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

    3150
  • Joined

  • Last visited

Everything posted by Admin

  1. Technical specification for manufacture of powerful antennas and high gain exclusively for FPV needs was consistent with the known Scientific-Production Center. The centre has a serious scientific potential, SOOOOO expensive equipment, modern production base and its patented production technology. The guys have been designing and manufacturing aerials for over 15 years and know about antennas just about anything, have experience of working with domestic manufacturers of UAV, FPV, therefore, subject them in part familiar and in this respect they have certain practices. Just what we needed: 1) Create an antenna that would have a large gain, comparable with the antenna "Yagi" in the popular FPV range 1160-1280Mhz. 2) To the antenna form factor was close to a patch antenna (for ease of placement on a tripod) 3) had an adequate angle of orientation, eliminating the need to use the rotary system for tracking the model at long distances Antenna gain from a 14.7 dB at the extreme frequencies of the range 1160Mhz 1280Mhz. Not difficult to guess that the gain in the middle of this range is significantly higher (the guys understand the task "literally"). This reinforcement is "not theoretical" and measured on real devices, on average, it in two times better than any patch. 2) the Antenna has dimensions of 400х400х25мм (including the case) 3) the Angle of orientation of the antenna about 40 degrees, which is not bad. Specifications : The most effective frequency range: 1160-1280Mhz The gain in the effective frequency range: 14,7 dB VSWR: less than 1.5 Polarization: linear vertical The radiation pattern Vert/Horiz: 40/40 degrees Input impedance: 50 Ohm Connector: N-type "mother" Weight: 2kg As we can see, the antenna is a... rather strange design four groups oval active elements. Between them the special material. The reflector is a metal substrate, the active elements in each group, TWO(!!!) (instead of one in the classic patch).
  2. ,,, if you add a dielectric lens (polystyrene foam), you can increase the gain in directivity ...
  3. This page details the construction of a biquad antenna. The biquad antenna is easy to build, and provides a reliable 11dBi gain, with a fairly wide beamwidth. an antenna geometry of ideal biquad...
  4. ,,, it was appropriate to make the rectification required by optimizing the Batwing antenna for 5GHz band frequency.... ,,, and the practical realization of antennas ...
  5. I was looking for a design that promised reasonable gain without excessive size. The short backfire antenna is not a common antenna, promised 20dBi and looked easy to build. Several designs were found and analysed which did reveal a few discrepancies which seem now that been resolved. A quick look at the finished antenna shows a 'cake tin' style base fed with a elliptical patch as vibrator and a waveguide as sub-reflector.
  6. Powerful wide-band antenna 2G/3G/4G/WIFI. Strengthening 17.5-20.0 dBi.It is recommended to use complete with universal modems Huawei Е392,E3276(M150-1) and the usual 3G and 4G modems. Electrical characteristics Operating frequency range, MHz 1700-2700 The gain in the GSM1800 band, dBi 17,5-18 The gain in the 3G range (1.9 to 2.2 GHz), dBi 18-19 The gain in range of WIFI (2.4 GHz), dBi 19,5 The gain in the range of 4G (LTE), dBi 19,5-20,0 The width of the days in H-plane, degrees 15-26 Days width in E-plane, degrees 15-26 The sidelobe level is not more -12dB The level of cross-polarization, not more -25dB Input impedance, Ohm 50 The CWS in the range of GSM 1800, nothing more 1.6 The CWS in the range of 3G/4G/WIFI, not more 1.4 Permissible power watts 50 Polarization vertical/horizontal Mechanical characteristics Weight with mount, g 3195 Mount mast diameter 20-52mm Overall dimensions without mounting, m 0,45х0,45х0,06 Allowable wind speed, m/sec 20 Connector N-female Material of protective box Polycarbonate+ABS Antenna material galvanized steel Fastener material steel Protective coating powder polymeric paint
  7. ,,, you can try this with ALFA AWUS036NH....
  8. ,,, it can be 9 dBi...!!! ,,,but try to rotate the antenna 45 degrees horizontally and change the position in different places...!!!
  9. The antenna (TP-link ANT2409A),has only 6 dBi gain in directivity, try a stronger antenna made by you .. !!!
  10. ,,, the material used for antennas does not have much influence...!!! ,,,usually used galvanized sheet, covered with Rilsan (or a coat of paint)...!!!
  11. After an idea of Vman... Sector Antenna 2442mhz.cst
  12. ,,, it's good, and the other port ... ??? ,,, put the simulation ... !!!
  13. RF Elements StationBox 5 GHz 17 dBi MIMO is a plastic enclosure with integrated MIMO antenna 17 dBi, in which you install cards in the routers. The case is designed to create weatherproof access points that are installed outdoors. Quality ABS plastic material the case provides reliable protection circuit Board router from moisture and sunlight. StationBox can be used at subzero temperatures. StationBox secured with plastic ties that come in the kit. To adjust the case at different angles you can buy a special mount NanoBracket. Built-in antenna 17 dBi designed to operate on the 5 GHz frequency and provides high-speed data transmission technology MIMO. To connect built-in antenna to the router using pigtails (adapters) that are purchased separately. Features Case Weight:372 g Dimensions:19 × 5 × 18.7 cm Material:ABS plastic, UV-stabilized, weatherproof Antenna Frequency:5 GHz Gain:17 dBi Technology:MIMO Compatibility MikroTik:RB411, RB411A, RB411AH, Crossroads Ubiquiti:WISPstation – possible to install 2 PCs, RouterStation, RouterStation Pro
  14. TP-Link CPE510/520 is a 5 GHz outdoor access point similar to Ubiquiti NanoStations. There is also a 2.4 GHz Version of this AP, the TP-Link CPE210/220. The device has a built-in 13 dBi 2x2 dual-polarized directional MIMO antenna with a beamwidth of 45° (H-Plane) and 30° (E-Plane). Installation 1,Connect the TP-Link CPE510 with your computer via ethernet 2,Set the IP address of your computer to 192.168.0.10 with a subnetmask of 255.255.255.0 3,Open your browser, go to https://192.168.0.254 and accept the invalid certificate 4,Log in with user "admin" and password "admin", change the password in the next step 5,Go to the "System" tab and upload the OpenWrt firmware in the "Firmware Update" section and select "Restore" in the dialog promted the filename is limited to a length of 68 characters (as of: "1.3.0 Build 20150612 Rel. 50997", the real limit seems to be 80 characters - including the implicite prefix "C:\fakepath\") 6,Follow official OpenWrt setup instructions (e.g. IP address of the device is now 192.168.1.1)
  15. Operating in the 2,4GHz band, the antenna panel integrates a state-of-the-art, dual-polarized smart antenna that offers blazingly fast and highly reliability connectivity across long distances The reflector is provided with CPC (Compound Parabolic Curve) walls.
  16. 3G feed MiG Offset LTE MIMO 2.1-10 for offset plates are designed for use in conjunction with offset dish satellite antenna. The irradiator is installed in a regular place of attachment of the satellite Converter and gives a powerful gain of up to 28dBi. If Your 4G modem works bad in the country, and low-speed Internet access and a small signal level is not satisfied, then installing 3G LTE 2100 radiator on a plate from a satellite antenna You get reliable reception of the 3G signal at a considerable distance from the base station. "and the MiMo version...
  17. ,,, sorry, but I don't know ... !!!
  18. ,,, I don't know how to do it, I posted something like that before, so there are three -four posts with Antena Nitsa .. !!!
  19. It would be good if this simple version were tested as well....!!!
  20. Below are the usual model of omnidirectional antena for 2,4GHz( Ceiling Mount Antenna)
  21. ,,,no,I think that the director's clearance, it"s not taken into account in the model when calculating...!!!
  22. One of the very common types of antennas are loop antennas "triple square". And this applies not only to television, but to various types of wireless communication — Wi-Fi, 3G etc. Of course, frequency UHF 470 — 862 MHz are lower than Wi-Fi 2.4 GHz, but it is also worth considering. Central plastic stand is a holder for the active vibrator contains a passive antenna and the matching Board: in the form of equivalent half-wave cable loops on single sided PCB: The plastic center column with cable and the Central frame — the active vibrator (square side — 126mm): Rear frame reflector (side of the square — 154 mm) with bottom plastic spacer: Front frame — Director (the side of the square — 108 mm) with plastic spacer: Distance between the rear frame and the Central — 78 mm, and between Central and front — 58 mm. All part of used stainless steel wire diameter 4 mm.
  23. ,,,thanks swarg_eu,can you put these dimensions, please ... !!!
  24. A novel miniature wideband rectangular patch antenna is designed for wireless local area network (WLANs) applications and operating for 2,442-2,6 GHz , and wideband applications. The proposed antenna gives a bandwidth of 2,3 to 2.7 GHz for S11<-10dB. The rectangular patch is easier to make by WiFi enthusiasts...!!! ,,, and an antenna position in the focus of an offset dish 600mm
  25. Wifislax 2017 - a boot disk with a set of tools that will help test your wireless networks, identify and resolve different vulnerabilities in them. Contains a large number of drivers for the network cards from different manufacturers integrated into the Linux kernel and provides their support. Wifislax 2017 – a high level of specialized system-a software tool for security analysis of wired and wireless networks. Is a LiveCD preloaded with Slackware. Can be used for analysis and verification of security systems LANs of different types, the study and evaluation of Wi-Fi networks, as well as in forensic purposes. Wifislax 2017 out of the box comes with a huge number of drivers for network cards, both wired and wireless types, is integrated in the kernel Linux that provides native support for the vast majority of currently available network devices from different manufacturers. Wifislax 2017 is based on a code system of SLACKWARE (in earlier versions of the distribution was used a combination of SLAX and PORTEUS) and can be installed on a hard disk for permanent use. Being a "modular" operating system, it supports the expansion of functionality using the XZM-file. A GUI is provided by three related systems – KDE 4 (installed as default), Xfce and Openbox. In the distribution uses multiple cores – standard and PAE, you can switch between. Running the system with the USB stick: For recording, use the program UNetbootin, he checked, everything works fine. http://foro.seguridadwireless.net/live-wifislax/wifislax64-1-1-final-para-descarga-64220/ Modulos extra para wifislax64-1.1 http://foro.seguridadwireless.net/live-wifislax/modulos-extra-para-wifislax64-1-1/