horizontal Dipole Characteristics - Discussion about the Standard Horizontal, Center-fed dipole and effects of elevation of the antenna on antenna radiation pattern.
  [ Hits: 127 | Votes: 0 | Rating: 0 ]

• G5RV All-Band HF Antenna  ^pop - About G5RV antennas, with radiation pattern produced with eznec
  [ Hits: 29623 | Votes: 13 | Rating: 4.54 ]

• Tri-Band J-Pole - This strange looking antenna is a combination of Coupled-Resonator principle by K9AY and a quarter stubs to achieve low angle radiation pattern. Designed with 4nec2 NEC based antenna modeler and optimizer for 145/220/440MHz bands
  [ Hits: 1922 | Votes: 5 | Rating: 9 ]

• Antentop: Loop Antennas - Article on radiation patterns of small loops, equivalent circuits of loop antenna, small loops as receiving antennas, ferrite loops
  [ Hits: 2169 | Votes: 4 | Rating: 8 ]

• A Multi-band HF loop antenna - The multi band HF loop antenna, a good performer on 80 and 40-10 meters. This excellent article covers all aspects of designing a resonant loop antenna, examining gain and radiation patterns, and describing practical notes on how to build this antenna.
  [ Hits: 11239 | Votes: 26 | Rating: 6.76 ]

• The Basics of Patch Antennas - This article explores the basic concepts of patch antennas. Topics include principles of operation, impedance matching, radiation pattern, circular polarization, bandwidth, efficiency, alternative feed types, stacked patches and higher mode behavior.
  [ Hits: 805 | Votes: 1 | Rating: 9 ]

• Rhombic Antenna for Shortwave Radio Broadcasting - Rhombic antenna for shortwave radio broadcasting, general description and radiation patterns
  [ Hits: 2806 | Votes: 1 | Rating: 10 ]

• Antenna Height Theory - Antenna mounting height, the higher the better? Learn how radiation pattern change, and decide if you need an higher or a lower angle for your dx needs.
  [ Hits: 1878 | Votes: 5 | Rating: 7.2 ]
• Understanding Radiation Patterns - Understanding and using antenna radiation patterns
  [ Hits: 534 | Votes: 0 | Rating: 0 ]
• Antenna Measurements - The electrical characteristics of an antenna that are of interest to obtain by direct measurement are the frequency at which the antenna is tuned, the gain and radiation pattern
  [ Hits: 946 | Votes: 3 | Rating: 4 ]
• Radiation Characteristics - Tailoring Patterns for HF Verticals
  [ Hits: 246 | Votes: 0 | Rating: 0 ]
• Azimuth Radiation Patterns - Below VHF the change in the radiation characteristics of an antenna will change considerably from frequency to frequency, making antenna selection more complicated.
  [ Hits: 820 | Votes: 1 | Rating: 10 ]
• Basics of antennas - The current, the voltage, the impedance, the bandwidth, the polarization, and how the earth influences the famous radiation pattern.
  [ Hits: 701 | Votes: 0 | Rating: 0 ]

• DK7ZB 144 mhz Yagis - High gain, good pattern and acceptable bandwidth. These aims can be realized with a radiation-resistance of 25-35Ohms, because the 28-Ohm-feedpoint is very simple to match.
  [ Hits: 1908 | Votes: 7 | Rating: 6.86 ]

• How to stack dissimilar yagi antennas - In this article the author provides some guidelines on how to solve a common problem when stacking different types of yagi antennas on the same mast, limiting the effects on gain and radiation pattern of both antennas
  [ Hits: 727 | Votes: 2 | Rating: 5.5 ]

• Yagi Designer - Program that produces antenna radiation patterns and graphs for SWR, forward gain, and F/B ratios
  [ Hits: 22768 | Votes: 64 | Rating: 6.31 ]
• 4NEC2 antenna modeler  ^pop - 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler. Can be interfaced to HFwin32 propagation prediction software.
  [ Hits: 30104 | Votes: 131 | Rating: 7.32 ]

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