The dual biquad antenna, also known as the bowtie antenna is a directional antenna ideal for use with mobile phones for umts, g2, g3, g4 and wifi equipment. As the biquad has a gain of 1112dbi, this means the double biquad has a gain of 14dbi, so its a pretty good performer for something thats relatively easy to build. There are three types of element within a yagi antenna. Background having experimented with a number of biquad antennas construction details here, i have found them to be relatively easy to contruct, reliable, and good performers, with about 11 dbi gain. Manual proyecto antena biquad doble telecomunicaciones. The biquad antenna is center fed and symmetric about its origin. The biquad antenna is not particularly directional, but has a fairly wide beamwidth. The double biquad antenna was first created and simulated in nec software before fabricating the antenna. Figure 1 shows the dimensions and layout of the antenna and figure 2 shows the final, fabricated double biquad antenna design. The 3db beamwidth for a biquad without side lips is typically about 4050 degrees, thus making it ideal for any applications where you want fairly wide coverage.
The test results indicate that the gain of the double biquad is approx 2dbi higher than that of the biquad, which is a significant improvement. It can be constructed from any common household copper wire 22. Apr 12, 2018 construccion antena wifi doble biquad 14 dbi free wifi duration. I decided to try using a biquad as a feed on a 24dbi conifer dish, to see if i could. Without the reflector, the propagation pattern is very much like that of a dipole. I mounted the biquad on a 24 db parabolic reflector which was designed for 2. Antena doblebiquad paso a paso antena radio soldadura. A biquad is two full wave bisquare antennas in parallel in front of a reflector 18 wavelength away. Print without changing scale and contour will be correct size on paper. The driven element is the yagi antenna element to which power is applied. Construccion antena wifi doble biquad 14 dbi free wifi.
Pdf manuales fabricacion antenas caseras contenido. I mounted the biquad at the feed point by modifying the original feedpoint hardware. Pdf manuales fabricacion antenas caseras contenido toni g. Ensure each side of the element is as straight and symmetrical as possible. Jul 14, 2014 using your calculator and instructions i built a biquad for 1900 mhz broadband internet service through a local carrier. These are really hard to bend and the diamonds are quite small so made several smaller sections and soldered them together. The main category is bazooka antenna projects that is about bazooka antenna projects and plans. It is normally a half wave dipole or often a folded dipole. Jul 10, 2014 introduction this is basic instructions on building a handmade double biquad antenna for wifiwlan 2. Changing the polarisation is just a matter of rotating the entire biquad antenna by 90 degrees.
Copper is usually used because it offers good performances in conductivity and. Descargue como pdf, txt o lea en linea desde scribd. Build a double bazooka hf antenna resource detail the. Before you start to bend the wire, make it straight as you can. Ive done quite a bit of experimentation and testing with various home made dipoles for 24dbi conifer dishes, and have managed to increase the performance of the dish. The gainbeam width 11dbi with a 50 degree beam why should i fly it.
The width of the strip is related to the diameter an equivalent cylinder. This link is listed in our web site directory since sunday mar 19 2006, and till today build a double bazooka hf antenna has been followed for a total of 32868 times. The default length is chosen for an operating frequency of 2. Double biquad antenna this page contains details on building a double biquad antenna with approx dbi gain.
Using your calculator and instructions i built a biquad for 1900 mhz broadband internet service through a local carrier. Dimensions of the fabricated double biquad antenna. Antena biquad con hdd como reflector materiales y equipos. Antena panel plano 15db 24002480mhz pequena y liviana.
The radiating elements double biquad shape were etched out of a copper layer on fr4, bent at 90 degrees. Double biquad antenna completed double biquad testing to determine the difference in gain between a biquad and the double biquad, some tests were performed, with the signal, noise and snr recorded. Diseno y construccion antena doble biquad 14 dbi youtube. Introduction biquad antenna double biquad antenna a parallel two full wave bisquare antennas the reflector is used to drive the radio frequency beam outward to a certain direction. Wifi antenna biquad mach2 bg dish wireless booster long range get free internet. Trevor marshall has a webpage with information about using a biquad as a feed on a primestar satellite dish, with very good results. About build a double bazooka hf antenna the resource is currently listed in in 4 categories. The antenna was constructed so that the four s quares each had a side length equal to one quarter wavelength of 5.
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