Admin

,,,can someone be interested in something like this///...???

,,, the antenna is not well designed, it needs a stub...

A new small, low-profile and light-weight helical antenna element was designed for 2,1-2,4GHz-band communications. The novelty of the antenna is that its input impedance matching has been improved by adjusting the copper strip matching stub, while its circular polarization performance has been enhanced by changing the parasitic radiation patch loaded in the front of the antenna.

This is my oldest yagi-patch antenna project which I will try to optimize on the 2.442GHz frequency

,,,these would be the results... to see the axial ratio in CST, you should look at "Farfields" section in the simulated results... there should be a drop down list after simulating the design. if you click on that drop down list you should be able to see the axial ratio plot... The default plot is in 3D format, if you want to plot it on polar form, you need to right click on a farfield result and select "Far field plot properties", In the "General" tab select "polar" for the "plot type" and choose the values for "Theta" & "Phi" according to the orientation of your design. Then select "apply" to see the results

Here are some quick notes about the parabolic type dish antennas you might find. The actual antenna is a normal half wave dipole with an integrated balun and is located inside the sealed plastic cover. The mesh screen is the reflector which concentrates the RF energy onto the antenna. That is how dish antennas increase the received or transmitted power level. Also, wireless cable service providers frown upon giving away their used dishes as they think you're going to steal cable service.

Hi buddy...!!!! ,,,what version of CST do you have...??? ,,,can you post the CST file..??

4G antenna BDM-2 is a wave channel with crack initiation, and the delay line is made of sequentially installed disk elements. Compared to the classical antenna BDM , new directional antenna BDM-2 is: More gain; Improved radiation pattern; More stable operating parameters; Greater reliability; Superior mechanical characteristics. Due to the small weight, a small sail and streamlined shapes, the antenna BDM-2 can be used in almost any climatic conditions. And corrosion-resistant materials of the antenna will ensure a long maintenance-free operation even in the marine climate. Specifications 4G/LTE antenna BDM-2: Antenna type Directed Beam width H/V ° 20/20 Frequency range, MHz 2600 MHz Polarization Linear orthogonal Gain, dBi 15-17 DBi depending on frequency of execution The CWS in RAB. the frequency range, not more 1.5 Max. input power,W 50 The weight of the antenna package, gr. 910 Input impedance, Ohm 50 Overall dimensions, mm Ф90 x 500 The operating temperature range, °C -40 .. +60 Performance All-weather, all - Connector (on the case) N-female x2

,,, yes, increase the diameter of the reflector (not too much) and increase the number of directors..!!!! ,,after a certain number of directors, the gain does not increase so much..!!!

,,, these would be the dimensions... ,,,and this is the CST file....!!! vivaldi rus.cst

I don't think this so-called Vivaldi dipole is very good...

,,,something like this... 2021213791.pdf

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.

,,,hi buddy...!!! ,,,from where did you get this Vivaldi antenna( you simulated something like that...???)..??? ,,,maybe this will help you...!!! https://www.changpuak.ch/electronics/Antipodal_Vivaldi_Antenna_Designer.php

,,,yes, both the central connector and the Teflon insulation can be shortened...!!!

,,,I considered it sensible to resume Aurel's idea from the beginning and to present a version of the Batwing wire antenna...

Two long arms are connected in the shape of V to make a V-antenna. The two long arms are excited with 180˚ out of phase. As the length of these arms increases, the gain and directivity also increases. The following figure shows a V-antenna with the transmission line impedance z=200 Ohm and the lengh of the arm 0,8*lambda, making an angle Φm with the axis, which is called as apex angle.material-FR4 #1.5mm. The main advantage of a V-shaped antenna is its relatively small vertical radiation angle, which is especially important for establishing long-distance communications.

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).

Putting your phone You are giving the opportunity to the Manager in touch with you for the purchase: access Point wifi Ubiquiti NanoBridge M2 (NBM2)

Here is another DIY antenna, this time for GSM/3G/4G usage. The design was calculated for 800-2100MHz and works well in this range. The antenna has a very broad bandwidth with a low gain and can be used for any application within the frequency range. Since the results are very good even up to 3GHz the antenna is also useful for WiFi. As well as ADS-B (flight radar) because 1090MHz is covered too. In general an excellent antenna for rtl-sdr operations. Based on this calculator.

Name and model: Alfa Network 1000mW AWUS036H Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: The adapter No. 1 for audits, especially reinjecting in monitor mode in windows technology B / G is becoming obsolete, somewhat unstable in navigation. Possibility of using high power application alfatools accepts promiscuous mode. WIRELESS SECURITY RECOMMENDED for use in monitor mode. Name and model: Alfa Network AWUS036NH Chipset: Ralink RT3070 monitor and reinjection mode: Yes, Data and specifications Notes: After the previous model, it is the second best choice for monitor mode. Has many supporters as detractors, saturated environments was somewhat unstable in navigation, supports standard N Name and model: Alfa Network AWUS036NHA Chipset: Atheros AR9271 monitor and reinjection mode: Yes, Data and specifications Remarks: Connector for exchange or connect more gain antennas, standard IEEE 802.11b / g / n with a transmission capacity of 150 Mbps data Somewhat less powerful than the two previous models to monitor alpha mode, but more sensitive and stable her sisters to navegar.En new models have replaced the atheros chipset AR9271L. Name and model: WNDB-ANT Connection Dual Band Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Comments: Very good adapter and monitor navigation mode, the option to use 5 Ghz makes it much more versatile than any other adapter, external antenna connector for 2.4 GHz and integrated antenna for use in 5Ghz. Name and model: Signal King N 360000 Chipset: Ralink RT3070 monitor and reinjection mode: Yes, Data and specifications Observations: RPSMA connector to exchange antennas different model and gain Name and model: Startech USB300WN2X2D Chipset: Ralink RT3572l monitor and reinjection mode: Yes, Data and specifications Comments: Very good adapter 2 connectors antena.Doble 300 mbps.Mimo2T2R band. Name and model: TP-LINK TL-WN722N Chipset: Atheros AR9271 monitor and reinjection mode: Yes, Data and specifications Observations: RPSMA connector to exchange more gain antennas of the best adaptadadores for its relacción quality / cheaper price.The with excellent results, only 100 mw will limit their power in monitor mode. To overcome the above mentioned is advisable to use with antennas direccionales.Tambien is recommended for use with an amplifier. Name and model: ASUS USB-N14 Wireless N-300 Chipset: Ralink RT5372 monitor and reinjection mode: Yes, Data and specifications Comments: Very good adapter at an unbeatable price, dual-band. Name and model: WNDB-ANT Connection Dual Band Chipset: Ralink RT3572 And reinjection monitor mode: If, Data and specifications Notes: The option to use 5 Ghz makes it versatile. 2 external connector 5 dBi antennas to use in both frequencies, the power adapter is minimal. Name and model: Alfa AWUS036NEH Chipset: Ralink 3070 monitor and reinjection mode: Yes, Data and specifications Observations: threaded external antenna rp-sma Name and model: Connection WANT 15-3W Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Remarks: Good adapter monitor mode, does not give the power of 3 watts advertised, high-gain omnidirectional antenna. Name and model: Connection WANT9-2W Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Observations: Connector to exchange more gain antennas incorporates omnidirectional antenna 9 dBi .No gives 2 watts of power advertised. Good performance in monitor mode. Name and model: Wifiscan WS2024e Chipset: Ralink RT3070 monitor and reinjection mode: Yes, Data and specifications Observations: AIO adapter + directional antenna 14 dBi gain Name and model: Wifiscan 2000mw / 6dbi Chipset: Ralink RT3070 monitor and reinjection mode: Yes, Data and specifications Observations: Aerial 6 dBi antennas RPSMA connector to exchange more profit. Name and model: TP-LINK TL-WN727N Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Remarks: internal antenna. Name and model: Alfa Network 500mW Wireless USB Adapter AWUS050NH Chipset: Ralink RT2770 monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector. Name and model: Alfa Network AWUS036NHR Chipset: Realtek RTL8188RU And reinjection monitor mode: If, Data and specifications Notes: RPSMA connector to exchange antennas. Audita well only medium distances. Not recommended for use in monitor mode. There is a version v2 Name and model: Érize ERZW54-USB04RS300 Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector, it supports promiscuous mode, possibility of using high power application alfatools Name and model: Érize ERZW54-USB03H1W Chipset: Ralink 2571 w monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector. Name and model: kasens 2000 mw Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector, posiblilidad alfatools application using the high power driver supports promiscuous mode. Model name: Edimax EW-7711USn Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector to exchange more gain antennas. Name and model: TP-LINK tl-wn422gc Chipset: Atheros AR9271 monitor and reinjection mode: Yes, Data and specifications Observations: connector for exchanging different antennas profits. Good choice quality, price Name and model: TP-Link TP-WN321G v4.1 Chipset: Ralink RT2870 monitor and reinjection mode: Yes, Data and specifications Observations: a little deaf. 100mW. without antenna, MOD. Name and model: TP-Link TL-WN422G USB 802.11g 100mW Chipset: Zydas zd1211rw monitor and reinjection mode: Yes, Data and specifications Remarks: supports promiscuous mode. There is another similar model but without external antenna, the TP-LINK TL-WN322G .Del TP-Link TL-WN422G-there are two versions v1 has the zydas zd1211rw chipset and Atheros AR9271 v2 Name and model TP-Link TL-WN321G Ralink RT73 chipset monitor and reinjection mode If, Data and specifications Remarks: internal antenna Name and model: Érize ERZW54-USB04RS1W Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Notes: works perfectly in both managed and monitor mode. I do not know if the application alfatools sevira also for erice 1w, accepts promiscuous mode. Name and model: Érize ERZW54-USB04RS800 (800 mw) Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Observations: I think that is the twin brother of gold 800mw externally, sensitivity is higher in the gold 800mw, supports promiscuous mode. Name and model: WIFLY-CITY 1500MW 20G Chipset: Realtek 8187 L monitor and reinjection mode: Data and specifications Observations: economic Adapter (14 €) connector sma, configurable antenna with alfatools, configurable with the driver and utility of Alfa 1w, internal heat sink. Name and model: WIFISKY 1000 mw Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector, high sensitivity, supports promiscuous mode, possibility of using high alfatools chipset power application Name and model: HIGH POWER 500mw USB LAN CARD Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector, it supports promiscuous mode, ability to use the application alfatools high power driver Name and model: freewifilink FL2016G 1000 mw Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Notes: Known as Black Dragon, external antenna connector, it supports promiscuous mode, possibility of using high alfatools power application

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)

Compact sector antenna WiFi Ubiquiti airMax Sector 5G 17-90 designed for installation where the placement of a full-sized devices is not possible or desirable. This WiFi antenna is almost twice shorter than the "large" Sector airMax and weighs just over 1 kg. Despite its modest dimensions, the device has retained all the key characteristics of the family of these WiFi antennas. Ubiquiti airMax Sector 5G 17-90 has the gain of 17 dBi and a wide sweep of 90°. WiFi antenna mounts to wall or post by means of special fastenings.