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I followed this forum and tried to do a simulation for this frequency (L-band 1500-1700 MHz)....for last mystery of maritime communication-satellite Inmarsat!!! https://www.radioscanner.ru/forum/topic50990-11.html

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

355.....594 mm

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

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.

Triton_Mgn says,,, Good afternoon, give the antenna a good antenna for the 1800 MHz mimo Found 2 antennas on the forum: 1 - http://www.lan23.ru/forum/showthread.php?t=12671 But, unfortunately, not its size at the desired frequency, tell me who knows. 2 - http://www.lan23.ru/forum/showthread.php?t=10879 Could you tell me the thickness of the disc, can I use galvanized? In the drawing, the antenna of this size for the lower frequency 1747,5 pink color, and upper 1842,5 green. Why, then, in the drawing there are dimensions in blue? My answer is,, it can build a patches antenna instead of a disks, a horizontal patch antenna group (at one end of the frequency band) and the other group with vertical polarization (at the other end of the frequency band)

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...