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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...

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

I think this question is given by everyone here I found an article about Wi-Fi , hope for your understanding admins... What is wifi and how to use it (2.4 GHz and 5 GHz.) Wi-Fi (pronounced [Wi-Fi], abbr. Wireless Fidelity — the standard equipment for broadband wireless communication intended for the organization of local wireless networks Wireless LAN. The installation of such networks is recommended where the deployment of the cable system is impossible or economically impractical. Thanks handover users can move between access points throughout the network coverage Wi-Fi without disconnection. Developed by a consortium Wi-Fi Alliance based on IEEE 802.11 standards. Mobility Mobile devices (PDAs and laptops), equipped with a client Wi-Fi receiver-transmitter can connect to a local network and access the Internet via so-called access points or hotspots. The first Wi-fi Wi-Fi was created in 1991 NCR Corporation/AT&T (later Lucent and Agere Systems) in Nieuwegein, the Netherlands. Products, initially for systems and cash services, was brought to market under the name WaveLAN and provided data transfer rate of 1 to 2 Mbit/s. Vic Hayes (Vic Hayes) — the Creator of the Wi-Fi was named "father of Wi-Fi" and was in the team involved in the development of standards such as IEEE 802.11 b, 802.11 a and 802.11 g. In 2003, Vic retired from Agere Systems. Agere Systems are unable to compete on equal terms in difficult market conditions, despite the fact that its products have occupied the niche of cheap Wi-Fi solutions. 802.11 abg all-in-one chipset from Agere (code named: WARP) didn't sell well, and Agere Systems decided to quit the Wi-Fi market in late 2004. Wireless-Fidelity -literally "Wireless Reliability". Wi-Fi: How it works Usually a scheme Wi-Fi network contains one access point (AP). access point) and at least one client. Access point is broadcasting its SSID (eng. Service Set IDentifier, Network name — network identifier, network name) via a special packet, called signaling packets transmitted every 100 MS. Signaling packets are transmitted at the speed of 1 Mbps and have a small size, so they do not affect network performance. Since 1 Mbit/s minimum data transfer rate for Wi-Fi, the client, receive the signal packet, can be sure that I will be able to connect at a speed no less than 1 Mbps. Knowing the parameters of the network (i.e. the SSID), the client can figure out if you can connect to this access point. The program, built-in Wi-Fi card of the client, may also affect the connection. When getting within range of two access points with identical SSID, the software can select between them on the basis of the signal level. Standard Wi-Fi gives the customer complete freedom in the choice of criteria for connection and roaming. This is the advantage of Wi-Fi, although it means that one of the adapters can perform these actions much better than the other. The latest versions of operating systems contain a feature called zero configuration which shows the user all available networks and allows you to switch between them on the fly. This means that roaming is fully controlled by the operating system. Wi-Fi transmits data in the ether, so it has properties similar to non-switched ethernet network, and it can cause the same problems as with a non-switched ethernet networks. Wi-Fi and mobile phones Some believe that Wi-Fi and similar technologies may eventually replace cellular networks such as GSM. Barriers to such developments in the near future are the lack of roaming and authentication features (see 802.1 x, SIM cards and RADIUS), limited frequency range and very limited radius of action Wi-Fi. Looks more correct comparison of Wi-Fi with other networks, such as GSM, UMTS or CDMA. However, the Wi-Fi is ideal for VoIP in corporate networks or in a SOHO environment. The first equipment was available in the early 90s, but had not entered commercial operation until 2005. Then the company Zyxel, UT Starcomm, Samsung, Hitachi and many others introduced on the market VoIP Wi-Fi phones at "reasonable" prices. In 2005 ADSL ISP providers started to offer VoIP services to your customers (for example German ISP XS4All). When calls using VoIP are very cheap and often even free, providers are able to provide VoIP services, had the opportunity to open up a new market of VoIP services. GSM phones with integrated support for Wi-Fi and VoIP have begun to appear on the market, and potentially they can replace phones. At the moment, a direct comparison of the Wi-Fi and cellular networks is impractical. Phones using Wi-Fi only have a very limited range, so deployment of such networks is very expensive. However, the deployment of such networks may be the best solution for local use, for example, in corporate networks. However, devices that support multiple standards can take a significant market share. Commercial use of Wi-Fi Commercial access services based on Wi-Fi is available in places such as Internet cafes, airports, and cafes around the world (normally called Wi-Fi-cafés), but their coverage can be regarded as a point compared with the cellular networks: • Ozone and OzoneParis In France. In September 2003, Ozone started deploying the OzoneParis network across The City of Lights. The ultimate goal is the creation of a centralized Wi-Fi network that can cover your Paris. The basic principle of Ozone Pervasive Network is that this network on a national scale. • WiSE Technologies provides commercial access in airports, universities, and independent cafes in the U.S.; • T-Mobile provides hotspots for Starbucks in the US and the UK, as well as more than 7500 hotspots in Germany; • Pacific Century Cyberworks provides access to the Pacific Coffee stores in Hong Kong; • Columbia Rural Electric Association is trying to deploy a network of 2.4 GHz Wi-Fi on an area of 9,500 km?, located between counties Walla-Walla and the Columbia in Washington state and Umatilla, Oregon; To the list of other major networks in the US are: Boingo, Wayport and iPass; • Sify, an Indian Internet service provider, has installed 120 access points in Bangalore, in hotels, galleries and government institutions. • Vex has a large network of hotspots located throughout Brazil. Telefónica Speedy Wi-Fi began providing its services in a new growing network that has spread to the territory of the state of Sao Paulo. • BT Openzone owns many hotspots in the UK, working in McDonald's, and has a roaming agreement with T-Mobile UK and ReadyToSurf. Their clients also have access to The Cloud hotspots. • Netstop provides access to New Zealand. • The company Golden Telecom provides support for municipal Wi-Fi network in Moscow, and also provides communication channels for the project Yandex.Wi-Fi ([2]). • EarthLink plans in the third quarter of 2007 to fully connect Philadelphia (USA) to the wireless Internet. This will be the first city-metropolis in the USA which is fully covered by Wi-Fi. The cost will be around 20-22 dollars a month at connection speed of 1 Mbit/sec. For low-income residents of Philadelphia cost would be 12-15 dollars a month. Currently, the city centre and surrounding areas are already connected. Connect the other regions will be made as the installation of transmitters. Wireless technology in industry For use in industry Wi-Fi technology are available while a limited number of suppliers. So Siemens Automation & Drives offers Wi-Fi solutions for their controllers SIMATIC in accordance with the IEEE 802.11 b standard in the free ISM-band 2.4-GHz and providing a maximum transmission speed of 11 Mbit/s. these technologies are mainly used to control moving objects and in warehouse logistics, as well as in cases when for any reason it is impossible to lay a wired Ethernet network. International projects Another business model is to connect existing networks to the new one. The idea is that users will share your frequency response using personal wireless routers completed. For example, FON is a young Spanish company created in November 2005. She intends to become the largest network of hotspots worldwide by the end of 2006 with 30,000 access points. Users are divided into three categories: linus, allocating free access to the Internet; bills, selling your frequency range; and aliens that use access via bills. Thus, the system is similar to peer-to-peer services. Despite the fact that the FON receives financial support from such companies as Google and Skype, only with time it will be clear, will this idea really work. Now this service has three main problems. The first is that for transition of project from initial stage to bulk requires more attention from the public and the media. You also need to consider the fact that the provision of access to your Internet channel to others may be limited by your contract with the ISP. Therefore, the Internet providers will try to protect their interests. The same is likely to come from record companies opposed to the free distribution MP3. And third, the FON software is still in beta stage, and it remains only to wait when will be solved the problem of security.

The device is designed to provide stable access to the Internet via the USB - radio modems in the areas of uncertain reception of a signal of networks 3G (HSDPA/HSUPA/WCDMA2100) and 4G (LTE2600) of any operator. Range of working frequencies, MHz 1700...2700 Gain, dBi 12,5...15 Cable length, m 5 Overall dimensions of the antenna, mm 240x240x20 Overall connectors remover, mm 150х65х35 Set weight, not more, kg 1,5

After an idea of Vman... Sector Antenna 2442mhz.cst

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.

The ANT010PN is a 10dB directional panel antenna, capable of precisely broadcasting a 2.4GHz wireless signal across a great external distance. This antenna comes with its own flush wall-mount for easy installation onto a wall or pole and is fitted with an N-Type socket connector. The ANT010PN is typically used with outdoor wireless equipment such as WiFi Access Points to point a 2.4GHz signal across a longer distance than would normally be feasible to a very specific point, such as a single WiFi client or a second receiving antenna. Solwise Outdoor directional panel antenna 10dBi gain Flush wall mount N type socket connector

,,,see this...

It seems that the antenna with the above dimensions does not fit in the frequency range... ANT010PN.cst

What is this?

,,,,galvanized sheet metal...!

DESIGN OF Printed Dipole with Reflector and Multi Directors PID991189.pdf

This yagi style printed circuit board antenna gives great performance from 2400 to 2450 MHz. This range is commonly used for wireless systems 802.11b/g, RFID systems, satellite dish antennas, dish feeds, and beacons. This can also be easily applied to other hobbyist applications in this range.

Patch antenna ( Patch ANT v.3 ) 50-ohm

This is the simplest type of antenna from a theoretical point of view.

,,,this is the correct positioning of the Bester antenna...

I also tried a version of the Batwing antenna, with small modifications....