phase antenna

phase antenna

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• Directional Helical Antenna - This antenna is intended for the 20-meter Band. There are two Voltage Fed Helical Dipoles, made with 2 slinky that fed with phase shift in 90 degree
  [ Hits: 1087 | Votes: 1 | Rating: 8 ]

• 2m Quad Turnstile Antenna - The loops are made of 10 mm round aluminum tube. No bending pliers was used to gently bend 90 degrees to obtain a square with 53 cm inner sides. Each loop has an impedance of approximately 100 Ohm. To connect both radiators in phase, a quarter wave long feeder of 100 Ohm is required.
  [ Hits: 207 | Votes: 0 | Rating: 0 ]
• An 8x2 Element Array Antenna For 144 MHz - This stacking offers a well known simple phasing technique. All elements can be fed in parallel by open wires provided that they are fed in phase. This can be achieved by twisting the open wire phasing-lines at 180 degrees.
  [ Hits: 165 | Votes: 0 | Rating: 0 ]

• Six Meter Quad Turnstile Antenna - Simple 6 Metre DX Antenna based on an article by LB Cebick in QST May 2002 on a Quad Turnstile antenna. This antenna is basically two full wave loops mounted at right angles fed 90 degrees out of phase to produce an omni-directional horizontally polarized pattern
  [ Hits: 702 | Votes: 2 | Rating: 9.5 ]

• Coaxial Collinear Antenna for 70 CM Band - This coaxial collinear antenna was built to test for my own consumption whether or not this antenna method actually works. the guiding principle is that we have multiple 1/4 wave elements fed in series , the radiation from each adds in phase to produce a large vertically polarised omni-directional antenna with substantial gain
  [ Hits: 575 | Votes: 3 | Rating: 6.33 ]

• Phased Delta Loops - An interesting article with many technical details on a phased delta loop array for 80 meters band includes pictures of antenna relays
  [ Hits: 2000 | Votes: 4 | Rating: 10 ]

• Convert 40m 2-element to a Phased Drive Array - This presentation details the work of converting a 40m 2-element reversible beam antenna into a phase-driven type of array
  [ Hits: 877 | Votes: 1 | Rating: 2 ]
• Phased Vertical Antennas for 40m - Phased wire vertical antennas for 40 meters band
  [ Hits: 1009 | Votes: 2 | Rating: 7.5 ]

• A Reversible Beverage at ZL3IX - How do two-wire reversible direction Beverages work, an excellent document that explains fundamentals of beverage antennas. This article details the design and performance of a reversible beverage antenna. Leveraging orthogonality between common mode and differential mode currents on a 2-wire line, this antenna facilitates independent reception from both ends. While common mode signals arrive and are summed on a transformer's secondary for common mode reception, differential mode signals induce anti-phase currents, providing individual reception. Various measurements explore impedance, transmission loss, and F/B ratio, highlighting the antenna's effectiveness and areas for improvement. Notably, increasing the antenna's height significantly improved performance.
  [ Hits: 520 | Votes: 0 | Rating: 0 ]

• DL-Special DX Antenna - 2 Delta Loops in Phase  ^updated - Two Delta-Loops in phase. The purpose of this article is to propose an antenna with a high gain, a high efficiency and a very low price that is easy to build for any frequency.
  [ Hits: 1076 | Votes: 5 | Rating: 7.8 ]

• Transformers for low-bands antennas - Transformers can be used as part of a hybrid combiner or as phase inverters for an RX antenna array.
  [ Hits: 153 | Votes: 2 | Rating: 5.5 ]

• Shrunken 40 Meter Phased Quads - A 2 element small footprint 40 meter phased, reversible, downsized quad array antenna.
  [ Hits: 1151 | Votes: 4 | Rating: 8 ]
• The Swiss Quad Antenna - Rotatable Antenna with Phased Elements based on the orignal design concept of HB9CV antennas, is considered to have an higher gain than standard quad antennas. The Swiss Quad Antenna does not need any spreader or boom.
  [ Hits: 365 | Votes: 3 | Rating: 7.67 ]

• Double Half-Delta Loop RX Antenna - This wire antenna was developed to offer for a small, low-band, ground independent directional receiving antenna, it requires only two support poles. It is basically composed by two interconnected half delta loops and is better than a single flag or EWE, and almost as good as two phased EWE in the same space.
  [ Hits: 939 | Votes: 0 | Rating: 0 ]

• Phasing of two identical antennas - Phased Spaced Active Whips and Broadband Loops by WA1ION
  [ Hits: 401 | Votes: 1 | Rating: 2 ]

• Lazy H Array Antenna for 40 meter - Make them simple then Make them work. The LAZY H antenna is a general type of antenna that is in the curtain array family. By placing two 1 wavelength dipoles in a plane that is at right angles to the direction of maximum radiation and keeping the proper in-phase current condition to each element, you can achieve a high gain bi-directional antenna.
  [ Hits: 284 | Votes: 3 | Rating: 5.33 ]

• W8JK Beam Antenna - The W8JK is a famous and effective DX antenna, first built by John Kraus, W8JK, in 1937. A Beam antenna with two parallel dipoles driven with opposite phase, with a close spacing of an eighth of a wavelength.
  [ Hits: 5151 | Votes: 21 | Rating: 7.19 ]

• Active Antenna Amplifier - Manufacturer of amplifier for small magnetic and electric receiving wideband antennas, and variable delay line kit for active antenna phased arrays
  [ Hits: 279 | Votes: 0 | Rating: 0 ]

• The MonoGap Antenna for 30m Reviewed - A review of the 30 meter MonoGap Antenna. This review covers from the unboxing go the Gap product, the assembly of the elements, the test and tuning phase and a performance report during the years
  [ Hits: 241 | Votes: 1 | Rating: 10 ]

• Noise cancellation on 2m using 2 antennas - Article on Phase-cancellation of noise on 2m band
  [ Hits: 503 | Votes: 2 | Rating: 3 ]

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