Q. Which of the following gives permissible levels of exposure to radiation in terms of whole body average SAR as per US FCC?

View solution

Q. Human body interaction causes distortions in antenna pattern and health risk in human beings.

View solution

Q. Which of the following is not a concern for antenna tradeoff?

View solution

Q. SPEAK easy aimed to developed a full band antenna that operated over the range ______

View solution

Q. What was the frequency range achieved by SPEAKeasy – 1?

View solution

Q. Which of the following are frequency independent antennas?

View solution

Q. Lower gain antenna reduces link margin and decreases the outage probability proportionally.

View solution

Q. Which of the following option cannot be employed to overcome fading?

View solution

Q. Which of the following can reduce the probability of non-recoverable fade depth?

View solution

Q. Doppler spread is given by _______

View solution

Q. The rule of thumb for antenna diversity states that for an antenna separation of 10 wavelengths or more, there is a considerable probability for the diversity signal to be substantially decorrelated from the primary signal.

View solution

Q. Cellular systems employ ____ sectorization.

View solution

Q. _____ offers fade resistance for slow-moving mobiles.

View solution

Q. Which stage carries out diversity combining?

View solution

Q. ______ combiner picks the diversity channel with maximum received signal strength.

View solution

Q. The increase in demand for DSP resources due to the introduction of diversity can be controlled by _______

View solution

Q. The physical location of the antennas may cause _____

View solution

Q. Military applications resort to channelized architectures due to _____

View solution

Q. Which of the following is not influenced by antenna characteristics?

View solution

Q. Which of the following is not observed due to co-site interference?

View solution