Welcome to WIFI Antennas
Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.
Admin
Administrators-
Content count
4634 -
Joined
-
Last visited
Everything posted by Admin
-
,,, yes, I think this topic was discussed on a forum...offset helicoidal parabolic antenna....radio vorticity:
-
I don't have these dimensions..maybe only by approximation ....!!!
-
,,, the vibrators are placed on an insulating plate or insulating tube PVC spaced from the reflector ... there are many solutions ... !!! The 50 Ohm impedance coaxial cable connects directly to the feed points.
-
Speak in English...!!!
-
,,, here you can find what interests you ... !!!
-
-
,, these would be the dimensions ... PCB material double plated FR4 #0.5mm
-
for which antenna ... ??? where is Harry36's original drawing ... ???
-
,,, there are a lot of antennas on this forum ... choose one ... !!!
-
Samir, only English is spoken here ... !!! ,,,for 75 ohm cable the only difference is h1 and h2...!!!
-
,,,what does the antenna look like ... ???
-
,,, yes, but I think the reflector is a kind of satellite dish...!!!
-
These are the dimensions for the 2.4GHz Bester antenna
-
The four-arm helical structure antenna is composed of four helical arms, and the length of each is an integer multiple of a quarter wavelength. The current amplitudes of the feed ends of the four spiral arms are equal, and the phases are sequentially different by 90°. It has a cardioid pattern, a good front-to-rear ratio and excellent wide-beam circular polarization characteristics. It is very suitable for use as a receiving antenna for a satellite positioning system. Parameter: Antenna impedance: 50 ohms Working frequency band: 1.4 ~ 1.68GHz Size: 23mm*78mm*1.6mm Weight: 8.4g Antenna connector: SMA (male)
-
Samir,, wait until I do a simulation for the 75 Ohm coaxial cable..!!!
-
,,.it is still possible(2,4 GHz) ...!!!
-
I think so....!!! 4.bmp
-
,,, for coaxial cable with impedance of 75 Ohm another distance between reflector and vibrator is needed...!!!
-
MiMo Bester after optimization.... ,,, constructive details ...
-
,,, a simpler and improved version... ,,,notched vibrator and supplied directly with coaxial cable...!!!
-
-
,,, yes, that's about it...
-
,,, more details about this antenna ....https://www.lan23.ru/forum/node/11134
-
KROKS KAA20-2600 Dimensions (length , width , height ), mm 445 x 445 x 80 Antenna characteristics: Operating frequency range, MHz 2400-2700 Antenna gain, dB 20 VSWR in the operating frequency range, not more than 1.7 Polarization Линейная Input impedance, Ohm 50 Maximum input power, W 10 Connector N- female F- female Permissible wind load, m/s 30 Operating temperature range, °C -40 … +50 Maximum permissible humidity, % 100 Port isolation, not less, dB 30 Communication standard WiFi 2400 LTE 2600 Type of mounting на трубу Execution type Панельная
-
Antenna KATHREIN production are not only exceptional electrical characteristics. Special attention is paid to the mechanical characteristics of the antennas.
