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What are the features of helical antenna?
the features are :-1.It has a wide bandwidth2.Easily constructed3.Has real i/p impedence.4.Can produce circularly polarized field.
What is dBic?
Acronym DefinitionDBIG DataBase Intelligence GroupDBig Database Interest GroupDBIG Developmental Biology Interest Group (NIH)DBIG Durban Bat Interest GroupYes it is an acronym, the dB- stands for decibel and the -ic stands for isotropic circular. The unit dBic is something commonly used in antenna design; referring to the gain of an antenna compared to a perfect circularly polarized isotopic source.
What is a polarized semiconductor component?
A: A diode a capacitor even a transistor must be connected to the the power as a polarized components
What are the examples of polarized capacitor?
electrolytic capactior
What is a reconfigurable antenna?
an antenna that is able to be formed, or bent
What are the application of circularly polarized antenna?
RFID reader antennas
Are cross-element Yagi antennas always circularly polarized?
No. They can be circularly polarized with the correct phasing harness, or used as a way to switch between horizontal and vertical polarization with one antenna. No. They can be circularly polarized with the correct phasing harness, or used as a way to switch between horizontal and vertical polarization with one antenna.
Why vertical polarized wave is preferred over horizontal polarized wave in mobile radio communication?
1). Reflection of vertically polarized waves is less efficient, so vertical polarization is less susceptible to multipath fading due to ground-based reflection. 2). In order to avoid directional effects due to the radiation pattern of the receiving antenna (losing the mobile signal when the car turns a corner), the antenna wants to be vertical. That generally means vertical electrical polarization.
What is dual polarized antenna?
Its an antenna that can operate in vertical as well as horizontal polarization. Dual polarized antennas are often used in 802.11n devices to enable multi-thread communication. This enables the device to transmit data on one polarization and receive data on the other simultaniously. The advantage of this is that multi-thread communication can be achieved with the use of one antenna instead of using two independent (and opposite polarized) antennas for the same result. Obviously all the networking equipment in the wireless network must be multi-thread complaint for this to work.
Is a wave length horizontal or vertical?
If you can visualize whipping a length of rope tied to a fixed spot back and forth, you can then perfectly visualize radio frequency waves. If you whip the rope up and down the wave is vertically polarized. If you whip it back and forth horizontally, it is horizontally polarized. If you use a set of "rabbit ears" (dipole) to transmit a signal and hold it so the antenna points up and down, the radiated waves will be vertically polarized. To receive vertically polarized waves best, you need to use a vertically polarized antenna. The same holds true for horizontally polarized systems. This is a very simple but applicable explanation. There are other kinds of polarization such as "circular" as used in FM broadcasting and space communications. Just remember that the transmitting antenna's design determines the polarization of a radiated wave. See the ARRL Handbook 621.384 in your library for more detail.
Does an ungrounded antenna near the ground act like a single antenna with twice the height?
A better simple approximation would be two antennas separated by twice the distance of the single antenna to the ground.
Are light waves that oscillate only in a single plane polarized or unplaced?
'Polarised'.
What are the features of helical antenna?
the features are :-1.It has a wide bandwidth2.Easily constructed3.Has real i/p impedence.4.Can produce circularly polarized field.
What does Polarized light vibrates in?
For plane polarized light the electric vector of the light ray is allowed to vibrate in a single plane, producing a simple sine wave with a vibration direction lying in the plane of polarization - this is termed plane light or plane polarized light.
When is an antenna a communications tower?
a communications tower has multiple antenna's (usually for multiple communications systems and net works) and is much higher than just a single antenna
What is cross polarised antenna?
Its an antenna that can operate in vertical as well as horizontal polarization. Dual polarized antennas are often used in 802.11n devices to enable multi-thread communication. This enables the device to transmit data on one polarization and receive data on the other simultaniously. The advantage of this is that multi-thread communication can be achieved with the use of one antenna instead of using two independent (and opposite polarized) antennas for the same result. Obviously all the networking equipment in the wireless network must be multi-thread complaint for this to work.
A directional antenna issues wireless signals along direction?
the correct answer is single direction
