Kata Kunci- biquad, unidirectional, bandwidth, WLAN. Dengan demikian antena biquad ini, dapat digunakan pada teknologi WLAN 2,4 GHz. Meskipun demikian kinerja antenna biquad ini bias diandalkan karena memiliki Return Loss sebesar -11,574 dB, VSWR sebesar 1,717, pola radiasi unidirectional, penguatannya sebesar 11,506 dBi dan bandwidth sebesar 275 MHz. Dalam penelitian ini dirancang sebuah antena buquad sebagai antenna alternatif yang sederhana, berdimensi relatif kecil (0,01m2), fleksibel, praktis, dan murah (menggunakan kawat tembaga) untuk aplikasi wireless LAN 2,4 GHz. Untuk sistem komunikasi wireless 2,4 GHz terdapat beberapa jenis antena yang dapat digunakan, dengan beberapa kekurangan. If you keep adding elements to a Quad Antenna, put it in a circle with an inner reflector, than it would be more omni-directional but it could have a zone that is not covered as evenly as the. Current distribution Biquad Wifi Antenna Satellite Dishĭewasa ini, untuk mengkoneksikan sistem informasi dan jaringan komputer banyak menggunakan teknologi wireless LAN (WLAN), khususnya dengan frequensi 2,4 GHz. The Double BiQuad is a directional antenna, you would need multiple Raspberry Pi to be able to cover each zone. Plot the radiation pattern for this antenna at the frequency of best match in the band. Plot the reflection coefficient for this antenna over the band and a reference impedance of 50 ohms. From the figure, observe the antenna resonates around 2.4GHz. Calculate the antenna impedanceĬalculate the antenna impedance over the frequency range of 2.3GHz to 2.6GHz. Create a quadCustom antenna using the parameters defined. You can increase and decrease the length of the Boom and, you can move the Boom by changing the BoomOffset property. Space the parasitic elements 17mm from driven element and the reflector 19mm from the driven element. This small device, about the size of your thumb, provides. It is widely used because of its properties: Compact and thus can be portable, Easy to make, Cheap, Only one radiating element and reflector, 11dBi gain, SWR as low as 1.05 if made ideally. Define the design parameters of the antenna as provided.īiquad antenna is also known as Double Quad Beam or some call it Bowtie Beam antenna (Bowtie Beam is also the name for the subtype of the Biconical antenna). Use dimensions of 30mm element for the first parasitic element followed by 31mm, 32mm, 33mm, then 34mm driven element and a 36mm reflector at the rear. Define parametersĭesign the biquad yagi antenna to operate at 2.4GHz. Biquad Yagi antenna is popularly used in WIFI applications.
#HOME MADE DOUBLE BIQUAD WIFI ANTENNA HOW TO#
Use mine calculated data and measurements for 5-5.8 GHz antenna.This example shows how to analyze the performance of a customized Yagi-Uda antenna. (Note: all calculations in links are for 2.4 GH z WiFi antenna. There are plenty of tutorials for these steps:, or I will not show you picture after the picture how to drill the hole in center of reflector. Spacers must beįrom any non-metallic material. Spacers in each end of the element to hold its position and spacingĬorrect height between the radiator and the reflector.~30 cm length of copper wire for the element.Long cable will defeat the purpose of the antenna. The cable length, the more signal loss you'll have through the cable. ( Very important to choose proper cable! the longer (Simulation parameters for six antennas and averages) frequencies: 5200, 5300, 5500, 5580, 5700, 5805 MHz and found out that all parameters is quite the same, so instead of dozen antennas for every channel I would recommend single based on average calculations from six simulations.
#HOME MADE DOUBLE BIQUAD WIFI ANTENNA SOFTWARE#
All measurements based on very careful analysis with computer software which results many times has been proven to be quite accurate and reliable in physical world.ĥ - 5.8 GHz is fairly wide frequency range so I calculated 6 antennas for 6 diff. I used computer software 4nec2 (antenna modeler and optimizer) version 5.8.11 to model theoretically the perfect antenna. This means that the increase in +1dBi is a big deal. Note: The dBi scale is logarithmic in base 10, where +3 dBi is a doubling in gain! An increase in gain of +1 dBi is equivalent to an increase of 26% and +2 dBi is equivalent to an increase of 60%. This is basic instructions for handmade WiFi 5-5.8 GHz 13-14dBi Double BiQuad external antenna.
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