a. A microwave link consists of repeaters at 40 km intervals. What must be the minimum height of transmitting and receiving antennas above ground level (given that they are the same) to ensure line-of-sight condition?

Q: 2. A radar is used for detect a unknown target of a typical radar cross section of 1 m2. Its…

A: given that frequency=8GHztransmitted power=850wattanteena gain G=28dBcross section σ=1m2

Q: Which mode of propagation is used by short wave broadcast services having frequency range from a few…

A: A wave of propagation: A wave of propagation is defined as the wave to reach from one medium to…

Q: What are the common problems encountered when using an outdoor antenna? Indoor antenna? What are the…

A: A message signal is transferred from the sender to the receiver end. The signal is transmitted…

Q: Explain the concept of "beamwidth" in antenna design and how it affects signal coverage in wireless…

A: Beamwidth is a fundamental concept in antenna design that describes the angular coverage of an…

Q: Maximum dimension of antenna is 0.5m and operating frequency is 9 GHz, thus the the following…

A:

Q: What is Skip distance? Derive the relationship between critical frequency (fcr) and Skip distance…

A: The objective of the question is to understand the concept of skip distance and derive the…

Q: (iv) A current of 2.5 A (peak value) is driven into a 93% efficient antenna. The resulting power…

A:

Q: Problem 1: Write down the name of each component of the antenna radiation pattern that are indicated…

A: The components of the antenna radiation pattern -  1. Antenna side lobes.   2. Antenna main lobe.

Q: frequency (MUF) for transmission at an angle of incidence of 75° is 20MHz. A) What is the critical…

A: In this question we will find critical frequency and optimum working frequency of transmission....

Q: When the transmitter power is 5W and the communication frequency is 868MHZ, when the transmitter…

A: Transmitter Power, Pt = 5 W Communication Frequency, fc = 868 MHz Tx Antenna Gain, Gt = 1 Rx Antenna…

Q: 4. The extra term for additional attenuation due to urban clutter near the receiving antenna is…

A: The solution along with the explanation is provided in the following section.

Q: Bistatic radar system - transmit and receive antennas at the same location a. FALSE b. TRUE

A: The above statement is true.

Q: If the diameter of a dish antenna is doubled, keeping all other parameters fixed, then how the gain…

A: The gain (G) of a dish antenna depends on the diameter (D) of the dish and the wavelength (λ)of…

Q: (b) Figure Q3. (b) shows a beam antenna consisting of a dipole, a reflector, and a director. Design…

A: Since the user has asked for the solution of the question 3 (b). Hence, we will solve only this…

Q: Increasing the transmitter power of a radar by a factor of 5 will increase the maximum range by what…

A: Given:- PT=Transmitted Power P'T=5PT

Q: Power radiated from an antenna per unit solid angle is called radiation intensity. a. TRUE b. FALSE

A: The above statement is absolutely correct.

Q: Compare between Hertz antennas and Marconi antennas.

A: The explanation is as follows.

Q: What is the spacing (in meter) between the director and the driven element of a 3 element Yagi…

A: Given data Yagi type of antenna is given in the question. Operating frequency of antenna is, f=108…

Q: hen sam cable. - FALS . TRUE

A:

Q: What's the importance of mutual impedance of antenna elements? Please include an application

A:

Q: Name at least two types of antennas commonly used for satellite communications.

A: Satellite antennas: Satellite antennas focus the satellite's sending power into a specific…

Q: For a single wire antenna, explain (in your own wc radiation from this antenna.

A:

Q: 37 Which of the following statements about antenna categories are true? A. Based on frequencies:…

A: Antenna: Antenna is an conductor element which is used as receiver or transmitter of radio wave. It…

Q: Which of the following is not correct about the Hata model for path loss predictions? (A) The model…

A: which one is not correct about the hata model for path loss predictions?Hata model:It is also known…

Q: . Enumerate and discuss the system requirements for a 5G Antenna Systems

A: The system requirement for a 5G Antenna systems is as follows,   When installing the antenna, make…

Q: How high must a receiving antenna be to receive a signal directly from an over-the horizon…

A:

Q: Yagi Uda antenna operates at a frequency of 800 MHz, compute for the length of the director element…

A: This is a good question based on microwave subject of electrical engineering. Have a look at the…

Q: Assuming a constant antenna size, how would the radar beamwidth change if the frequency increases…

A: In this question we need to choose a correct option

Q: (i) Which mode of propagation is used by shortwave broadcast services having frequency range from a…

A: Short wave broadcasting: It is also known as short wave radio transmission or high-frequency…

Q: c) Make a table of these antennas from narrowband to wideband: a) bow-tie antenna, b) helical…

A: Antennas are a part of communication systems. These can be either narrowband or wideband. More data…

Q: For the old “rabbit-ear” style TV antennas, it’s possible to alter the quality of reception…

A: Given:  The reason is shown as:

Q: What are the consequences transmitter and an antenna in wireless communication? of having a…

A: Having a mismatched impedance between a transmitter and an antenna in wireless communication can…

Q: The overall usefulness of an antenna is defined by five fundamental parameters, which are: Tick all…

A: Antenna: Antenna is a structure that transmits the radio waves. Different size and shapes of antenna…

Q: Assume a system has one transmit antenna and two receive antennas. The instantaneous channel…

A: Given: A system has one transmit antenna and two receive antennas.  The instantaneous channel…

Q: What is the wavelength at which commercial microwave ovens operate

A: The wavelength of consumer ovens and commercial ovens are different

Q: 4) What are the methods used to improve the field pattern of the antenna arrays?

A: A message signal is transferred from the sender to the receiver end. The signal is transmitted…