certain antenna has a gain of 7 dB with respect to an isotropic radiator. (a) what is the effective area if it operates at 20 GHz? (b) How much power would it absorb from a signal with field strength of 50 μV/m?

Q: 3. A rectangular waveguide is made of a brass with sigma_c = 1.57 x 10^7 (S/m). The dimensions are…

A: Given  sigma_c=1.57*107S/m  Dimensions=1.5cm*0.6cm  tan delta=0.0004  epsilon_r=0.25…

Q: A shirt vertical grounded antenna is designed to radiate at 10 MHz. What will be radiation…

A: Radiation resistance is a fictitious resistance. When an antenna radiates, the total power radiated…

Q: An antenna has a gain of 7.425DB at 300MHZ. Find the area and the radius of this antenna.

A:

Q: b) A particular antenna has a VSWR of 2.4. Determine the following and, in each case, show full…

A: Solution (b) -  Given,The vaule of VSWR for a perticular antenna is,VSWR=2.4

Q: A microwave oven cooks food by irradiating the food with microwave power generated by a magnetron.…

A: tan δc=0.35Operating frequency = 2.45∗109 HzFind: -The average power per cubic meter.

Q: The power received by the receiving antenna is 10-4 W. Transmitting and receiving antennas have gain…

A:

Q: Question A half-wave dipole antenna has Rjoss = 10. What is the antenna gain? | 1.48 )4.18 dB | 1.62…

A: solve prob,,,,

Q: 3- The half wave dipole is widely used in more applications compared to other linear antenna…

A: We need to tell about the half wave dipole antenna.

Q: An antenna has a gain that is 13 times better than an isotropic antenna. Calculate the gain of this…

A: Antenna Gain (G): It is defined as the ratio of transmit/receive power in a particular direction, to…

Q: The directivity of the infinitesimal (ideal dipole) is equal to the directivity of short dipole,…

A: The concentration of an antenna's radiation pattern in a certain direction is measured by…

Q: An active dipole in open circuit has a voltage of 120v and in short circuit it has a current of 25A.…

A: The active dipole can be seen as an ideal voltage source with an internal resistance. When it's in…

Q: 3- Half power beam width of infinitesimal dipole is a) 45 b) 180 c) 135 d) 90

A: Hertzian dipole have radiation patter as

Q: The PCB monopole antenna shown in figure below is required to be designed for Bluetooth Low Energy…

A: Given: The PCB monopole antenna shown in the figure below  is required to be designed for Bluetooth…

Q: A thin dipole antenna having a length of one fifteenth of wavelength has a loss resistance of 2.5…

A: Antenna efficiency is a measure of how efficiently antenna can radiate. It can be expressed by the…

Q: Write a note on smart antennas.

A: Generally antennas are known as transducers  Antenna can receive the electromagnetic wave and it can…

Q: As an application engineer, you found three-unit directional antennas operate at 1.575 GHz with…

A: Given: The three-unit directional antennas operate at 1.575 GHz with unknown gain. The first antenna…

Q: Prepare a table of values for the change of maximum usable frequency when an incident angle change…

A: To prepare the table of values which shows the relation between maximum usable frequencies with the…

Q: The gain of a parabolic reflector antenna is 1000 when the frequency is 300 MHz. If the mouth of the…

A: The gain of a parabolic reflector antenna with a circular aperture mouth can be expressed as…

Q: What will be the EIRP of an antenna that transmits a power of 10 W and has a gain of 15.75?

A: Given information: The power transmitted by the antenna is given as PT=10 W The gain of the…

Q: An antenna has an efficiency of 88% and a power gain of 6 dBi. a)Find the directivity. b)Find the…

A:

Q: In a microwave range measurement system the electromagnetic signal v = A sin 2nft, with f = 100 MHz,…

A: Given data: v1=Asin2πftf=100 MHz

Q: | The radiation resistance of an antenna is 80 2 and loss-resistance is 10 Q. What is :ts…

A: Given: RR=80 ΩRL=10 ΩG=20

Q: A p-n photodiode has a quantum efficiency of 67 % at a wavelength of 0.9 pm .Calculate a. Its…

A: Given quantum efficiency=67%=0.67 wavelength=0.9 pm=0.9*10^-12 m

Q: The radiation and loss resistances of an ante iation efficiency a. TRUE b. FALSE

A: The radiation efficiency is equal to where =radiation resistance and =Loss resistance. Hence,…

Q: olve quickly Antenna and Wave Propagation Detemine basic antenna parameters with examples.

A: An Antenna is a type of transducer that converts the AC (Alternating current) into an RF (radio…

Q: A certain antenna with an efficiency of 95% has maximum radiation intensity of0.5 W/sr. Calculate…

A: In an antenna array, a group of radiating element produce radiation in one direction. Its radiation…

Q: An EMF source has an internal impedance of 100+ 0 ohms, and EMF of 3 V. Using Zo = 502, find the…

A: An impedance discontinuity in the transmission medium can reflect some or all of an electromagnetic…

Q: 1. In an isotropic source, the directivity is unity because O No one of them Uo, U and Umax are…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: An ultrasonic beam of frequency 1 Mhz and intensity 0.5 w/sq cm passes through a layer of soft…

A: We need to find out the thickness of layer for given power ratio

Q: What is the required bandwidth according to the Carson's rule, when a 100 MHz carrier is modulated…

A: Given information: The frequency of the carrier signal is fc=100 MHz. The modulating frequency is…

Q: For a horn antenna, the radiation resistance is 2500 ohms and the loss resistance is 100 ohms.…

A:

Q: An antenna with a radiation resistance of 48 ohms, a loss resistance of 2 ohms, and a reactance of…

A:

Q: The directivity if an antenna is 1.5. what will be the value of the beam solid angle of the antenna?

A: Directivity of an antenna is a measure of how efficiently an antenna can radiate in a specified…

Q: For a helical antenna, the radiation resistance is 250 ohms and the loss resistance is 50 ohms.…

A: Given: For a helical antenna, the radiation resistance is given as Rr=250 Ω and the loss resistance…

Q: Please i need the answer of this question in RF

A: Given: A coil formed by 10 turns of AWG copper wire on 5mm air core assuming its length 5mm and at…

Q: What is the required bandwidth according to the Carson's rule, when a 100 MHz carrier is modulated…

A: Given information: The carrier frequency is fc=100 MHz The modulating frequency is fm=1 kHz The…

Q: A 15 Ω source is connected to an antenna of impedance of 350 Ω, then the value of  VSWR assuming…

A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…

Q: A polar expedition team has a radio receiver for communication. There are series resistances of 5…

A: A polar expedition team has a radio receiver for communication. There are series resistances of 5 Ω…

Q: What will be the directive gain of an isotropic antenna?

A: The directive gain (D) of any antenna can be expressed as D=4πΩA--->(1) where ΩA is the beam…

Q: For 860 MHz carrier frequency and for the geometry and

A:

Q: If x(t) = 8 tri(t /8) * 8(t – 4) the values of x(4) is: Select one: Оа. 4 O b. 8 Ос. 2 O d. none of…

A:

Antenna Characteristics

The antenna is an important concept in the domain of electronics and communication engineering. An antenna forms an integral part of many commonly used devices such as wireless modems, routers, game controllers, mobile phones, bluetooth devices, and so on. In simple terms, any wireless communication makes use of antennas to serve the purpose. An antenna, also known by the term 'arial', is an electrical device that converts electrical signals into electromagnetic waves or electromagnetic waves into electrical signals. An antenna contains a transmission line usually made up of co-axial cable, it then receives the signals and converts them into electromagnetic waves, which are then transmitted via space into their required destination. A communication system essentially makes use of two antennas, a transmission antenna, which converts electrical signals into electromagnetic waves, and a receiving antenna, which receives the electromagnetic waves and converts them back into electrical signals.