Flexible antennas, a future solution for telecommunications?

dicembre 2, 2009 Technology No Commenti


Since years, our mobile phones are no longer sporting those ugly extendable antennas, that needed to be spread out each time you answered the phone, and that had a hard (and often short) life. Nowadays, antennas are concealed within the casing of our phones, and soon we might see, in this field as well as in others, liquid metal flexible antennas.

Those flexible antennas, manufactured with an alloy of indium and gallium which stays in a liquid state, are the subject of a North Carolina State University research.
The alloy is injected inside extremely thin channels, the size of a hair. Once it is in, it forms some sort of skin which holds the alloy in place and allows it to remain liquid.

Thanks to this, antennas are extremely flexible, and since an antenna’s frequency is influenced by its shape, shortening or lengthening them means changing their receiving properties according to one’s need. Along with this feature, which makes it useful for devices already on the market, its high durability makes it ideal for applications where sturdiness is a must, for example in the military field or to monitor the condition of civilian installations such as skyscrapers or bridges.

For example, as we know, bridges stretch and expand with wind, temperature changes or the weight of passing cars. By inserting such an antenna in the right position, it would change its shape according to these factors, and would provide useful information on the bridge’s health.

Currently, the high cost of the gallium-indium alloy makes it possible to foresee its use for this kind of installations, but in a near future we might be able to see them inside our mobile phones or GPS positioning systems.

Invisible earpieces, for the secret agent in each one of us

dicembre 2, 2009 Technology No Commenti


Micro earpieces equipped with Bluetooth are now so small that they can easily be placed in their users’ ear canal, in order to guarantee invisible communication through any Bluetooth mobile phone or a radio.

A spy earphone is a passive type magnet, which receives the audio signal via a transceiver placed on a bracelet or a necklace, or simply hidden in the front pocket of your jacket.

Most of these earpieces are equipped with an equally small microphone, which can be concealed in the clothes you are wearing, in order to pick up the sounds around it and transmit them via radio to a distant listener.

The listener can be even on the other side of the world, if the earpiece and the microphone are teamed up with a GSM watch, that, is, a device which at a first sight looks like a normal watch (and works as such) but conceals a SIM card, just like the one of your ordinary cellphone, on the inside.

Thanks to the Bluetooth connection among different elements of the system, any sounds picked up by the hidden microphone can be transmitted via phone, and in the same fashion you can discreetly and invisibly receive information and instructions, directly on your earpiece.

Thanks to it, agents on a covert mission, police forces in an operation against crime, but even university students struggling with an exam, can stay in touch with a distant listener, who along with being able to hear in real time what goes on, will also be able to provide useful directions, information or news to achieve success of your operation, be it the hunt for a criminal or a tough exam.

Listen to the Caller before answering the call

dicembre 2, 2009 Technology No Commenti

Caller listening identification
“Come on. We are actually giving them supply order at much lower rate. Actually market rate is too high… no firm is ready to supply at these prices.

But then, who cares! Once we stuck a deal with them, let them suffer loses and go to hell, if they want… Ha! Ha! Ha!”

Mr. Foster was astonished to hear that conversation. It turned out to be warning for him before he could actually finalise the deal. This morning when he saw the other firm’s number on his caller ID panel, he was happy that he was pushing forward his business.

Mr. Foster had set up cemented bricks manufacturing firm a year ago. He was a new entrant in this field but did market research before jumping into the business. He started getting enough orders, but was looking for a deal with a major construction company, so that orders get flowing continuously. So he was ready to supply brick to this firm at reduced rate in order to earn goodwill and establish long association.

But, it seems that the motive was different at the other end. Mr. Foster knew how to reply. It saved him a lot of trouble and possible loss from the deal.

He thanked Simul-Tel, a Caller Listening Identification System. This small device enables to listen to voice or comments of the caller before actually answering the call. Surprised? Well that’s the expertise of Endoacustica Europe, a technology firm with spy listening and monitoring solutions.


dicembre: 2009
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Newsletter Endoacustica Europe - ENGLISH


Endoacustica Europe srl
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