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Radiation from an antenna can be blocked by using a simple sheet of conducting material. Aluminum foil would work. But you'd have to set things up so whatever it is you are shielding is completely in the electromagnetic shadow of the antenna. Metal screen would work, too, but you'd have to make some calculations as regards the frequency of the radiation you wish to block and the size of the openings in the screen. You can see the items in your microwave heating up, but the radiation can't get out. Same principle.
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What is the Radiation pattern of loop antenna?
cardioids
What is a reconfigurable antenna?
an antenna that is able to be formed, or bent
Can you replace an XM radio antenna with any other antenna like a 3ft hard cb antenna?
You can replace an XM radio antenna with a CB antenna, a ham 40-meter mobile antenna, a cellphone antenna, a GPS antenna, a TV antenna, a wire coat hanger, a 6 GHz microwave antenna, or a chain of paperclips. However, since none of them is optimized to operate at the frequencies of XM radio, like the XM antenna is, none of the others will work as well. Most of them will likely be so inefficient at the satellite radio frequencies that when you use one of those, you hear nothing at all on your radio.
What is microstrip patch array antenna?
microstip patch array antenna is basically ,thecollection of antenna that give the double directive gain
Is end fire array antenna non resonant antenna?
yes
What is Polar Radiation?
This will be a map of the radiation pattern of an antenna.
Block diagram of microwave communication link?
Transmitter => Antenna =========> Antenna => Receiver Receiver <=== Antenna <========= Antenna <= Transmitter
What is the Radiation pattern of loop antenna?
cardioids
What can transformation can occur in a radio antenna?
The radio antenna converts electromagnetic radiation to electrical energy
How does a smart antenna work?
A smart antenna is used to identify signal signature and to track an antenna beam on the target. Some are for beamforming which is used to create the radiation pattern of the antenna.
Radiation resistance of quarter wave monopole antenna is?
The radiation resistance of quarter wave monopole is 36.5 ohms
What is the value of radiation resistance of half wavelength dipole antenna?
36 ohm
Difference between isotropic antenna and omnidirectional antenna?
The isotropicantenna by definition has a radiation pattern that is a perfect sphere. The omni driectional antenna is characterized by a radiation pattern resembling a doughnut.
What is radiation pattern for an antenna?
Radiation pattern is just a map of how the strength of the signal varies around (transmitting) antennas. For some, like a simple whip antenna, the patttern too is quite simple. For directional antennas they can be quite complicated.
How much concrete is needed to block nuclear radiation?
My Astronomy professor says that we need at least 15 feet of concrete to block nuclear radiation.
Advantages of omni directional antenna?
can transmit in all directions with a donut shaped radiation pattern.
The directive gain of antenna is given by?
radiation intensity In a particular direction average radiated power
