Find the frequency in (Mhz) on a 20m wavelength of the spectrum. [Don't write the unit it is given in the problem] Your answer
Q: a) Compare E and H in dielectric and well-conducting medium with E and H in empty space. b) How can…
A: (a) Electric field (E) and magnetic field (H) in different mediums - In dielectric medium E and H…
Q: If the directivity of an antenna is 25.5 dB, then what will be the effective aperture of antenna if…
A: The given values of directivity and frequency are:
Q: What circuit Q is required to give a bandwidth of 56 MHz at a frequency of 44 GHz? Round the final…
A: Q factor given by Q= resonance frequency/ bandwidth Here given frequency is 44Ghz Bandwidth =…
Q: An antenna with maximum dimension of 50 cm radiates an RF signal with an operating frequency of 1080…
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Q: 10.21 For a uniform plane wave at 4 GHz, the intrinsic impedance and phase velocity of an unknown…
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Q: An electric field strength of 10 uV/m is to be measured at an observation point 0 500 km from a…
A: Given , E=10uV/m l=500km f=50MHz
Q: Example: Design a log-periodic dipole antenna to cover all the VHF TV channels (starting with 54 MHz…
A:
Q: For the following wavelengths, determine the frequency (assuming free space), the ITU frequency…
A: Given (a) 33 m, (b) 3 cm
Q: A telecom engineer is deploying fiber optic cable at a remote site. He is to determine the…
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Q: A grounded vertical antenna is fed at the bottom by a current (rms) of 32 A. The wavelength of…
A: For a grounded vertical transmitting antenna, the rms electric field can be expressed by the…
Q: A GSM1800 cell tower antenna is transmitting 20W of power in the frequency range of 1840 to 1845MHZ.…
A:
Q: For the following frequencies, determine the free-space wavelength, the ITU frequency band, and…
A: Given (a) 450 MHz, (b) 2 GHz
Q: If the electric field at a far zone point 15 km away from an antenna is 25mV/m, then what is value…
A: Amplitude of the electric field at a distance r away from the transmitting antenna can be expressed…
Q: Calculate the number of elements, length of each element and spacing between the elements of log…
A: Given: The log periodic antenna has the following parameters: f1=70 MHzf2=320 MHzσ=0.132τ=0.762 To…
Q: Q.8.a) What should be the practical implementation length of a half-wave dipole antenna if it is…
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: Example: A beam of light of wavelength 550 nm traveling in air is incident on a slab of transparent…
A: In the above given question we need to calculate the value of index of reflection of the material…
Q: 3. How much power would an antenna (gain = 7dB, f = 200 MHz) absorb from a signal with a %3D field…
A: The solution can be achieved as follows.
Q: An electric field strength of 10 uV/m is to be measured at an observation point 0 = 1/2, 500 km from…
A:
Q: A Horn antenna is radiating at a frequency of 5 GHz and is having an area of cross section of 90…
A: Directive gain of a horn antenna can be expressed as
Q: A monopole antenna is excited using a sinusoidal current distribution. If the antenna is…
A: From frequency, the corresponding wavelength can be computed using the following formula:
Q: Q15/ What will happen if the carrier waves ? haven't been modulated
A: Given : Modulating signal: It is a message signal which is having low frequency component.…
Q: An air filled rectangular waveguide with dimension a = 8.636 cm. b=4.318 cm is fed by a 4 GHz…
A: Wave is function of space and time. The mode at which waveguide have lowest frequency is said to be…
Q: 10. A piece of quarter wavelength transmission line is inserted between a load of 100ohm and another…
A: We need to find out the impedance and length of line
Q: The electromagnetic wave radiated from an antenna of resistance 151 ohms is denoted by the…
A: given signal is amplitude modulated signal s(t)=[Ac+Amcos(2πfmt)]cos(2πfct) after comparing we can…
Q: The signal received by a parabolic antenna is concentrated in its receiver, which is placed,…
A: Communication systems play a major role in connecting peoples, The transmitter is a device where…
Q: 02) If the radiation intensity of the antenna is u(0, 4) = " cos³e (W/sr) c) Caleulate the…
A: Part (c): The mathematical expression for the directivity is given by: D=umaxuavg Here, umax…
Q: nm. The signal is incident p That is the angular separation of these two wavelengths? (
A: Given: λ1=400 nmλ2=500 nmRuling - 180 lines/mm
Q: Q5 B)) Derive the expression of the Bistatic radar equation.
A: Radar equation relates the range of the radar to the characteristics of transmitter , receiver ,…
Q: Show that the directivity of isotropic antenna is 1.
A: Directivity is a very important antenna parameter and it is used to understand how efficiently an…
Q: 2. Why would one need to know the feed point impedance of an antenna? a) To calculate the…
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Q: Show that the field strength at a distance meters from an antenna of gain G radiating power P watts…
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Q: determine the power at carrier of the antenna resistance one ohm (1 2) Write the AM equation with…
A: We need to calculate power at carrier frequency and modulated signal expression
Q: 5. When a power Pt is transmitted by an antenna, amount of energy incident on the target is given by…
A: The correct option along with the explanation is provided in the following section.
Q: The directivity of a half wave dipole is 2.15 dBi. The antenna is operating at 1.78 GHz at an…
A: We need to find out effective area.
Q: phase velocity of the electromagnetic wave in Mm/s (megameters/second)
A: The phase velocity of an electromagnetic wave is defined as the propagation velocity of the…
Q: The directivity of an antenna is 12 dB. What will be the beam solid angle of the antenna? Express…
A: If D is the directivity of an antenna, then the directivity in decibels can be expressed as Here,…
Q: 3. How much power would an antenna (gain = 7dB, f = 200 MHz) absorb from a signal with a field…
A:
Q: An antenna has a total width of 45 cm and total length of 160 cm is designed to radiate at 840 MHz,…
A: Maximum linear dimension of the antenna, D = 160cm = 1.6m Frequency, F = 840Mhz The wavelength is:…
Q: Plot the angular distribution of the radiation intensity from a half-wavelength antenna, expressed…
A:
Q: Question 5: The carrier and modulating frequencies of an FM transmitter are 100 MHz and 15 kHz…
A: The solution is given below
Q: rom this voltage equation: v = 10cos[(500x103)?t] 1. At time t=138 µsec, what is the instantaneous…
A: The voltage equation is: v=10cos[500×103t] (a) t=138μsec=138×10-6 sec: Putting this value of time in…
Q: Assume that the antennas in Problem 2.3 are dish antennas such that A = . If the beamwidth factor…
A: The region where the majority of the power is emitted, which is the peak power, is known as the beam…
Q: If the directivity of an antenna is 12.5 dB when the antenna is transmitting at 5 nm wavelength,…
A: The directivity (D) of an antenna can be expressed as
Q: An antenna has a field pattern given by E(0) = 2sin(0.750) for 0'sos 90. Find a) The half-power…
A: Given Eθ=2sin0.75θ The half-power level occurs at those angles θ for which Eθ=12…
Q: Directivity of an antenna is given as 20 dB. If the antenna is transmitting at 300 MHz, then what…
A: The directivity (D) of an antenna depends on the effective aperture (Ae) of the antenna and their…
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- Directivity of an antenna is given as 20 dB. If the antenna is transmitting at 300 MHz, then what will be the effective aperture of the antenna?The PCB monopole antenna shown in figure below is required to be designed for Bluetooth Low Energy wireless mouse operating at 2.45 GHz. What should be the length of the antenna trace in mm. Assume the substrate of the PCB is foam (dielectric constant = 1)What circuit Q is required to give a bandwidth of 56 MHz at a frequency of 44 GHz? Round the final answer to three decimal places.
- a) Compare E and H in dielectric and well-conducting medium with E and H in empty space.b) How can you absorb electromagnetic waves in the microwave region? Please explain.c) A spacecraft returning to Earth has 1015 m-3 ionized atoms around it and creates a density. Find the plasma frequency accordingly. Determine the cutoff wavelength taking into account communication with the ground station.For the following frequencies, determine the free-space wavelength, the ITU frequency band, and identify an application that typically uses that frequency: (a) 450 MHz, (b) 2 GHzFind the far-field condition of a satellite dish antenna of dimension 60 cm operating at 12 GHz.
- A broadcasting station uses two vertical antennas spaced by (lambda/4) apart and energized by currents of equal amplitude differing in phase by 90 degrees of advance. Determine the expression of the electric field intensity and graph its radiation pattern.Electronic wave theory Microwave ovens operate at a frequency of 2.45 GHz. Since the inner chamber of the furnace is made of stainless steel with σ = 1.2 × 106 S /m and µr= 500 (a) Determine the skin thickness. (b) According to the electric field ?s = 50∟0o ? /m at the surface of the conductor, the magnitude of ?s Draw the change of stainless steel as it progresses.The power emitted at the antenna of a base stationis 50 Watts. At the edge of the cell the signal was said to be 23 dB less. Calculate the power in watts received by a mobile station at the edge of the cell.
- Solve the problem. PROVIDE THE GIVEN, REQUIRED, EQUATION, SOLUTION, AND FINAL ANSWER WAO’s frequency is 85.2 MHz. What does this mean, and what period does this correspond to?An airplane flying in the sky uses an antenna to communicate with air traffic control tower locating 20 km (point-to-point distance) away from the airplane. The antenna has a time-averaged total power of 50 kW and works at the frequency of 118 MHz. Assume the radiation intensity of the antenna is uniform in all directions. Determine the amplitude of the electric field signal received by the control tower.Determine the directivity in dB for an antenna that produces a power density of 10 uW/m2 at a point in space when a reference antenna produces 0.4 uW/m2 at the same point.