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The concept is, greater the frequency less will be the size of antenna and weight. For example the Mobile Phone uses the half wave dipoles antenna. There is no exact formula for calculating these antennas. The problem is that there are several factors that affect the antenna. Fortunately there is a starting formula for these types of antennas. For center fed, wire dipole antennas, the formula is length of antenna = 468/freq (MHz). Mobile phone in GSM working on the frequencies 900 MHz and 1800 MHz so put the values in the formula you get your answer. If you move further in the frequency band the size will be more small.
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Why low pass filters are required in demodulation process?
Demodulation takes place to extract the low-frequency signal from the high-frequency carrier, using a nonlinear process that produces components at the signal frequency. The LP filter is used to eliminate the high-frequency carrier component from the signal so that it does not cause problems at a later stage in the amplification of the signal.
What is baritt diode?
It is a barrier-injection transit-time, a high frequency - semi - structural element of micro-electronics, as the diode is one of the electronic components.
How do you convert low frequency to high frequency with a circuit?
You typically create a DC power supply from the low frequency, and use that to run a high frequency oscillator and amplifier. If there needs to be a relationship between frequency in and frequency out, often there is a divider running on the high frequency side in combination with a phase locked loop synching up to the low frequency side.
What is the function of a filter capacitor?
This seems like a question from an electrical course, and is probably best answered by your course materials. It's your test question, not ours, and there won't always be someone to ask the answer of. Earn your diploma.
What is a high end frequency scanner?
A: It is a terminology to imply that the scanner will be used at the hi end of frequency as opposed to low frequency
Why high frequency component resolved in time than low frequency component?
High frequency components are resolved in time more quickly because they oscillate more rapidly, resulting in shorter time periods for a complete cycle. Low frequency components oscillate more slowly, requiring longer time intervals to capture their full cycle. This is why high frequency components appear to change more rapidly over time compared to low frequency components.
What is convolution of a signal?
the convolution of a signal is to filter the components of the signal. The convolution does not mean the masking. Masking means it is going to remove all the masked components(both high and low frequency components).But convolution is going to remove any one (either low r high frequency) depending upon the filter response.
What does high frequency resolution mean?
High frequency resolution refers to the ability to distinguish between closely spaced frequency components in a signal or spectrum. It indicates the smallest frequency difference that can be detected or resolved by a measuring or analyzing system. A system with high frequency resolution would be able to distinguish between two frequencies that are very close to each other.
Give the difference between LPF and HPF?
LPF is a low pass LTI filter which passes the low frequency signals and reduce the amplitude of the signals with frequencies higher than the cutoff frequency. HPF is high pass LTI filter which passes the high frequencies and reduce the amplitude of the frequencies lower than filter's cutoff frequency.
How would your weight be affected if you climb to the top of Mt. Everest?
your weight will reduce as you go into high altitudes
How would you eliminate the high frequency noise in integrator?
To eliminate high frequency noise in an integrator, you can use a low-pass filter at the input of the integrator to block high frequency signals. You can also increase the integration time constant to filter out high frequency noise. Additionally, using a precision op-amp with good common-mode rejection can help reduce noise in the integrator circuit.
Am demodulator diode detector circuit?
demodulator circuit is a circuit which is used for remove all high frequency components from modulated signal.
Why low pass filters are required in demodulation process?
Demodulation takes place to extract the low-frequency signal from the high-frequency carrier, using a nonlinear process that produces components at the signal frequency. The LP filter is used to eliminate the high-frequency carrier component from the signal so that it does not cause problems at a later stage in the amplification of the signal.
Can high frequency split water?
Yes, high frequency waves can split water molecules into hydrogen and oxygen gas through a process called water electrolysis. When an electric current is passed through water at high frequencies, the water molecules break apart into their elemental components.
Why RC oscillators are not suitable for high frequency generation?
Because an RC oscillator is affected by stray capacitance in the active components in the circuit. HF oscillators use an LC tuned circuit to define the frequency.
What does the U stand for in UHF?
Ultra high frequency.
What frequency does high energy electromagnetic have?
High energy is high frequency.
