2. PLEASE CLICK HERE
Above is a great introductory video into the evolution of radio waves from the
company Agilent Technologies producing state of the art radio generators.
The following presentation explores the use of radio waves every day, and new
innovative technology incorporating radio waves…
3. USES OF RADIO WAVES
The prime purpose of radio is to
Long-range radio signals enable
convey information from one
astronauts to communicate with
place to another through
the earth from the moon and
intervening objects such as
carry information from space
buildings, without wires.
probes as they travel to distant
planets.
Besides being used for
transmitting sound and television Some celestial bodies emit strong
signals, radio is used for the waves that are observed with
transmission of data in coded sensitive radio telescopes.
form. In the form of radar it is
used for sending out signals and
picking up their reflections from
objects in their path.
4. USES OF RADIO WAVES
For navigation of ships and The development of transistor
aircraft the radio range, compass and microelectronic devices led
and time signals are widely used. to the development of portable
Radio signals sent from satellites transmitters and receivers. An
can be used for a precise example of radio transceivers are
indication of position. Digital radio mobile telephones.
provides improved audio clarity
and volume. Many telephones are transferred
by radio instead of wires. Some
routes are sent through the radio
There are various remote-control to get the information from the
devices, including artificial satellites.
satellite systems and automatic
valves in pipelines, that are
activated by radio signals.
5. WIRELESS PHONE
RECHARGING
Nokia researchers are
experimenting with new
Wouldn’t it be cool if you never ways to charge mobile and
had to charge your cell phone wireless devices, cell
again? phones and smartphones.
The researchers are using
ambient radio waves and
have been able to harvest
about 3.5 milliwatts of
power with a prototype,
What if your phone was able to according to the Nokia
stay charged just by collecting corporate blog. The goal is
to eventually collect 50
the radio waves that are already milliwatts of power, which
flying around the air around could fully charge a spent
you. That is the technology that cell phone
Nokia is working on today.
6. OPTICAL SWITCHES
Internet data centers This design combines the
have evolved to include best features of electronics
hundreds of thousands of and optics. Exploiting recent
servers in a single facility. advances in optics, offers
For such large-scale bufferless networks. The
systems, it becomes a optical switch is integrated
great challenge to design with electronic self
an network that provides buffering, and switches at
high capacity, low nanosecond speeds
complexity, low latency
The traditional approach is to build a
and low power
network using switches and routers.
consumption
This approach suffers from limited
scalability in the aspects of power
consumption, wiring and complexity.
The optical switch network supports
direct interconnection of huge number
of server racks and provides switching
capacity at the level of Petabit/s
7. MARKETING PROJECT
APOLLO This new joint venture aims to get
VNU and Nielsen Media Research, has
partnered with Arbitron Inc. On a 70,000 people wearing the pager
marketing research project called “Project sized device in their waking
Apollo”. A portable people meter (PPM), hours. The meters automatically
developed by Arbitron and worn like a
mobile phone, will use radio waves to will pick up on codes in audio
record signals in the broadcast messages delivered through
advertising wearers are exposed to. As television, cable, and radio ads;
with other Nielsen projects, this will rely recorded in-store
on a consumer panel. When members of announcements; and marketing
the panel return from shopping trips, they
on rented or purchased DVDs. It
will scan their purchases with a barcode
reader, and database technology will even intends to cover on-screen
match the messages they received to ads shown while moviegoers
actual purchases. await the feature presentation.
In Project Apollo, messages can be coded at the broadcast level by a
network interested in proving its value to advertisers. At the program
level, coding will help networks price ads around and during popular
shows. And at the commercial level, manufacturer-embedded codes
will deliver feedback about the effectiveness of various
message/media combinations.
8. U.S. MILITARY EXPANDS
RAIDO WAVE TRACKING
The U.S. Department of Defense The massive government agency,
is expanding its use of an which runs the Army, Navy,
emerging technology that Marines and Air Force, has
combines radio waves and recently expanded a multimillion
computer networks to track contract for so-called radio
shipments of military supplies, in frequency identification (RFID)
what some consider the largest technology, according to one of
project of its kind. the military's primary suppliers of
equipment.
This potentially major advance in the field of logistics, gives people the
means to track the movement and location of supplies as well as identify
particular shipments. The way they work is by attaching microchips to an
object, such as a container of ammunition. The chip emits radio waves,
transmitting a unique identification code that can be read by radio
frequency scanning devices in an object's vicinity.
9. RADIO TECHNOLGIES
ALLOW FOR FASTER MRI
SCANS
Researchers from University of
California, University of
Minnesota, and Oxford University
have developed new technology
to speed up how fast neuro fMRI
functions. A single pulse of radio
waves is used to excite
Using echo planar the hydrogen atoms, but
imaging (EPI), fMRI the magnetic fields are
vividly distinguishes rapidly reversed elicit
oxygenated blood about 50 to 100 echoes
funneling into working before the atoms settle
areas of the brain, down. The multiple
from deoxygenated echoes provide a high-
blood in less active resolution picture of the
areas. brain.
10. SPIRAL RADIO WAVES
The bandwidth available Visser says that the work
to mobile phones, digital could also have other useful
television and other applications. For example, he
communication says, radio waves could be
technologies could be used to make a scaled-up
expanded enormously by version of an optical spanner.
exploiting the Conceivably, he says, this
twistedness as well as could allow small toxic or
wavelength of radio radioactive objects to be
waves. Is the claim handled remotely
made by a group of
scientists in Italy and
Sweden, who have
shown how a radio beam
can be twisted, and the
resulting vortex detected
with distant antennas.
