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Radio Antennas often work best when the diameter of the antenna is equal to the wavelength of the radio wave Reasonable antennas range from 1 cm to 5 meters in diameter What frequency range does this?
Wiki User
∙ 16y ago
c=wavelength*frequency
f=c/λ
Wiki User
∙ 16y ago
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How far apart should you place the midpoints of the antennas?
half the wavelength of the lowest frequency
What polarization are AM antennas?
It depends on the frequency, not the type of modulation. However, in view of the wavelength of medium waveband transmissions and h.f. transmissions the antennas are always horizontal and therefore so is the polarisation.
Is an antennas length dependent on the frequency used?
Yes.
Maxwell's Laws have the requirement of equilibrium. Why is equilibrium ignored in the application of such laws e.g. fractional wavelength antennas when a wavelength represents equilibrium?
Because of practical considerations. Unit wavelength antennas are usually impractical. Compromises are needed to provide useful solutions.
What is the relationship between frequency and antenna height?
For horizontal antennas operating below 30 MHz the optimum height is half a wavelength, so the height in metres would be 149.9/Frequency in MHz.
Does Heat have shorter wavelengths than visible light?
No. Heat is infrared radiation ("infra" means "lower"). Lower frequency means longer wavelength. All radiation is captured by antennas that resonate at the frequency of the radiation. The "antennas" for visible light are electrons that use the radiation to jump into excited states and cause optical neurons to fire. The "antennas" of heat (infrared) are bigger -- they are molecules that jiggle faster when the radiation hits them. That jiggling is heat.
Why car antennas are as long as TV antennas?
The length of an antenna is based on what frequency it is designed to send or receive. The higher the freq. the shorter the antenna. For instance, cell phone antennas are very short while AM radio antennas are long. CB antennas are 18 feet long but there are many exceptions where people have tried to design shorter versions that will still work well.
What types of products does the Wilson's Antennas company offer to consumers?
Wilson's Antennas company offers the highest performing CB Antennas to customers. This includes Base Load Antennas, Trucker Antennas and Fiberglass Antennas.
Do millipedes have antennas?
no,they do not have any antennas
Does every insect have antennas?
Yes.Every insect does have antennas.
In wireless communication to exchange information two antennas must be tuned to the same?
frequency
What are antennas made of?
Antennas can be made of various materials, with common ones being metal, such as aluminum or copper. The choice of material depends on the frequency and desired characteristics of the antenna. Additionally, antennas may also contain non-metallic components like plastic or ceramic for structural support or insulation.
