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,,,,where did you get this project from...???

355.....594 mm

,,,must add ground to coaxial cable...!!!!

This antenna is designed for use on mobile and stationary objects. Antenna works with any devices in the range of 790÷960/1700÷2700 MHz (USB modems, repeaters, amplifiers, etc.). Thanks to a wide band antenna capable of operating in the most skorostnyh the mobile communication standards, with a maximum Internet speed up to 300 MB/s For the implementation of the MIMO mode, it is recommended to use two such antennas. Light weight, great aerodynamic shape and use of rare earth magnets in the magnetic system allow to keep the antenna on the roof of the car at speeds above 150 km/h! The electrical characteristics of the antenna Magnita-1 Operating frequency range, MHz 790-960/1700÷2700 Gain (excluding cable loss, when placing the antenna on the roof of the car), dBi 2÷4 / 6.0÷7.0 Gain (excluding cable loss, when placing the antenna in free space), dBi Of 2.0÷3.0 The width of the days in H-plane, degrees 360 Days width in E-plane 3dB hail 15÷45 The elevation angle of the main maximum of the radiation pattern when placing the antenna on the car roof, C 5÷25 Input impedance, Ohm 50 SWR in the frequency range, not more 1,6 Permissible power watts 10 Polarization vertical The mechanical characteristics of the antenna Magnita-1 Weight with cable g 240 Dimensions without cable, m 0,10 x 0,10 x 0,08 The force of attraction of the magnetic system (when the thickness of the metal roof of the car - 0.7 mm), N 50÷55 Connector SMA-male / on-demand The material of the radiator tin tin Material samango casing ABS + polycarbonate

I think the base is magnetic for attaching to the hood of the car...!!!

I don't think so, anyway the base cone is electrically connected to the reflector.

,,,,here it is.... klanon.stl

,,,for those who want to optimize this antenna... Magnita.cst

,,,yes,it could be covered with a plastic... ,,,sorry for the mistake, D1=70 mm

D1=99 mm ,,,and because I saw that you like square patches...

'PATCH' irradiator for an axial-symmetric antenna with a diameter of 67 cm and f/D=0.43 for receiving signals from the satellite AO-40

It's pretty simple, you just post there what's here.

,,,,papagayor....I think your post should be here... Can you move it there...???

You need something like this....

,,yes,6---8 mm...!!!! ,,,but I think a panel antenna would be better...!!!

,,,rana75,show what biquad you have...!!

Clanon, the boy has a biquad antenna...!!!

,,,try varying the distance of 355 mm for optimal reception...

,,,show your Parabolic Grid Reflector...!!!

,,hi buddy...!!! I'll try to do a simulation for you, but I think the antenna will be big enough for the desired frequency.(length=420 mm)

,,,with modified dimensions and without PCB >(galvanized sheet 0.25 mm thick)...

,,, is this true..??? https://www.amazon.com/dp/B0D75SNV2F/ref=sspa_dk_detail_0?pd_rd_i=B0D75SNV2F&pd_rd_w=O6n8b&content-id=amzn1.sym.953c7d66-4120-4d22-a777-f19dbfa69309&pf_rd_p=953c7d66-4120-4d22-a777-f19dbfa69309&pf_rd_r=972BGKJK8NP2YPEHWHCE&pd_rd_wg=hdh1C&pd_rd_r=1ceb8afb-1147-4e5d-8180-f7dc66314696&s=electronics&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWwy&th=1 ,,,with 16dBi gain SWR less than 1.8 and efficiency more than 75%....I don't really think so....!!!!! The main material (radiating body) of the antenna is PCB.

The antenna is used to connect to a repeater (amplifier) and is designed to amplify the GSM, 3G, LTE signal in offices, residential buildings and industrial premises, allowing you to get a stable stable signal for cell phones. The antenna has a wall mount that makes it easy to install and secure to the wall. Specifications: Frequency 791-821 MHz/ 832-862 MHz/ 1710-1785 MHz/ 1805-1880 MHz/ 2500-2570 MHz/ 2620-2690 MHz Type omnidirectional N - female connector Material plastic Gain up to 5 dBi Power up to 50W Cable length 20cm Operating temperature -40C: +60C Size17*10cm Wave resistance 50 ohms

Of course, with a bucket we are trying to "step twice into the same river". Discussion metal bucket as the horn has already been discussed on the internet. It is obvious that to draw energy from the twice same amount of space is impossible. Please note that the effectiveness of the example is superior to the dual mirror system and is comparable with them on bandwidth supports. Use galvanized buckets as the mouthpiece, which probably can be discussed in detail . And in this example, dispelled some myths. In particular, square (rectangular) patch element easier to manufacture at home, allows you to easily build wideband antenna and can be used in circular polarization. And here are the achievements of some predecessors...

The helical antenna is a hybrid of two simple radiating elements, the dipole and loop antennas. A helix becomes a linear antenna when its diameter approaches zero or pitch angle goes to 90º. On the other hand, a helix of fixed diameter can be seen as a loop antenna when the spacing between the turns vanishes (α = 0º ) . Helical antennas have been widely used as simple and practical radiators over the last five decades due to their remarkable and unique properties. The rigorous analysis of a helix is extremely complicated for Circularly Polarized Patch-Helix Hybrid Antenna with Small Ground. Helical antenna calculator...http://jcoppens.com/ant/helix/calc.en.php