Tag Archives: antennas

Kymeta

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Kymeta is working on a wide range of innovative and highly competitive products for a broad spectrum of applications. Potential applications and target specifications can be found on each product’s page.

via Products | Kymeta.

From: Metamaterials Surface Antenna Technology

mTenna utilizes new reconfigurable antenna technology: Metamaterials Surface Antenna Technology (MSA-T). MSA-T enables wide-angle, all-electronic beam steering from a proprietary, PCB-like surface that can be manufactured using a mature and affordable lithography manufacturing infrastructure.

USB adaptors & DIY antenna = “Poor Man’s WiFi” ?

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Make 2.4GHz parabolic mesh dishes from cheap but sturdy Chinese cookware scoops & a USB WiFi adaptor! The largest so called “WIFRY”,”WOKFI” or “WOKTENNA” (12″= 300mm diam) shows 12-15dB gain (enough for a LOS range extension to 3-5km),costs ~US$5 & comes with a user friendly bamboo handle that suits WLAN fieldwork- if you can handle the curious stares! Neater boutique versions may better appeal indoors. NB-unless you use more powerful USB adapters (such as ALFA & Senao offerings mentioned below),weak USB adapter output power may mean you now hear more stronger APs than you can link back to …

via.  USB adaptors & DIY antenna = “Poor Man’s WiFi” ?

Over-the-Air TV Catches Second Wind, Aided by Web

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There are signs that consumers are responding. TV-antenna seller Richard Schneider of St. Louis says sales at his company are soaring. Mr. Schneider’s Antennas Direct sold 70,000 antennas in January, and he expects to double last year’s sales of about 600,000. That was up from 400,000 antennas in 2010.

via Over-the-Air TV Catches Second Wind, Aided by Web – WSJ.com.

“It’s not a stretch to think that the broadcast business model will outlive that of cable,” said National Association of Broadcasters spokesman Dennis Wharton. “The naysayers can talk all they want about broadcasting being a dinosaur.”

Huawei claims 30Gbps wireless “beyond LTE”

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Huawei says it has “recently introduced…Beyond LTE technology, which significantly increases peak rates to 30Gbps – over 20 times faster than existing commercial LTE networks.”

via iTWire – Huawei claims 30Gbps wireless “beyond LTE”.

However it appears that Huawei is using much greater bandwidth. Its announcement goes on to say: “Key features include: innovative antenna structure [that] greatly improves performance and meets wideband requirements [and] next generation direct radio frequency technology [that] reduces costs and power consumption, and realises ultra broadband carrier aggregation.” (our italics).

The LTE-Advanced specification is for up to 100MHz of bandwidth, which need not be contiguous and up to 8×8 MIMO (eight transmit and eight receive antennas) and a maximum downstream bandwidth of 3.3Gbps.

WiFi Antennas | Selecting a WiFi antenna

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Parabolic or dish antennas

This is where the real power is! Parabolic dish antennas put out tremendous gain but are a little hard to point and make a connection with. As the gain of an antenna increases, the antenna’s radiation pattern decreases until you have a very little window to point or aim your dish correctly. Dish antennas are almost always used for a point to point system for long haul systems. The Parabolic Dish antennas work by focusing the power to a central point and beaming the radio’s signal to a specific area, kind of like the adjustable reflector on a flashlight. These antennas are highly focused and are the perfect tool if you want to send your signal a very long distance.

via WiFi Antennas | Selecting a WiFi antenna.

Dirt Simple Wi-Fi Signal Booster for Free

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Dirt Simple Wi-Fi Signal Booster for Free | Hack N Mod.

You can make this wi-fi parabolic antenna for your router without breaking a sweat.

  • Manila file folders
  • EZ-12 Templates for the antenna from Freeantennas.com
  • Adhesive
  • Aluminum foil

The parabolic antenna is nothing but a focusing device cut out from the stiff manila folder and backed by a layer of aluminum foil on the back for the reflective surface. The exact cutting pattern is aided by the EZ-12 template.

Click here for templates.

Terahertz wireless chip brings 30Gbps networks, subcutaneous scanning

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Rohm, a Japanese semiconductor company, has created a silicon chip and antenna that’s currently capable of transmitting 1.5Gbps, with the potential to scale up to 30Gbps in the future. By comparison, the fastest 802.11 (WiFi) transmission speeds max out at around 150Mbps, and the incoming WiGig standard peaks at 7Gbps.

via Terahertz wireless chip brings 30Gbps networks, subcutaneous scanning | ExtremeTech.