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Everything posted by Admin
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I will design you such an antenna for the desired frequency....!!!
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I think I'll make you a good antenna for the desired frequency."
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ChatGPT or DeepSeek will never be able to solve your problems in a real way...it's fake"
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papagayor...see this ",,,such an antenna can be calculated for the 3300-3800 MHz band"
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,,,this is not a biquad antenna...!!!
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,,,I have redone the dimensions (in green) for the 2.442 GHz frequency....!!!
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2x2 antenna panel that shows a circular polarization and operates in 3G frequency band...
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Maybe this will help you...
- 13 replies
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1
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- long range
- penetration
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(and 4 more)
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Is this type of antenna also REMO brand...???
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,,,model... 917 x 720 welded iron bars (Pacific Grid) 917mmx720mm and 150mm deep f/d = 0.38 grid parabola.cst
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,,,,for 50 Ohm... ,,,,next 75 Ohm ,,,technical details... ,,,to change the impedance the power pin diameter(d0) must be changed...!!! The SMA plug remains the same, 50 Ohm impedance, only the coaxial cable is 75 Ohm.
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,,, type of antenna,not very easy to produce , but with good results in circular polarization. Between the patch and irradiated put plate of polystyrene or polyurethane...
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,,,this must be it...!!!
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Double Patch Regular Polyhedron The rectangle 94*68 mm, the sides of the cutting plane 28 and 16 mm rack Diameter 6 mm. each patch has an input impedance of 100 Ohms, between 0.5 *Lambda of the connecting line. Obtained by parallel connection of 50 Ohms. And cool chart SWR the broadband is a patch in the form of an pseudo- ellipse with eccentricity 0.8, 2 Patches of narrow-band, but with the increase of the gap band of operating frequencies increases at 0.1 Lambda reaches 10/11 %. When band gaps, increases the ability of multi-mode excitation. With the increase of the gap increases and the value of the input impedance. Based on this information, can built a patch with a gap from the reflector is 15 mm. The line length is 0.5 L, so its width is not critical. In this project its width is about 2 mm d = 1 mm The gap( between the surfaces) 15 mm width to reflector Conn. line 13 mm. the distance between the two coherent emitters choose, usually based on two criteria. Or the maximum gain, then it's 1 lambda or a little more. Or at a minimum side lobes, then it is less than lambda, about 0.7/0.8.
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A cantenna ( blending the words can and antenna) is a homemade directional waveguide antenna, made out of an open-ended metal can. Cantennas are typically used to increase the range of (or discover) wi-fi networks. Although some designs are based on a can, this tube is too narrow to increase the 2.4 GHz signal by a useful amount, although at 5 GHz it would be about the right size. However, a cantenna can be made from various cans or tubes of an appropriate diameter. Some designs include a pole mount to elevate the cantenna.
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,,,let it be a sketch....
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",,,such a yagi antenna can also be attached to the focus of a parabola.... The 8x8 boom is made of insulating material....
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,,,for which antenna...??
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,,,no...
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Lunokhod-1 and its antennas! Is the antenna a cannon or a ribbed rod? In fact, this is an antenna complex! Ribbed-rod guiding director system with an active element in the form of a spiral axial radiation antenna! Do you want a good 4G LTE MIMO antenna "like Lunokhod-1" for your dacha?
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The Best Wideband Magnetoelectric Dipole Antennas With Dual Polarization and Circular Polarization... 07091876.pdf
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Petra 9-simulation and dimensions...
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Hope to see you via EME(Earth-Moon-Earth) on 23 cm Two-way radio communication on VHF ,UHF,SHF and above using the Moon as a passive signal reflector. Commonly referred to as “moonbounce”.
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Do you mean 1 mm, not 10 mm?