Question
1. The centre frequency is determined by the pitch of IDT comb shaped electrodes
2. The response can be modified shaping the overlap of comb electrodes
3. The response is maximum when acoustic wave has its wavelength equal to pitch
4. When a number of identical electrodes are arranged at the same pitch, the frequency characteristics of the filter is expressed by (sin x)/x
Which of the above statements are correct?
a.
1, 2, 3, 4
b.
1, 2, 3 only
c.
1, 2, 4 only
d.
2, 3, 4 only
Posted under Electronics and Communication Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Consider the following statements as regards SAW filter 1. The centre frequency is determined by the pitch of IDT comb shaped electrodes 2. The response can be modified...
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. In telephone, the dial tone has a frequency of
View solution
Q. Companding is used
View solution
Q. For a good public address system the sound intensity at the farthest point should be at least
View solution
Q. An ungrounded antenna near the ground
View solution
Q. Reception through space wave is limited to line of sight distance.
View solution
Q. A video transmission system transmits 625 picture frames per second. Each frame consist of a 400 x 400 pixel grid with 64 intensity levels per pixel. The data rate of the system is
View solution
Q. Which of the following is a false statement about Armstrong modulation system?
View solution
Q. Which one is digital modulation technique?
View solution
Q. Since noise phase modulated FM wave, as the noise sideband frequency approaches the carrier frequency, the noise amplitude
View solution
Q. Consider the following statements as regards DPSK and DEPSK
1. DPSK demodulator requires a device which operates at carrier frequency and provides a delay of bit time Tb
2. In DPSK, synchronous demodulation recovers the signal b(t) and the decoding of b(t) to generate d(t) is done at base band
3. In both DPSK and DEPSK errors always occur in pairs
Which of the above statements are correct?
View solution
Q. An audio frequency of 5 kHz is translated to a radio frequency carrier of frequency 1 MHz and transmitted it to space through an antenna. The required height of antenna is
View solution
Q. Pre-emphasis circuit is used
View solution
Q. In which frequency range is the noise figure in a transistor minimum
View solution
Q. In commercial FM Broadcasting, A radio station transmitting the signal at 98.3 MHz, it is
View solution
Q. Which of following digital modulation technique?
View solution
Q. A discrete zero memory information source has 40 symbols and each symbol is equally likely. The minimum number of bits required to code the source with uniform length code and entropy of the source are
View solution
Q. The standard intermediate frequency for FM ratio is
View solution
Q. In an end fire array, the radiation pattern
View solution
Q. Armstrong FM transmitter uses
View solution
Q. Which of the following microphones has highest output impedance?
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
