i have a controller that controls the temperature in some dryers, and u can hook an Ethernet cable up to it and then to a computer, to set it and monitor it. the problem is that i need to do this from 200 yards away. so i basically need a wireless Ethernet adapter with a removable antenna. any ideas? by the way im pretty sure that a simple router wont work, but i could be wrong.
I have a Linksys WAP11 router with the stock antennas, no range boosting ones. I used to be able to go next door and have a signal. I go there now and I can’t get a signal anymore. I remember pointing the antennas directly up because they looked weird being crooked. Does the range increase, even by a bit if I point the antenna to where I want to go?
My lab partner once stuck a piece a wire into the back of a NIC on an old klunkering desktop, it worked like an antenna! tried researching this, but i’m not having any luck. Did I just imagine this? Perhaps it was only for the COAXIAL NIC.
I plan on playing my xbox 360 in my basement but there is no cable outlet. The xbox will be right under the router in my office room. How good will the connection be and would getting a 1 antenna or 2 antenna wireless adapter make a difference?
The Venti? Antenna: The Final Piece To The Wireless Puzzle
The wireless world continues its scramble to produce better more efficient power amplifiers and chipsets. In this effort to produce greater throughput for wireless products, there has been one very obvious piece missing: the antenna.
“Throughput can vary by five or ten to one depending on location, suggesting that the most effective way to improve wireless performance is by increasing the useable signal strength while reducing sources of background interference, such as the SNR (signal-to-noise ratio), and the best way to improve this is through better antennas”, explains Kurt Marko in a “WLAN Radio Frequency Technologies” article on Processor.com, Aug. 2010.
The Venti™ Antenna is “the better antenna” that has been missing from the wireless puzzle.
The Venti™ Antenna (http://www.ventiantenna.com) is “an attractive solution” says Dr. Andreas Molisch, World-renowned WiFi/MIMO architect and member of IEEE 802 Standardization Bodies. Dr. Molisch recently conducted a study of the Venti™ Antenna. In his report he wrote, “In WiFi enabled applications, the reception/transmission of the Venti™ Antenna is of great importance, because it provides additional signal energy thus providing higher SNR and better coverage, and by allowing reception of a independently fading signal path. The Venti™ Antenna provides for two signal branches that can be used not only for diversity, but also for spatial multiplexing; for example, different data streams can be transmitted on the two polarization directions.”
The Venti™ Antenna clears the way to superior throughput as this newly developed antenna technology is introduced to the world of wireless communication. Adding to its superior performance, the Venti™ Antenna also provides its advantages for a manufacturing cost of .04 or less, and can be miniaturized to less than 1/4″ in diameter (with a thickness of 20 mil/0.02″/0.5 mm) without trade-off or compromises in overall performance.
Additional technical facts are available at: http://pitch.pe/86285
For more information or a copy of Dr. Molisch’s report, email the Venti™ Antenna at info@ventiantenna.com
Venti™ Group, LLC develops, acquires, owns, licenses and sells key Intellectual Property for use in all wireless technologies. This technology is widely presented for Cell Phones, WiFi, WiMax, Femtocells, Wireless Gaming, Cordless Phones and all other Wireless Communications.
RFID Antenna Design Makes a Difference
If you are thinking about installing an RFID system, the choices may seem daunting. There are many factors to consider such as Location, Coverage Range, and Potential Interference. RFID applications can be as diverse as environmentally sensitive products for Cold Chain Management to large-volume active tracking products for Homeland/Port Security to impact-resistant products for Distribution & Warehousing settings with heavy equipment and obstructed range.
Because Mobile Mark’s expertise lies in the area of RF communications and antennas, this paper will address the antenna requirements for effective RFID systems. Efficient RFID antenna designs will provide optimal coverage, quicker registration of the RFID tag and greater hit-rates for tag reading. The right antenna will save the RFID users time and money by providing more reliable and more accurate reporting.
Frequency: RFID antenna designs operate on a variety of frequencies depending on the application and the location. Current RFID systems include: HF at 13.56 MHz, UHF (or UltraHighFID) at 915 MHz (or 868 MHz in Europe) and RTLS (Real Time Location Systems) at 2.4 GHz. HF applications have been around longer and include applications such as the tagging and tracking of library books. Most UHF applications are newer than HF applications, so there are more unanswered questions as we move through the learning curve. For the sake of focus, this paper will cover RFID Antenna Designs for UHF frequencies.
Orientation of the tags: Polarization is important for optimal signal transfer. Typical wireless network antennas that communicate with each other are installed so that they have the same linear polarization, for example both would be vertically aligned or horizontally aligned. Because it is difficult to know the orientation of the small RFID tags placed on many items, RFID antenna designs that are circularly polarized, rather than linearly polarized, typically provide higher read probability for those important high traffic settings; it easier to get reliable read capture rates with a circularly polarized RFID antenna design when the tags are coming at the reader with all different orientations.
Polarization direction: RFID antenna designs are typically circularly polarized in a particular direction. In the US, the standard configuration is right-hand circularly polarized and in Europe it is left-hand circularly polarized. Manufacturers will generally mark the RFID antenna design as either RHCP or LHCP to indicate the type of polarization. In most applications the actual Circular Polarization direction doesn’t matter since the tags are linear; either RHCP or LHCP will work the same. The exception would be the new CP (Circularly Polarized) tags which do require matching polarization. Check with your RFID Manufacturer to confirm if your reader and tags are consistent with your RFID antenna design.
Gain: Antennas for the RFID Readers are used to direct and shape the RFID signal from the Reader. The antennas are available in different gains, which allow the network installer to optimize the coverage area. RFID antenna designs with higher gain throw the signal further but with a narrower beam; lower gain antennas will provide a rounder coverage pattern. Outdoor installations, such as in a car lot, may require a higher gain antenna but close-in applications, such as tracking items on a conveyer belt, will call for a lower gain antenna. Selecting the right level of gain for the application is important; for example, an RFID reader installed to read packages coming in one dock door should not be reading tags on packages coming in through a neighboring dock door. Because each application is a bit different, RFID manufacturers often certify a variety of antennas for their RFID Readers so that the installer can select the RFID antenna design that best suits the particular application. Typical mid-range applications call for a 6-8 dBi gain antenna but close in applications, such as on a smart shelf might require only unity or up to 3dBi gain. Larger applications, such as in a car lot, might call for an RFID antenna design of 10-12 dBi gain.
Impact on RF performance: RF signals do not penetrate metal and will be reflected when they hit metal. At a minimum, RFID manufacturers will tell you that item level Tags need to be placed on items in such a way that they are not shielded by metal. Other materials, such as water, can also pose an RF problem; it is difficult to read an RFID tag through liquid.
Impact on durability of antenna: Networks that are set up outdoors will need to be designed to handle a range of weather conditions. This may include large swings in temperature, or resisting moisture damage. Most RFID manufacturers will provide detailed installation instructions with pointers such as “don’t cover drain holes”. These are important guideline; understanding how the antenna should be installed will go a long way towards eliminating problems down the road.
Unusual settings: Every installation is unique but some settings pose more challenges than others. The Fork Lift setting, for example, provides ample challenges for RFID antenna design; the all-metal construction blocks efficient signal transfer while not providing enough backing for a solid ground plane. Look for an RFID antenna design with sufficient shielding and with mounting solution that allows the antenna to be mounted to the load back rest of a forklift truck for palletized scanning.
Another challenging setting involves tracking items that are removed from and replaced in fixed locations such as a retail display or production conveyor belt. The RFID antenna design referenced as a “Near Field Loop” offers maximum power density in close proximity to the antenna. The read range for this style antenna is tag dependent but is typically up to 3 feet. The high forward directivity of the Near Field Loop Antenna combined with extreme isolation adjacent to the antenna results in fewer instances of misread tags.
Sensor: Some RFID antenna designs feature an antenna present sensing circuit, detecting a 10K ohm resistance or DC Short. Some Antenna Manufacturers offer this as a standard feature on all of their RFID Reader antenna designs.
Connections: It is important to know which connector is used as the RFID reader termination. Check with the manufacturer, or the spec sheet, to see which connector is built into the RFID reader. The connector on the Reader will need to mate with the connector on the Antenna. Some RFID Antenna designs will build the mating connector directly onto the antenna; others antenna designs will put the connector onto a cable pigtail exiting from the RFID Reader.
Useful accessories: An RFID antenna design that features a built-in connector will typically require a jumper cable assembly for final installation. These cable assemblies and other useful accessories are often provided by the RFID manufacturers or by many antenna manufacturers. Jumper cables allow the antenna to be positioned further from the RFID reader which increases the variety of installations possible.
About Mobile Mark, Inc.:
Mobile Mark, Inc. designs and manufactures site, mobile and device antenna for 600 MHz – 9 GHz. Applications include GPS Tracking & Fleet Management, Cellular GSM/CDMA, LTE, WiMAX, WiFi, RFID, Public Safety, Military and Machine-to-Machine (M2M). Engineering and custom design services available. Mobile Mark’s global headquarters, which include research facilities and manufacturing plant, are located near Chicago, IL. An additional manufacturing and sales facility is located near Birmingham, UK.
RFID Antenna Designs by Mobile Mark are used by manufacturers and installer throughout the US and Europe. Complete information on the variety of RFID Antenna Designcan be found on the Mobile Mark website.
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Is there an easy way to get an antenna to work on it ?
I bought another cheap external modem with an antenna and that doesnt work as well as the stock Dell internal wireless.
I will have to google a repeater. Dont know what that is.
Thanks.
Maybe I should have mentioned..the intent is to parasite non secure signals when camping or on the road.
The library next to my apartment complex has free wireless internet, but no matter where I stand in my apartment the signal is low. Is there anything I can buy to make my laptop get better wireless signals from a distance? Is there better wireless cards or an antenna?
Know About Major Types of Wireless Router Antenna
A wireless router antenna is usually found in the international airport, educational campus or nowadays, is common to be seen in cafes as well. The wireless network is enabled by the router which will transport data from one computer to another or to other networks. The router is the connecter to link two or more computers together disregard of their positions. If you intend to buy a wireless router, you should first understand the types of router available, the different models and their specifications. The company producing high-performance routers is D-Link. Other famous manufacturers include Belkin, Linksys, and Netgear.
Basically there are two types of router antennas; namely the basics and range extender. For the basic type, it also branched into two. The omni-directional antenna can enhance the signal a bit higher for all directions and is great to be used as a Wi-Fi provider in a café or to provide internet access in the office or a home. The wireless devices can be used throughout the entire house. Another type is the directional antenna where it is used to broadcast an extremely strong signal in one direction. This is not recommended as they can only provide access on one side of the building. Although the omni-directional antennas are not as powerful as the directional type as the signals have wider distribution, the directional wireless router antenna should be sufficient to be used in a house where only a specific direction can gain access.
The range extender is actually a directional antenna. The only distinctive difference between such antennas and the above mentioned types is that it can be applied to both the omni-directional and directional antennas. It can also be used along with your existing antenna. It utilizes the concept of a mirror, although other aspects are similar to the usual antenna. However, such router antennas product signals that would bounce-off then the range extender will shoot them back on a higher frequency. For instance, if you wish to provide free Wi-Fi access not only to your customers but to areas beyond your restaurant, the range extender is the best option as it is capable of sending signals up to three miles.
Dennis enjoys writing on wide range of topics such as router antennas and wireless router antenna. You may visit for more details.
I have no idea what kind of antenna it is, so please, a link would be truly appreciated!
