Antenna projects

  

Typically an antenna consists of an arrangement of metallic conductors (or "elements") with an electrical connection (often through a transmission line) to the receiver or transmitter. A current forced through such a conductor by a radio transmitter will create an alternating magnetic field according to Ampère's law.

Or the alternating magnetic field due to a distant radio transmitter will induce a voltage at the antenna terminals, according to Faraday's law, which is connected to the input of a receiver.  But it is only through antennas that those radio frequency electrical signals are converted to (and from) propagating radio waves.
 
Depending on the design of the antenna, radio waves can be sent toward and received from all directions ("omnidirectional"), whereas a directional or beam antenna is designed to operate in a particular direction. In the so-called far field, at a considerable distance away from the antenna, the oscillating magnetic field is coupled with a similarly oscillating electric field; together these define an electromagnetic wave which is capable of propagating great distances.
 
 Light is one example of electromagnetic radiation, along with infrared and x-rays, while radio waves differ only in their much lower frequency (and much longer wavelength). Electronic circuits can operate at these lower frequencies, processing radio signals conducted through wires.
 

 

 

News

Pay TV loses ground to antenna-only households

CNET Pay TV loses ground to antenna -only households CNET Brett Sappington, senior director of research at Parks Associates, notes in a blog post that "live broadcasts of high-profile events remain a challenge...

Jan 18, 2017

Report: Antenna Only Homes Increase to 15 Percent | TvTechnology

Rapid TV News Report: Antenna Only Homes Increase to 15 Percent | TvTechnology TV Technology While we're certainly no longer in the days where people had a pair of rabbit ears on top of their TV sets, the use of...

Jan 19, 2017

CES 2017: Can a Self-Steering Antenna Fix Both Wi-Fi and TV ...

IEEE Spectrum CES 2017: Can a Self-Steering Antenna Fix Both Wi-Fi and TV ... IEEE Spectrum CES 2017 wasn't the show of the shiny new product. Wearables drew yawns, TV manufacturers spent more time talking about...

Jan 17, 2017

Antenna Technology Continues Fast Evolution

Antenna Technology Continues Fast Evolution - IT Business Edge IT Business Edge (blog) Antennas will play a huge role in the growth of the IoT as growth demands more antennas in smaller spaces, at lower costs, with...

Jan 18, 2017

ANTENNA ADVICE: How to get WILX signal over the air

ANTENNA ADVICE: How to get WILX signal over the air WILX-TV One thing to keep in mind; WILX broadcasts on the VHF frequency, and many antennas (particularly indoor models that are small or that resemble a cable box,...

Jan 17, 2017

For cord cutters, 2017 will be the year of the antenna

TechHive For cord cutters, 2017 will be the year of the antenna TechHive The broadcaster failed to secure those rights from the producer, so unless you had cable, the only way to watch the broadcast was through an...

Jan 12, 2017

Introducing The V-Thinity, an innovative in-building public safety ...

Introducing The V-Thinity, an innovative in-building public safety ... EIN News (press release) Pulse Larsen Wireless Infrastructure is pleased to announce the launch of the V-Thinity series of in-building public safety DAS...

Jan 20, 2017

Where's my KCBS? Rain damages antenna

OCRegister Where's my KCBS? Rain damages antenna OCRegister Last Thursday, the rainstorm damaged the station's antenna on Mount Wilson. Programming is being broadcast over-the-air at a reduced capacity...

Jan 18, 2017

Mobile Communication Antenna Market Forecast to Reach USD 47.46 Billion by 2021: Technavio

Yahoo Finance Mobile Communication Antenna Market Forecast to Reach USD 47.46 Billion by 2021: Technavio Yahoo Finance In this report, Technavio covers the market outlook and growth prospects of the global mobile...

Jan 18, 2017

Our Telekom Increases O3b Antenna Size, Boosting Maximum Fiber-equivalent Throughput Capabilities

Our Telekom Increases O3b Antenna Size, Boosting Maximum Fiber-equivalent Throughput Capabilities Yahoo Finance O3b Networks today announced customer Solomon Telekom Company Limited, trading under the name Our Telekom,...

Jan 16, 2017

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